Validation des données à l'aide de TFX Pipeline et de TensorFlow Data Validation

Voir sur TensorFlow.org

Exécuter dans Google Colab

Voir la source sur GitHub

Télécharger le cahier

Dans ce didacticiel basé sur un bloc-notes, nous allons créer et exécuter des pipelines TFX pour valider les données d'entrée et créer un modèle ML. Ce portable est basé sur le pipeline TFX nous avons construit en simple TFX Pipeline Tutorial . Si vous n'avez pas encore lu ce didacticiel, vous devriez le lire avant de continuer avec ce bloc-notes.

La première tâche de tout projet de science des données ou de ML est de comprendre et de nettoyer les données, ce qui comprend :

• Comprendre les types de données, les distributions et d'autres informations (par exemple, la valeur moyenne ou le nombre d'uniques) sur chaque fonctionnalité
• Génération d'un schéma préliminaire qui décrit les données
• Identifier les anomalies et les valeurs manquantes dans les données par rapport à un schéma donné

Dans ce tutoriel, nous allons créer deux pipelines TFX.

Tout d'abord, nous allons créer un pipeline pour analyser l'ensemble de données et générer un schéma préliminaire de l'ensemble de données donné. Ce pipeline comprendra deux nouveaux composants, StatisticsGen et SchemaGen .

Une fois que nous avons un schéma approprié des données, nous allons créer un pipeline pour former un modèle de classification ML basé sur le pipeline du didacticiel précédent. Dans ce pipeline, nous utiliserons le schéma de la première canalisation et un nouveau composant, ExampleValidator , pour valider les données d'entrée.

Les trois nouveaux composants, StatisticsGen, SchemaGen et ExampleValidator, sont des composants TFX pour l' analyse des données et la validation, et ils sont mis en œuvre à l' aide de la validation des données tensorflow bibliothèque.

S'il vous plaît voir Comprendre TFX Pipelines pour en savoir plus sur les différents concepts TFX.

D'installation

Nous devons d'abord installer le package Python TFX et télécharger le jeu de données que nous utiliserons pour notre modèle.

Pip de mise à niveau

Pour éviter de mettre à niveau Pip dans un système lors de l'exécution locale, assurez-vous que nous exécutons dans Colab. Les systèmes locaux peuvent bien sûr être mis à niveau séparément.

try:
  import colab
  !pip install --upgrade pip
except:
  pass

Installer TFX

pip install -U tfx

As-tu redémarré le runtime ?

Si vous utilisez Google Colab, la première fois que vous exécutez la cellule ci-dessus, vous devez redémarrer le runtime en cliquant au-dessus du bouton "RESTART RUNTIME" ou en utilisant le menu "Runtime> Restart runtime ...". Cela est dû à la façon dont Colab charge les packages.

Vérifiez les versions TensorFlow et TFX.

import tensorflow as tf
print('TensorFlow version: {}'.format(tf.__version__))
from tfx import v1 as tfx
print('TFX version: {}'.format(tfx.__version__))

TensorFlow version: 2.6.2
TFX version: 1.4.0

Configurer des variables

Certaines variables sont utilisées pour définir un pipeline. Vous pouvez personnaliser ces variables comme vous le souhaitez. Par défaut, toutes les sorties du pipeline seront générées sous le répertoire actuel.

import os

# We will create two pipelines. One for schema generation and one for training.
SCHEMA_PIPELINE_NAME = "penguin-tfdv-schema"
PIPELINE_NAME = "penguin-tfdv"

# Output directory to store artifacts generated from the pipeline.
SCHEMA_PIPELINE_ROOT = os.path.join('pipelines', SCHEMA_PIPELINE_NAME)
PIPELINE_ROOT = os.path.join('pipelines', PIPELINE_NAME)
# Path to a SQLite DB file to use as an MLMD storage.
SCHEMA_METADATA_PATH = os.path.join('metadata', SCHEMA_PIPELINE_NAME,
                                    'metadata.db')
METADATA_PATH = os.path.join('metadata', PIPELINE_NAME, 'metadata.db')

# Output directory where created models from the pipeline will be exported.
SERVING_MODEL_DIR = os.path.join('serving_model', PIPELINE_NAME)

from absl import logging
logging.set_verbosity(logging.INFO)  # Set default logging level.

Préparer des exemples de données

Nous allons télécharger l'exemple de jeu de données à utiliser dans notre pipeline TFX. L'ensemble de données que nous utilisons est dataset Palmer Penguins qui est également utilisé dans d' autres exemples de TFX .

Il y a quatre caractéristiques numériques dans cet ensemble de données :

• culmen_length_mm
• culmen_depth_mm
• longueur_nageoire_mm
• masse_corps_g

Toutes les caractéristiques étaient déjà normalisées pour avoir la plage [0,1]. Nous allons construire un modèle de classification qui prédit les species de manchots.

Étant donné que le composant TFX ExampleGen lit les entrées d'un répertoire, nous devons créer un répertoire et y copier l'ensemble de données.

import urllib.request
import tempfile

DATA_ROOT = tempfile.mkdtemp(prefix='tfx-data')  # Create a temporary directory.
_data_url = 'https://raw.githubusercontent.com/tensorflow/tfx/master/tfx/examples/penguin/data/labelled/penguins_processed.csv'
_data_filepath = os.path.join(DATA_ROOT, "data.csv")
urllib.request.urlretrieve(_data_url, _data_filepath)

('/tmp/tfx-datan3p7t1d2/data.csv', <http.client.HTTPMessage at 0x7f8d2f9f9110>)

Jetez un coup d'œil au fichier CSV.

head {_data_filepath}

species,culmen_length_mm,culmen_depth_mm,flipper_length_mm,body_mass_g
0,0.2545454545454545,0.6666666666666666,0.15254237288135594,0.2916666666666667
0,0.26909090909090905,0.5119047619047618,0.23728813559322035,0.3055555555555556
0,0.29818181818181805,0.5833333333333334,0.3898305084745763,0.1527777777777778
0,0.16727272727272732,0.7380952380952381,0.3559322033898305,0.20833333333333334
0,0.26181818181818167,0.892857142857143,0.3050847457627119,0.2638888888888889
0,0.24727272727272717,0.5595238095238096,0.15254237288135594,0.2569444444444444
0,0.25818181818181823,0.773809523809524,0.3898305084745763,0.5486111111111112
0,0.32727272727272727,0.5357142857142859,0.1694915254237288,0.1388888888888889
0,0.23636363636363636,0.9642857142857142,0.3220338983050847,0.3055555555555556

Vous devriez pouvoir voir cinq colonnes de fonctionnalités. species est l' un des 0, 1 ou 2, et toutes les autres caractéristiques devraient avoir des valeurs comprises entre 0 et 1. Nous allons créer un pipeline de TFX pour analyser cet ensemble de données.

Générer un schéma préliminaire

Les pipelines TFX sont définis à l'aide d'API Python. Nous allons créer un pipeline pour générer automatiquement un schéma à partir des exemples d'entrée. Ce schéma peut être revu par un humain et ajusté au besoin. Une fois le schéma finalisé, il peut être utilisé pour la formation et la validation d'exemples dans des tâches ultérieures.

En plus de CsvExampleGen qui est utilisé dans simple TFX Pipeline Tutorial , nous utiliserons StatisticsGen et SchemaGen :

• StatisticsGen calcule les statistiques pour l'ensemble de données.
• SchemaGen examine les statistiques et crée un schéma de données initial.

Voir les guides pour chaque composant ou tutoriel composants TFX pour en savoir plus sur ces composants.

Écrire une définition de pipeline

Nous définissons une fonction pour créer un pipeline TFX. Un Pipeline objet représente un pipeline de TFX qui peut être exécuté en utilisant l' un des systèmes d'orchestration de pipeline qui TFX supports.

def _create_schema_pipeline(pipeline_name: str,
                            pipeline_root: str,
                            data_root: str,
                            metadata_path: str) -> tfx.dsl.Pipeline:
  """Creates a pipeline for schema generation."""
  # Brings data into the pipeline.
  example_gen = tfx.components.CsvExampleGen(input_base=data_root)

  # NEW: Computes statistics over data for visualization and schema generation.
  statistics_gen = tfx.components.StatisticsGen(
      examples=example_gen.outputs['examples'])

  # NEW: Generates schema based on the generated statistics.
  schema_gen = tfx.components.SchemaGen(
      statistics=statistics_gen.outputs['statistics'], infer_feature_shape=True)

  components = [
      example_gen,
      statistics_gen,
      schema_gen,
  ]

  return tfx.dsl.Pipeline(
      pipeline_name=pipeline_name,
      pipeline_root=pipeline_root,
      metadata_connection_config=tfx.orchestration.metadata
      .sqlite_metadata_connection_config(metadata_path),
      components=components)

Exécuter le pipeline

Nous utiliserons LocalDagRunner comme dans le tutoriel précédent.

tfx.orchestration.LocalDagRunner().run(
  _create_schema_pipeline(
      pipeline_name=SCHEMA_PIPELINE_NAME,
      pipeline_root=SCHEMA_PIPELINE_ROOT,
      data_root=DATA_ROOT,
      metadata_path=SCHEMA_METADATA_PATH))

INFO:absl:Excluding no splits because exclude_splits is not set.
INFO:absl:Excluding no splits because exclude_splits is not set.
INFO:absl:Using deployment config:
 executor_specs {
  key: "CsvExampleGen"
  value {
    beam_executable_spec {
      python_executor_spec {
        class_path: "tfx.components.example_gen.csv_example_gen.executor.Executor"
      }
    }
  }
}
executor_specs {
  key: "SchemaGen"
  value {
    python_class_executable_spec {
      class_path: "tfx.components.schema_gen.executor.Executor"
    }
  }
}
executor_specs {
  key: "StatisticsGen"
  value {
    beam_executable_spec {
      python_executor_spec {
        class_path: "tfx.components.statistics_gen.executor.Executor"
      }
    }
  }
}
custom_driver_specs {
  key: "CsvExampleGen"
  value {
    python_class_executable_spec {
      class_path: "tfx.components.example_gen.driver.FileBasedDriver"
    }
  }
}
metadata_connection_config {
  sqlite {
    filename_uri: "metadata/penguin-tfdv-schema/metadata.db"
    connection_mode: READWRITE_OPENCREATE
  }
}

INFO:absl:Using connection config:
 sqlite {
  filename_uri: "metadata/penguin-tfdv-schema/metadata.db"
  connection_mode: READWRITE_OPENCREATE
}

INFO:absl:Component CsvExampleGen is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.example_gen.csv_example_gen.component.CsvExampleGen"
  }
  id: "CsvExampleGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:06.420329"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema.CsvExampleGen"
      }
    }
  }
}
outputs {
  outputs {
    key: "examples"
    value {
      artifact_spec {
        type {
          name: "Examples"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
          properties {
            key: "version"
            value: INT
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "input_base"
    value {
      field_value {
        string_value: "/tmp/tfx-datan3p7t1d2"
      }
    }
  }
  parameters {
    key: "input_config"
    value {
      field_value {
        string_value: "{\n  \"splits\": [\n    {\n      \"name\": \"single_split\",\n      \"pattern\": \"*\"\n    }\n  ]\n}"
      }
    }
  }
  parameters {
    key: "output_config"
    value {
      field_value {
        string_value: "{\n  \"split_config\": {\n    \"splits\": [\n      {\n        \"hash_buckets\": 2,\n        \"name\": \"train\"\n      },\n      {\n        \"hash_buckets\": 1,\n        \"name\": \"eval\"\n      }\n    ]\n  }\n}"
      }
    }
  }
  parameters {
    key: "output_data_format"
    value {
      field_value {
        int_value: 6
      }
    }
  }
  parameters {
    key: "output_file_format"
    value {
      field_value {
        int_value: 5
      }
    }
  }
}
downstream_nodes: "StatisticsGen"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
WARNING: Logging before InitGoogleLogging() is written to STDERR
I1205 11:10:06.444468  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:06.453292  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:06.460209  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:06.467104  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:select span and version = (0, None)
INFO:absl:latest span and version = (0, None)
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 1
I1205 11:10:06.521926  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=1, input_dict={}, output_dict=defaultdict(<class 'list'>, {'examples': [Artifact(artifact: uri: "pipelines/penguin-tfdv-schema/CsvExampleGen/examples/1"
custom_properties {
  key: "input_fingerprint"
  value {
    string_value: "split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:CsvExampleGen:examples:0"
  }
}
custom_properties {
  key: "span"
  value {
    int_value: 0
  }
}
, artifact_type: name: "Examples"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
properties {
  key: "version"
  value: INT
}
)]}), exec_properties={'input_config': '{\n  "splits": [\n    {\n      "name": "single_split",\n      "pattern": "*"\n    }\n  ]\n}', 'output_config': '{\n  "split_config": {\n    "splits": [\n      {\n        "hash_buckets": 2,\n        "name": "train"\n      },\n      {\n        "hash_buckets": 1,\n        "name": "eval"\n      }\n    ]\n  }\n}', 'input_base': '/tmp/tfx-datan3p7t1d2', 'output_file_format': 5, 'output_data_format': 6, 'span': 0, 'version': None, 'input_fingerprint': 'split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606'}, execution_output_uri='pipelines/penguin-tfdv-schema/CsvExampleGen/.system/executor_execution/1/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv-schema/CsvExampleGen/.system/stateful_working_dir/2021-12-05T11:10:06.420329', tmp_dir='pipelines/penguin-tfdv-schema/CsvExampleGen/.system/executor_execution/1/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.example_gen.csv_example_gen.component.CsvExampleGen"
  }
  id: "CsvExampleGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:06.420329"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema.CsvExampleGen"
      }
    }
  }
}
outputs {
  outputs {
    key: "examples"
    value {
      artifact_spec {
        type {
          name: "Examples"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
          properties {
            key: "version"
            value: INT
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "input_base"
    value {
      field_value {
        string_value: "/tmp/tfx-datan3p7t1d2"
      }
    }
  }
  parameters {
    key: "input_config"
    value {
      field_value {
        string_value: "{\n  \"splits\": [\n    {\n      \"name\": \"single_split\",\n      \"pattern\": \"*\"\n    }\n  ]\n}"
      }
    }
  }
  parameters {
    key: "output_config"
    value {
      field_value {
        string_value: "{\n  \"split_config\": {\n    \"splits\": [\n      {\n        \"hash_buckets\": 2,\n        \"name\": \"train\"\n      },\n      {\n        \"hash_buckets\": 1,\n        \"name\": \"eval\"\n      }\n    ]\n  }\n}"
      }
    }
  }
  parameters {
    key: "output_data_format"
    value {
      field_value {
        int_value: 6
      }
    }
  }
  parameters {
    key: "output_file_format"
    value {
      field_value {
        int_value: 5
      }
    }
  }
}
downstream_nodes: "StatisticsGen"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv-schema"
, pipeline_run_id='2021-12-05T11:10:06.420329')
INFO:absl:Generating examples.
WARNING:apache_beam.runners.interactive.interactive_environment:Dependencies required for Interactive Beam PCollection visualization are not available, please use: `pip install apache-beam[interactive]` to install necessary dependencies to enable all data visualization features.
INFO:absl:Processing input csv data /tmp/tfx-datan3p7t1d2/* to TFExample.
WARNING:root:Make sure that locally built Python SDK docker image has Python 3.7 interpreter.
WARNING:apache_beam.io.tfrecordio:Couldn't find python-snappy so the implementation of _TFRecordUtil._masked_crc32c is not as fast as it could be.
INFO:absl:Examples generated.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 1 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'examples': [Artifact(artifact: uri: "pipelines/penguin-tfdv-schema/CsvExampleGen/examples/1"
custom_properties {
  key: "input_fingerprint"
  value {
    string_value: "split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:CsvExampleGen:examples:0"
  }
}
custom_properties {
  key: "span"
  value {
    int_value: 0
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
, artifact_type: name: "Examples"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
properties {
  key: "version"
  value: INT
}
)]}) for execution 1
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component CsvExampleGen is finished.
INFO:absl:Component StatisticsGen is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.statistics_gen.component.StatisticsGen"
  }
  id: "StatisticsGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:06.420329"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema.StatisticsGen"
      }
    }
  }
}
inputs {
  inputs {
    key: "examples"
    value {
      channels {
        producer_node_query {
          id: "CsvExampleGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:06.420329"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema.CsvExampleGen"
            }
          }
        }
        artifact_query {
          type {
            name: "Examples"
          }
        }
        output_key: "examples"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "statistics"
    value {
      artifact_spec {
        type {
          name: "ExampleStatistics"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
}
upstream_nodes: "CsvExampleGen"
downstream_nodes: "SchemaGen"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:08.104562  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 2
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=2, input_dict={'examples': [Artifact(artifact: id: 1
type_id: 15
uri: "pipelines/penguin-tfdv-schema/CsvExampleGen/examples/1"
properties {
  key: "split_names"
  value {
    string_value: "[\"train\", \"eval\"]"
  }
}
custom_properties {
  key: "file_format"
  value {
    string_value: "tfrecords_gzip"
  }
}
custom_properties {
  key: "input_fingerprint"
  value {
    string_value: "split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:CsvExampleGen:examples:0"
  }
}
custom_properties {
  key: "payload_format"
  value {
    string_value: "FORMAT_TF_EXAMPLE"
  }
}
custom_properties {
  key: "span"
  value {
    int_value: 0
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
state: LIVE
create_time_since_epoch: 1638702608076
last_update_time_since_epoch: 1638702608076
, artifact_type: id: 15
name: "Examples"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
properties {
  key: "version"
  value: INT
}
)]}, output_dict=defaultdict(<class 'list'>, {'statistics': [Artifact(artifact: uri: "pipelines/penguin-tfdv-schema/StatisticsGen/statistics/2"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:StatisticsGen:statistics:0"
  }
}
, artifact_type: name: "ExampleStatistics"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}), exec_properties={'exclude_splits': '[]'}, execution_output_uri='pipelines/penguin-tfdv-schema/StatisticsGen/.system/executor_execution/2/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv-schema/StatisticsGen/.system/stateful_working_dir/2021-12-05T11:10:06.420329', tmp_dir='pipelines/penguin-tfdv-schema/StatisticsGen/.system/executor_execution/2/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.statistics_gen.component.StatisticsGen"
  }
  id: "StatisticsGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:06.420329"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema.StatisticsGen"
      }
    }
  }
}
inputs {
  inputs {
    key: "examples"
    value {
      channels {
        producer_node_query {
          id: "CsvExampleGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:06.420329"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema.CsvExampleGen"
            }
          }
        }
        artifact_query {
          type {
            name: "Examples"
          }
        }
        output_key: "examples"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "statistics"
    value {
      artifact_spec {
        type {
          name: "ExampleStatistics"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
}
upstream_nodes: "CsvExampleGen"
downstream_nodes: "SchemaGen"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv-schema"
, pipeline_run_id='2021-12-05T11:10:06.420329')
INFO:absl:Generating statistics for split train.
INFO:absl:Statistics for split train written to pipelines/penguin-tfdv-schema/StatisticsGen/statistics/2/Split-train.
INFO:absl:Generating statistics for split eval.
INFO:absl:Statistics for split eval written to pipelines/penguin-tfdv-schema/StatisticsGen/statistics/2/Split-eval.
WARNING:root:Make sure that locally built Python SDK docker image has Python 3.7 interpreter.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 2 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'statistics': [Artifact(artifact: uri: "pipelines/penguin-tfdv-schema/StatisticsGen/statistics/2"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:StatisticsGen:statistics:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
, artifact_type: name: "ExampleStatistics"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}) for execution 2
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component StatisticsGen is finished.
INFO:absl:Component SchemaGen is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.schema_gen.component.SchemaGen"
  }
  id: "SchemaGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:06.420329"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema.SchemaGen"
      }
    }
  }
}
inputs {
  inputs {
    key: "statistics"
    value {
      channels {
        producer_node_query {
          id: "StatisticsGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:06.420329"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema.StatisticsGen"
            }
          }
        }
        artifact_query {
          type {
            name: "ExampleStatistics"
          }
        }
        output_key: "statistics"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "schema"
    value {
      artifact_spec {
        type {
          name: "Schema"
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
  parameters {
    key: "infer_feature_shape"
    value {
      field_value {
        int_value: 1
      }
    }
  }
}
upstream_nodes: "StatisticsGen"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:10.975282  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 3
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=3, input_dict={'statistics': [Artifact(artifact: id: 2
type_id: 17
uri: "pipelines/penguin-tfdv-schema/StatisticsGen/statistics/2"
properties {
  key: "split_names"
  value {
    string_value: "[\"train\", \"eval\"]"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:StatisticsGen:statistics:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
state: LIVE
create_time_since_epoch: 1638702610957
last_update_time_since_epoch: 1638702610957
, artifact_type: id: 17
name: "ExampleStatistics"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}, output_dict=defaultdict(<class 'list'>, {'schema': [Artifact(artifact: uri: "pipelines/penguin-tfdv-schema/SchemaGen/schema/3"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:SchemaGen:schema:0"
  }
}
, artifact_type: name: "Schema"
)]}), exec_properties={'exclude_splits': '[]', 'infer_feature_shape': 1}, execution_output_uri='pipelines/penguin-tfdv-schema/SchemaGen/.system/executor_execution/3/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv-schema/SchemaGen/.system/stateful_working_dir/2021-12-05T11:10:06.420329', tmp_dir='pipelines/penguin-tfdv-schema/SchemaGen/.system/executor_execution/3/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.schema_gen.component.SchemaGen"
  }
  id: "SchemaGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:06.420329"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv-schema.SchemaGen"
      }
    }
  }
}
inputs {
  inputs {
    key: "statistics"
    value {
      channels {
        producer_node_query {
          id: "StatisticsGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:06.420329"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv-schema.StatisticsGen"
            }
          }
        }
        artifact_query {
          type {
            name: "ExampleStatistics"
          }
        }
        output_key: "statistics"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "schema"
    value {
      artifact_spec {
        type {
          name: "Schema"
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
  parameters {
    key: "infer_feature_shape"
    value {
      field_value {
        int_value: 1
      }
    }
  }
}
upstream_nodes: "StatisticsGen"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv-schema"
, pipeline_run_id='2021-12-05T11:10:06.420329')
INFO:absl:Processing schema from statistics for split train.
INFO:absl:Processing schema from statistics for split eval.
INFO:absl:Schema written to pipelines/penguin-tfdv-schema/SchemaGen/schema/3/schema.pbtxt.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 3 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'schema': [Artifact(artifact: uri: "pipelines/penguin-tfdv-schema/SchemaGen/schema/3"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv-schema:2021-12-05T11:10:06.420329:SchemaGen:schema:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
, artifact_type: name: "Schema"
)]}) for execution 3
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component SchemaGen is finished.
I1205 11:10:11.010145  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type

Vous devriez voir "INFO:absl:Component SchemaGen est terminé." si le pipeline s'est terminé avec succès.

Nous examinerons la sortie du pipeline pour comprendre notre ensemble de données.

Examiner les résultats du pipeline

Comme cela est expliqué dans le tutoriel précédent, un pipeline de TFX produit deux types de sorties, des artefacts et un méta - données DB (MLMD) qui contient des métadonnées d'objets façonnés et les exécutions de pipeline. Nous avons défini l'emplacement de ces sorties dans les cellules ci-dessus. Par défaut, les artefacts sont stockés dans le pipelines répertoire et les métadonnées sont stockées en tant que base de données SQLite sous le metadata répertoire.

Vous pouvez utiliser les API MLMD pour localiser ces sorties par programmation. Tout d'abord, nous allons définir quelques fonctions utilitaires pour rechercher les artefacts de sortie qui viennent d'être produits.

from ml_metadata.proto import metadata_store_pb2
# Non-public APIs, just for showcase.
from tfx.orchestration.portable.mlmd import execution_lib

# TODO(b/171447278): Move these functions into the TFX library.

def get_latest_artifacts(metadata, pipeline_name, component_id):
  """Output artifacts of the latest run of the component."""
  context = metadata.store.get_context_by_type_and_name(
      'node', f'{pipeline_name}.{component_id}')
  executions = metadata.store.get_executions_by_context(context.id)
  latest_execution = max(executions,
                         key=lambda e:e.last_update_time_since_epoch)
  return execution_lib.get_artifacts_dict(metadata, latest_execution.id,
                                          [metadata_store_pb2.Event.OUTPUT])

# Non-public APIs, just for showcase.
from tfx.orchestration.experimental.interactive import visualizations

def visualize_artifacts(artifacts):
  """Visualizes artifacts using standard visualization modules."""
  for artifact in artifacts:
    visualization = visualizations.get_registry().get_visualization(
        artifact.type_name)
    if visualization:
      visualization.display(artifact)

from tfx.orchestration.experimental.interactive import standard_visualizations
standard_visualizations.register_standard_visualizations()

Nous pouvons maintenant examiner les sorties de l'exécution du pipeline.

# Non-public APIs, just for showcase.
from tfx.orchestration.metadata import Metadata
from tfx.types import standard_component_specs

metadata_connection_config = tfx.orchestration.metadata.sqlite_metadata_connection_config(
    SCHEMA_METADATA_PATH)

with Metadata(metadata_connection_config) as metadata_handler:
  # Find output artifacts from MLMD.
  stat_gen_output = get_latest_artifacts(metadata_handler, SCHEMA_PIPELINE_NAME,
                                         'StatisticsGen')
  stats_artifacts = stat_gen_output[standard_component_specs.STATISTICS_KEY]

  schema_gen_output = get_latest_artifacts(metadata_handler,
                                           SCHEMA_PIPELINE_NAME, 'SchemaGen')
  schema_artifacts = schema_gen_output[standard_component_specs.SCHEMA_KEY]

INFO:absl:MetadataStore with DB connection initialized

Il est temps d'examiner les résultats de chaque composante. Comme décrit ci - dessus, tensorflow Validation des StatisticsGen SchemaGen données (TFDV) est utilisé dans StatisticsGen et SchemaGen et TFDV fournit également la visualisation des sorties de ces composants.

Dans ce didacticiel, nous utiliserons les méthodes d'aide à la visualisation dans TFX qui utilisent TFDV en interne pour afficher la visualisation.

Examiner la sortie de StatisticsGen

# docs-infra: no-execute
visualize_artifacts(stats_artifacts)

Vous pouvez voir diverses statistiques pour les données d'entrée. Ces statistiques sont fournies à SchemaGen pour construire un schéma initial de données automatiquement.

Examiner la sortie de SchemaGen

visualize_artifacts(schema_artifacts)

Ce schéma est automatiquement déduit de la sortie de StatisticsGen. Vous devriez pouvoir voir 4 fonctions FLOAT et 1 fonction INT.

Exporter le schéma pour une utilisation future

Nous devons revoir et affiner le schéma généré. Le schéma révisé doit être conservé pour être utilisé dans les pipelines suivants pour la formation du modèle ML. En d'autres termes, vous souhaiterez peut-être ajouter le fichier de schéma à votre système de contrôle de version pour les cas d'utilisation réels. Dans ce tutoriel, nous allons simplement copier le schéma dans un chemin de système de fichiers prédéfini pour plus de simplicité.

import shutil

_schema_filename = 'schema.pbtxt'
SCHEMA_PATH = 'schema'

os.makedirs(SCHEMA_PATH, exist_ok=True)
_generated_path = os.path.join(schema_artifacts[0].uri, _schema_filename)

# Copy the 'schema.pbtxt' file from the artifact uri to a predefined path.
shutil.copy(_generated_path, SCHEMA_PATH)

'schema/schema.pbtxt'

Le fichier de schéma utilise le format de texte du Protocole tampon et une instance de tensorflow Schéma de métadonnées proto .

print(f'Schema at {SCHEMA_PATH}-----')
!cat {SCHEMA_PATH}/*

Schema at schema-----
feature {
  name: "body_mass_g"
  type: FLOAT
  presence {
    min_fraction: 1.0
    min_count: 1
  }
  shape {
    dim {
      size: 1
    }
  }
}
feature {
  name: "culmen_depth_mm"
  type: FLOAT
  presence {
    min_fraction: 1.0
    min_count: 1
  }
  shape {
    dim {
      size: 1
    }
  }
}
feature {
  name: "culmen_length_mm"
  type: FLOAT
  presence {
    min_fraction: 1.0
    min_count: 1
  }
  shape {
    dim {
      size: 1
    }
  }
}
feature {
  name: "flipper_length_mm"
  type: FLOAT
  presence {
    min_fraction: 1.0
    min_count: 1
  }
  shape {
    dim {
      size: 1
    }
  }
}
feature {
  name: "species"
  type: INT
  presence {
    min_fraction: 1.0
    min_count: 1
  }
  shape {
    dim {
      size: 1
    }
  }
}

Vous devez vous assurer de revoir et éventuellement de modifier la définition du schéma si nécessaire. Dans ce tutoriel, nous utiliserons simplement le schéma généré inchangé.

Valider les exemples d'entrée et former un modèle ML

Nous allons revenir à la conduite que nous avons créé dans Simple TFX Pipeline Tutorial , pour former un modèle ML et utiliser le schéma généré pour l' écriture du code modèle de formation.

Nous ajouterons également un ExampleValidator composant qui recherchera des anomalies et des valeurs manquantes dans l'ensemble de données entrant par rapport au schéma.

Écrire le code d'entraînement du modèle

Nous devons écrire le code de modèle que nous avons fait en simple TFX Pipeline Tutorial .

Le modèle lui-même est le même que dans le didacticiel précédent, mais cette fois, nous utiliserons le schéma généré à partir du pipeline précédent au lieu de spécifier les fonctionnalités manuellement. La plupart du code n'a pas été modifié. La seule différence est que nous n'avons pas besoin de spécifier les noms et les types de fonctionnalités dans ce fichier. Au lieu de cela, nous les lire à partir du fichier de schéma.

_trainer_module_file = 'penguin_trainer.py'

%%writefile {_trainer_module_file}

from typing import List
from absl import logging
import tensorflow as tf
from tensorflow import keras
from tensorflow_transform.tf_metadata import schema_utils

from tfx import v1 as tfx
from tfx_bsl.public import tfxio
from tensorflow_metadata.proto.v0 import schema_pb2

# We don't need to specify _FEATURE_KEYS and _FEATURE_SPEC any more.
# Those information can be read from the given schema file.

_LABEL_KEY = 'species'

_TRAIN_BATCH_SIZE = 20
_EVAL_BATCH_SIZE = 10

def _input_fn(file_pattern: List[str],
              data_accessor: tfx.components.DataAccessor,
              schema: schema_pb2.Schema,
              batch_size: int = 200) -> tf.data.Dataset:
  """Generates features and label for training.

  Args:
    file_pattern: List of paths or patterns of input tfrecord files.
    data_accessor: DataAccessor for converting input to RecordBatch.
    schema: schema of the input data.
    batch_size: representing the number of consecutive elements of returned
      dataset to combine in a single batch

  Returns:
    A dataset that contains (features, indices) tuple where features is a
      dictionary of Tensors, and indices is a single Tensor of label indices.
  """
  return data_accessor.tf_dataset_factory(
      file_pattern,
      tfxio.TensorFlowDatasetOptions(
          batch_size=batch_size, label_key=_LABEL_KEY),
      schema=schema).repeat()


def _build_keras_model(schema: schema_pb2.Schema) -> tf.keras.Model:
  """Creates a DNN Keras model for classifying penguin data.

  Returns:
    A Keras Model.
  """
  # The model below is built with Functional API, please refer to
  # https://www.tensorflow.org/guide/keras/overview for all API options.

  # ++ Changed code: Uses all features in the schema except the label.
  feature_keys = [f.name for f in schema.feature if f.name != _LABEL_KEY]
  inputs = [keras.layers.Input(shape=(1,), name=f) for f in feature_keys]
  # ++ End of the changed code.

  d = keras.layers.concatenate(inputs)
  for _ in range(2):
    d = keras.layers.Dense(8, activation='relu')(d)
  outputs = keras.layers.Dense(3)(d)

  model = keras.Model(inputs=inputs, outputs=outputs)
  model.compile(
      optimizer=keras.optimizers.Adam(1e-2),
      loss=tf.keras.losses.SparseCategoricalCrossentropy(from_logits=True),
      metrics=[keras.metrics.SparseCategoricalAccuracy()])

  model.summary(print_fn=logging.info)
  return model


# TFX Trainer will call this function.
def run_fn(fn_args: tfx.components.FnArgs):
  """Train the model based on given args.

  Args:
    fn_args: Holds args used to train the model as name/value pairs.
  """

  # ++ Changed code: Reads in schema file passed to the Trainer component.
  schema = tfx.utils.parse_pbtxt_file(fn_args.schema_path, schema_pb2.Schema())
  # ++ End of the changed code.

  train_dataset = _input_fn(
      fn_args.train_files,
      fn_args.data_accessor,
      schema,
      batch_size=_TRAIN_BATCH_SIZE)
  eval_dataset = _input_fn(
      fn_args.eval_files,
      fn_args.data_accessor,
      schema,
      batch_size=_EVAL_BATCH_SIZE)

  model = _build_keras_model(schema)
  model.fit(
      train_dataset,
      steps_per_epoch=fn_args.train_steps,
      validation_data=eval_dataset,
      validation_steps=fn_args.eval_steps)

  # The result of the training should be saved in `fn_args.serving_model_dir`
  # directory.
  model.save(fn_args.serving_model_dir, save_format='tf')

Writing penguin_trainer.py

Vous avez maintenant terminé toutes les étapes de préparation pour créer un pipeline TFX pour la formation de modèle.

Écrire une définition de pipeline

Nous allons ajouter deux nouveaux composants, l' Importer et ExampleValidator . L'importateur apporte un fichier externe dans le pipeline TFX. Dans ce cas, il s'agit d'un fichier contenant la définition du schéma. ExampleValidator examinera les données d'entrée et validera si toutes les données d'entrée sont conformes au schéma de données que nous avons fourni.

def _create_pipeline(pipeline_name: str, pipeline_root: str, data_root: str,
                     schema_path: str, module_file: str, serving_model_dir: str,
                     metadata_path: str) -> tfx.dsl.Pipeline:
  """Creates a pipeline using predefined schema with TFX."""
  # Brings data into the pipeline.
  example_gen = tfx.components.CsvExampleGen(input_base=data_root)

  # Computes statistics over data for visualization and example validation.
  statistics_gen = tfx.components.StatisticsGen(
      examples=example_gen.outputs['examples'])

  # NEW: Import the schema.
  schema_importer = tfx.dsl.Importer(
      source_uri=schema_path,
      artifact_type=tfx.types.standard_artifacts.Schema).with_id(
          'schema_importer')

  # NEW: Performs anomaly detection based on statistics and data schema.
  example_validator = tfx.components.ExampleValidator(
      statistics=statistics_gen.outputs['statistics'],
      schema=schema_importer.outputs['result'])

  # Uses user-provided Python function that trains a model.
  trainer = tfx.components.Trainer(
      module_file=module_file,
      examples=example_gen.outputs['examples'],
      schema=schema_importer.outputs['result'],  # Pass the imported schema.
      train_args=tfx.proto.TrainArgs(num_steps=100),
      eval_args=tfx.proto.EvalArgs(num_steps=5))

  # Pushes the model to a filesystem destination.
  pusher = tfx.components.Pusher(
      model=trainer.outputs['model'],
      push_destination=tfx.proto.PushDestination(
          filesystem=tfx.proto.PushDestination.Filesystem(
              base_directory=serving_model_dir)))

  components = [
      example_gen,

      # NEW: Following three components were added to the pipeline.
      statistics_gen,
      schema_importer,
      example_validator,

      trainer,
      pusher,
  ]

  return tfx.dsl.Pipeline(
      pipeline_name=pipeline_name,
      pipeline_root=pipeline_root,
      metadata_connection_config=tfx.orchestration.metadata
      .sqlite_metadata_connection_config(metadata_path),
      components=components)

Exécuter le pipeline

tfx.orchestration.LocalDagRunner().run(
  _create_pipeline(
      pipeline_name=PIPELINE_NAME,
      pipeline_root=PIPELINE_ROOT,
      data_root=DATA_ROOT,
      schema_path=SCHEMA_PATH,
      module_file=_trainer_module_file,
      serving_model_dir=SERVING_MODEL_DIR,
      metadata_path=METADATA_PATH))

INFO:absl:Excluding no splits because exclude_splits is not set.
INFO:absl:Excluding no splits because exclude_splits is not set.
INFO:absl:Generating ephemeral wheel package for '/tmpfs/src/temp/docs/tutorials/tfx/penguin_trainer.py' (including modules: ['penguin_trainer']).
INFO:absl:User module package has hash fingerprint version 000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2.
INFO:absl:Executing: ['/tmpfs/src/tf_docs_env/bin/python', '/tmp/tmp50dqc5bp/_tfx_generated_setup.py', 'bdist_wheel', '--bdist-dir', '/tmp/tmp6_kn7s87', '--dist-dir', '/tmp/tmpwt7plki0']
/tmpfs/src/tf_docs_env/lib/python3.7/site-packages/setuptools/command/install.py:37: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  setuptools.SetuptoolsDeprecationWarning,
listing git files failed - pretending there aren't any
INFO:absl:Successfully built user code wheel distribution at 'pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl'; target user module is 'penguin_trainer'.
INFO:absl:Full user module path is 'penguin_trainer@pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl'
INFO:absl:Using deployment config:
 executor_specs {
  key: "CsvExampleGen"
  value {
    beam_executable_spec {
      python_executor_spec {
        class_path: "tfx.components.example_gen.csv_example_gen.executor.Executor"
      }
    }
  }
}
executor_specs {
  key: "ExampleValidator"
  value {
    python_class_executable_spec {
      class_path: "tfx.components.example_validator.executor.Executor"
    }
  }
}
executor_specs {
  key: "Pusher"
  value {
    python_class_executable_spec {
      class_path: "tfx.components.pusher.executor.Executor"
    }
  }
}
executor_specs {
  key: "StatisticsGen"
  value {
    beam_executable_spec {
      python_executor_spec {
        class_path: "tfx.components.statistics_gen.executor.Executor"
      }
    }
  }
}
executor_specs {
  key: "Trainer"
  value {
    python_class_executable_spec {
      class_path: "tfx.components.trainer.executor.GenericExecutor"
    }
  }
}
custom_driver_specs {
  key: "CsvExampleGen"
  value {
    python_class_executable_spec {
      class_path: "tfx.components.example_gen.driver.FileBasedDriver"
    }
  }
}
metadata_connection_config {
  sqlite {
    filename_uri: "metadata/penguin-tfdv/metadata.db"
    connection_mode: READWRITE_OPENCREATE
  }
}

INFO:absl:Using connection config:
 sqlite {
  filename_uri: "metadata/penguin-tfdv/metadata.db"
  connection_mode: READWRITE_OPENCREATE
}

INFO:absl:Component CsvExampleGen is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.example_gen.csv_example_gen.component.CsvExampleGen"
  }
  id: "CsvExampleGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.CsvExampleGen"
      }
    }
  }
}
outputs {
  outputs {
    key: "examples"
    value {
      artifact_spec {
        type {
          name: "Examples"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
          properties {
            key: "version"
            value: INT
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "input_base"
    value {
      field_value {
        string_value: "/tmp/tfx-datan3p7t1d2"
      }
    }
  }
  parameters {
    key: "input_config"
    value {
      field_value {
        string_value: "{\n  \"splits\": [\n    {\n      \"name\": \"single_split\",\n      \"pattern\": \"*\"\n    }\n  ]\n}"
      }
    }
  }
  parameters {
    key: "output_config"
    value {
      field_value {
        string_value: "{\n  \"split_config\": {\n    \"splits\": [\n      {\n        \"hash_buckets\": 2,\n        \"name\": \"train\"\n      },\n      {\n        \"hash_buckets\": 1,\n        \"name\": \"eval\"\n      }\n    ]\n  }\n}"
      }
    }
  }
  parameters {
    key: "output_data_format"
    value {
      field_value {
        int_value: 6
      }
    }
  }
  parameters {
    key: "output_file_format"
    value {
      field_value {
        int_value: 5
      }
    }
  }
}
downstream_nodes: "StatisticsGen"
downstream_nodes: "Trainer"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:11.685647  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:11.692644  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:11.699625  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:11.708110  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:select span and version = (0, None)
INFO:absl:latest span and version = (0, None)
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 1
I1205 11:10:11.722760  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=1, input_dict={}, output_dict=defaultdict(<class 'list'>, {'examples': [Artifact(artifact: uri: "pipelines/penguin-tfdv/CsvExampleGen/examples/1"
custom_properties {
  key: "input_fingerprint"
  value {
    string_value: "split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:CsvExampleGen:examples:0"
  }
}
custom_properties {
  key: "span"
  value {
    int_value: 0
  }
}
, artifact_type: name: "Examples"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
properties {
  key: "version"
  value: INT
}
)]}), exec_properties={'input_base': '/tmp/tfx-datan3p7t1d2', 'input_config': '{\n  "splits": [\n    {\n      "name": "single_split",\n      "pattern": "*"\n    }\n  ]\n}', 'output_data_format': 6, 'output_config': '{\n  "split_config": {\n    "splits": [\n      {\n        "hash_buckets": 2,\n        "name": "train"\n      },\n      {\n        "hash_buckets": 1,\n        "name": "eval"\n      }\n    ]\n  }\n}', 'output_file_format': 5, 'span': 0, 'version': None, 'input_fingerprint': 'split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606'}, execution_output_uri='pipelines/penguin-tfdv/CsvExampleGen/.system/executor_execution/1/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv/CsvExampleGen/.system/stateful_working_dir/2021-12-05T11:10:11.667239', tmp_dir='pipelines/penguin-tfdv/CsvExampleGen/.system/executor_execution/1/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.example_gen.csv_example_gen.component.CsvExampleGen"
  }
  id: "CsvExampleGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.CsvExampleGen"
      }
    }
  }
}
outputs {
  outputs {
    key: "examples"
    value {
      artifact_spec {
        type {
          name: "Examples"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
          properties {
            key: "version"
            value: INT
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "input_base"
    value {
      field_value {
        string_value: "/tmp/tfx-datan3p7t1d2"
      }
    }
  }
  parameters {
    key: "input_config"
    value {
      field_value {
        string_value: "{\n  \"splits\": [\n    {\n      \"name\": \"single_split\",\n      \"pattern\": \"*\"\n    }\n  ]\n}"
      }
    }
  }
  parameters {
    key: "output_config"
    value {
      field_value {
        string_value: "{\n  \"split_config\": {\n    \"splits\": [\n      {\n        \"hash_buckets\": 2,\n        \"name\": \"train\"\n      },\n      {\n        \"hash_buckets\": 1,\n        \"name\": \"eval\"\n      }\n    ]\n  }\n}"
      }
    }
  }
  parameters {
    key: "output_data_format"
    value {
      field_value {
        int_value: 6
      }
    }
  }
  parameters {
    key: "output_file_format"
    value {
      field_value {
        int_value: 5
      }
    }
  }
}
downstream_nodes: "StatisticsGen"
downstream_nodes: "Trainer"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv"
, pipeline_run_id='2021-12-05T11:10:11.667239')
INFO:absl:Generating examples.
INFO:absl:Processing input csv data /tmp/tfx-datan3p7t1d2/* to TFExample.
running bdist_wheel
running build
running build_py
creating build
creating build/lib
copying penguin_trainer.py -> build/lib
installing to /tmp/tmp6_kn7s87
running install
running install_lib
copying build/lib/penguin_trainer.py -> /tmp/tmp6_kn7s87
running install_egg_info
running egg_info
creating tfx_user_code_Trainer.egg-info
writing tfx_user_code_Trainer.egg-info/PKG-INFO
writing dependency_links to tfx_user_code_Trainer.egg-info/dependency_links.txt
writing top-level names to tfx_user_code_Trainer.egg-info/top_level.txt
writing manifest file 'tfx_user_code_Trainer.egg-info/SOURCES.txt'
reading manifest file 'tfx_user_code_Trainer.egg-info/SOURCES.txt'
writing manifest file 'tfx_user_code_Trainer.egg-info/SOURCES.txt'
Copying tfx_user_code_Trainer.egg-info to /tmp/tmp6_kn7s87/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3.7.egg-info
running install_scripts
creating /tmp/tmp6_kn7s87/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2.dist-info/WHEEL
creating '/tmp/tmpwt7plki0/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl' and adding '/tmp/tmp6_kn7s87' to it
adding 'penguin_trainer.py'
adding 'tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2.dist-info/METADATA'
adding 'tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2.dist-info/WHEEL'
adding 'tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2.dist-info/top_level.txt'
adding 'tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2.dist-info/RECORD'
removing /tmp/tmp6_kn7s87
WARNING:root:Make sure that locally built Python SDK docker image has Python 3.7 interpreter.
INFO:absl:Examples generated.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 1 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'examples': [Artifact(artifact: uri: "pipelines/penguin-tfdv/CsvExampleGen/examples/1"
custom_properties {
  key: "input_fingerprint"
  value {
    string_value: "split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:CsvExampleGen:examples:0"
  }
}
custom_properties {
  key: "span"
  value {
    int_value: 0
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
, artifact_type: name: "Examples"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
properties {
  key: "version"
  value: INT
}
)]}) for execution 1
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component CsvExampleGen is finished.
INFO:absl:Component schema_importer is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.dsl.components.common.importer.Importer"
  }
  id: "schema_importer"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.schema_importer"
      }
    }
  }
}
outputs {
  outputs {
    key: "result"
    value {
      artifact_spec {
        type {
          name: "Schema"
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "artifact_uri"
    value {
      field_value {
        string_value: "schema"
      }
    }
  }
  parameters {
    key: "reimport"
    value {
      field_value {
        int_value: 0
      }
    }
  }
}
downstream_nodes: "ExampleValidator"
downstream_nodes: "Trainer"
execution_options {
  caching_options {
  }
}

INFO:absl:Running as an importer node.
INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:12.796727  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Processing source uri: schema, properties: {}, custom_properties: {}
INFO:absl:Component schema_importer is finished.
I1205 11:10:12.806819  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Component StatisticsGen is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.statistics_gen.component.StatisticsGen"
  }
  id: "StatisticsGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.StatisticsGen"
      }
    }
  }
}
inputs {
  inputs {
    key: "examples"
    value {
      channels {
        producer_node_query {
          id: "CsvExampleGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.CsvExampleGen"
            }
          }
        }
        artifact_query {
          type {
            name: "Examples"
          }
        }
        output_key: "examples"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "statistics"
    value {
      artifact_spec {
        type {
          name: "ExampleStatistics"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
}
upstream_nodes: "CsvExampleGen"
downstream_nodes: "ExampleValidator"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:12.827589  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 3
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=3, input_dict={'examples': [Artifact(artifact: id: 1
type_id: 15
uri: "pipelines/penguin-tfdv/CsvExampleGen/examples/1"
properties {
  key: "split_names"
  value {
    string_value: "[\"train\", \"eval\"]"
  }
}
custom_properties {
  key: "file_format"
  value {
    string_value: "tfrecords_gzip"
  }
}
custom_properties {
  key: "input_fingerprint"
  value {
    string_value: "split:single_split,num_files:1,total_bytes:25648,xor_checksum:1638702606,sum_checksum:1638702606"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:CsvExampleGen:examples:0"
  }
}
custom_properties {
  key: "payload_format"
  value {
    string_value: "FORMAT_TF_EXAMPLE"
  }
}
custom_properties {
  key: "span"
  value {
    int_value: 0
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
state: LIVE
create_time_since_epoch: 1638702612780
last_update_time_since_epoch: 1638702612780
, artifact_type: id: 15
name: "Examples"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
properties {
  key: "version"
  value: INT
}
)]}, output_dict=defaultdict(<class 'list'>, {'statistics': [Artifact(artifact: uri: "pipelines/penguin-tfdv/StatisticsGen/statistics/3"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:StatisticsGen:statistics:0"
  }
}
, artifact_type: name: "ExampleStatistics"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}), exec_properties={'exclude_splits': '[]'}, execution_output_uri='pipelines/penguin-tfdv/StatisticsGen/.system/executor_execution/3/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv/StatisticsGen/.system/stateful_working_dir/2021-12-05T11:10:11.667239', tmp_dir='pipelines/penguin-tfdv/StatisticsGen/.system/executor_execution/3/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.statistics_gen.component.StatisticsGen"
  }
  id: "StatisticsGen"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
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    }
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  contexts {
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      name: "node"
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    name {
      field_value {
        string_value: "penguin-tfdv.StatisticsGen"
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inputs {
  inputs {
    key: "examples"
    value {
      channels {
        producer_node_query {
          id: "CsvExampleGen"
        }
        context_queries {
          type {
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        context_queries {
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          name {
            field_value {
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        artifact_query {
          type {
            name: "Examples"
          }
        }
        output_key: "examples"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "statistics"
    value {
      artifact_spec {
        type {
          name: "ExampleStatistics"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
}
upstream_nodes: "CsvExampleGen"
downstream_nodes: "ExampleValidator"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv"
, pipeline_run_id='2021-12-05T11:10:11.667239')
INFO:absl:Generating statistics for split train.
INFO:absl:Statistics for split train written to pipelines/penguin-tfdv/StatisticsGen/statistics/3/Split-train.
INFO:absl:Generating statistics for split eval.
INFO:absl:Statistics for split eval written to pipelines/penguin-tfdv/StatisticsGen/statistics/3/Split-eval.
WARNING:root:Make sure that locally built Python SDK docker image has Python 3.7 interpreter.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 3 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'statistics': [Artifact(artifact: uri: "pipelines/penguin-tfdv/StatisticsGen/statistics/3"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:StatisticsGen:statistics:0"
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custom_properties {
  key: "tfx_version"
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    string_value: "1.4.0"
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, artifact_type: name: "ExampleStatistics"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}) for execution 3
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component StatisticsGen is finished.
INFO:absl:Component Trainer is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.trainer.component.Trainer"
  }
  id: "Trainer"
}
contexts {
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        context_queries {
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outputs {
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parameters {
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      field_value {
        string_value: "penguin_trainer@pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl"
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}
upstream_nodes: "CsvExampleGen"
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downstream_nodes: "Pusher"
execution_options {
  caching_options {
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}

INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:15.426606  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 4
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=4, input_dict={'examples': [Artifact(artifact: id: 1
type_id: 15
uri: "pipelines/penguin-tfdv/CsvExampleGen/examples/1"
properties {
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  value {
    string_value: "[\"train\", \"eval\"]"
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custom_properties {
  key: "file_format"
  value {
    string_value: "tfrecords_gzip"
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custom_properties {
  key: "input_fingerprint"
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custom_properties {
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custom_properties {
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custom_properties {
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custom_properties {
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    string_value: "1.4.0"
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state: LIVE
create_time_since_epoch: 1638702612780
last_update_time_since_epoch: 1638702612780
, artifact_type: id: 15
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properties {
  key: "span"
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properties {
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properties {
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)], 'schema': [Artifact(artifact: id: 2
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custom_properties {
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state: LIVE
create_time_since_epoch: 1638702612810
last_update_time_since_epoch: 1638702612810
, artifact_type: id: 17
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custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:Trainer:model_run:0"
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)], 'model': [Artifact(artifact: uri: "pipelines/penguin-tfdv/Trainer/model/4"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:Trainer:model:0"
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, artifact_type: name: "Model"
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  id: "Trainer"
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contexts {
  contexts {
    type {
      name: "pipeline"
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    name {
      field_value {
        string_value: "penguin-tfdv"
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  contexts {
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      field_value {
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inputs {
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        context_queries {
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        context_queries {
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              string_value: "penguin-tfdv.CsvExampleGen"
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        artifact_query {
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        output_key: "examples"
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      min_count: 1
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  inputs {
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      channels {
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        context_queries {
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        }
        artifact_query {
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            name: "Schema"
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        output_key: "result"
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outputs {
  outputs {
    key: "model"
    value {
      artifact_spec {
        type {
          name: "Model"
        }
      }
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  }
  outputs {
    key: "model_run"
    value {
      artifact_spec {
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parameters {
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      field_value {
        string_value: "penguin_trainer@pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl"
      }
    }
  }
  parameters {
    key: "train_args"
    value {
      field_value {
        string_value: "{\n  \"num_steps\": 100\n}"
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upstream_nodes: "CsvExampleGen"
upstream_nodes: "schema_importer"
downstream_nodes: "Pusher"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv"
, pipeline_run_id='2021-12-05T11:10:11.667239')
INFO:absl:Train on the 'train' split when train_args.splits is not set.
INFO:absl:Evaluate on the 'eval' split when eval_args.splits is not set.
INFO:absl:udf_utils.get_fn {'eval_args': '{\n  "num_steps": 5\n}', 'module_path': 'penguin_trainer@pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl', 'custom_config': 'null', 'train_args': '{\n  "num_steps": 100\n}'} 'run_fn'
INFO:absl:Installing 'pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl' to a temporary directory.
INFO:absl:Executing: ['/tmpfs/src/tf_docs_env/bin/python', '-m', 'pip', 'install', '--target', '/tmp/tmpbb1l9_v7', 'pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl']
Processing ./pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl
INFO:absl:Successfully installed 'pipelines/penguin-tfdv/_wheels/tfx_user_code_Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2-py3-none-any.whl'.
INFO:absl:Training model.
INFO:absl:Feature body_mass_g has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_depth_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature flipper_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature species has a shape dim {
  size: 1
}
. Setting to DenseTensor.
Installing collected packages: tfx-user-code-Trainer
Successfully installed tfx-user-code-Trainer-0.0+000876a22093ec764e3751d5a3ed939f1b107d1d6ade133f954ea2a767b8dfb2
INFO:absl:Feature body_mass_g has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_depth_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature flipper_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature species has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature body_mass_g has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_depth_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature flipper_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature species has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature body_mass_g has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_depth_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature culmen_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature flipper_length_mm has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Feature species has a shape dim {
  size: 1
}
. Setting to DenseTensor.
INFO:absl:Model: "model"
INFO:absl:__________________________________________________________________________________________________
INFO:absl:Layer (type)                    Output Shape         Param #     Connected to                     
INFO:absl:==================================================================================================
INFO:absl:body_mass_g (InputLayer)        [(None, 1)]          0                                            
INFO:absl:__________________________________________________________________________________________________
INFO:absl:culmen_depth_mm (InputLayer)    [(None, 1)]          0                                            
INFO:absl:__________________________________________________________________________________________________
INFO:absl:culmen_length_mm (InputLayer)   [(None, 1)]          0                                            
INFO:absl:__________________________________________________________________________________________________
INFO:absl:flipper_length_mm (InputLayer)  [(None, 1)]          0                                            
INFO:absl:__________________________________________________________________________________________________
INFO:absl:concatenate (Concatenate)       (None, 4)            0           body_mass_g[0][0]                
INFO:absl:                                                                 culmen_depth_mm[0][0]            
INFO:absl:                                                                 culmen_length_mm[0][0]           
INFO:absl:                                                                 flipper_length_mm[0][0]          
INFO:absl:__________________________________________________________________________________________________
INFO:absl:dense (Dense)                   (None, 8)            40          concatenate[0][0]                
INFO:absl:__________________________________________________________________________________________________
INFO:absl:dense_1 (Dense)                 (None, 8)            72          dense[0][0]                      
INFO:absl:__________________________________________________________________________________________________
INFO:absl:dense_2 (Dense)                 (None, 3)            27          dense_1[0][0]                    
INFO:absl:==================================================================================================
INFO:absl:Total params: 139
INFO:absl:Trainable params: 139
INFO:absl:Non-trainable params: 0
INFO:absl:__________________________________________________________________________________________________
100/100 [==============================] - 1s 3ms/step - loss: 0.5752 - sparse_categorical_accuracy: 0.8165 - val_loss: 0.2294 - val_sparse_categorical_accuracy: 0.9400
2021-12-05 11:10:20.208161: W tensorflow/python/util/util.cc:348] Sets are not currently considered sequences, but this may change in the future, so consider avoiding using them.
INFO:tensorflow:Assets written to: pipelines/penguin-tfdv/Trainer/model/4/Format-Serving/assets
INFO:tensorflow:Assets written to: pipelines/penguin-tfdv/Trainer/model/4/Format-Serving/assets
INFO:absl:Training complete. Model written to pipelines/penguin-tfdv/Trainer/model/4/Format-Serving. ModelRun written to pipelines/penguin-tfdv/Trainer/model_run/4
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 4 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'model_run': [Artifact(artifact: uri: "pipelines/penguin-tfdv/Trainer/model_run/4"
custom_properties {
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  value {
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custom_properties {
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, artifact_type: name: "ModelRun"
)], 'model': [Artifact(artifact: uri: "pipelines/penguin-tfdv/Trainer/model/4"
custom_properties {
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custom_properties {
  key: "tfx_version"
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    string_value: "1.4.0"
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}
, artifact_type: name: "Model"
)]}) for execution 4
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component Trainer is finished.
I1205 11:10:20.766410  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
I1205 11:10:20.770478  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Component ExampleValidator is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.example_validator.component.ExampleValidator"
  }
  id: "ExampleValidator"
}
contexts {
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inputs {
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        context_queries {
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            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.schema_importer"
            }
          }
        }
        artifact_query {
          type {
            name: "Schema"
          }
        }
        output_key: "result"
      }
      min_count: 1
    }
  }
  inputs {
    key: "statistics"
    value {
      channels {
        producer_node_query {
          id: "StatisticsGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.StatisticsGen"
            }
          }
        }
        artifact_query {
          type {
            name: "ExampleStatistics"
          }
        }
        output_key: "statistics"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "anomalies"
    value {
      artifact_spec {
        type {
          name: "ExampleAnomalies"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
}
upstream_nodes: "StatisticsGen"
upstream_nodes: "schema_importer"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:20.793696  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Going to run a new execution 5
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=5, input_dict={'statistics': [Artifact(artifact: id: 3
type_id: 19
uri: "pipelines/penguin-tfdv/StatisticsGen/statistics/3"
properties {
  key: "split_names"
  value {
    string_value: "[\"train\", \"eval\"]"
  }
}
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:StatisticsGen:statistics:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
state: LIVE
create_time_since_epoch: 1638702615406
last_update_time_since_epoch: 1638702615406
, artifact_type: id: 19
name: "ExampleStatistics"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)], 'schema': [Artifact(artifact: id: 2
type_id: 17
uri: "schema"
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
state: LIVE
create_time_since_epoch: 1638702612810
last_update_time_since_epoch: 1638702612810
, artifact_type: id: 17
name: "Schema"
)]}, output_dict=defaultdict(<class 'list'>, {'anomalies': [Artifact(artifact: uri: "pipelines/penguin-tfdv/ExampleValidator/anomalies/5"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:ExampleValidator:anomalies:0"
  }
}
, artifact_type: name: "ExampleAnomalies"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}), exec_properties={'exclude_splits': '[]'}, execution_output_uri='pipelines/penguin-tfdv/ExampleValidator/.system/executor_execution/5/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv/ExampleValidator/.system/stateful_working_dir/2021-12-05T11:10:11.667239', tmp_dir='pipelines/penguin-tfdv/ExampleValidator/.system/executor_execution/5/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.example_validator.component.ExampleValidator"
  }
  id: "ExampleValidator"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.ExampleValidator"
      }
    }
  }
}
inputs {
  inputs {
    key: "schema"
    value {
      channels {
        producer_node_query {
          id: "schema_importer"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.schema_importer"
            }
          }
        }
        artifact_query {
          type {
            name: "Schema"
          }
        }
        output_key: "result"
      }
      min_count: 1
    }
  }
  inputs {
    key: "statistics"
    value {
      channels {
        producer_node_query {
          id: "StatisticsGen"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.StatisticsGen"
            }
          }
        }
        artifact_query {
          type {
            name: "ExampleStatistics"
          }
        }
        output_key: "statistics"
      }
      min_count: 1
    }
  }
}
outputs {
  outputs {
    key: "anomalies"
    value {
      artifact_spec {
        type {
          name: "ExampleAnomalies"
          properties {
            key: "span"
            value: INT
          }
          properties {
            key: "split_names"
            value: STRING
          }
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "exclude_splits"
    value {
      field_value {
        string_value: "[]"
      }
    }
  }
}
upstream_nodes: "StatisticsGen"
upstream_nodes: "schema_importer"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv"
, pipeline_run_id='2021-12-05T11:10:11.667239')
INFO:absl:Validating schema against the computed statistics for split train.
INFO:absl:Validation complete for split train. Anomalies written to pipelines/penguin-tfdv/ExampleValidator/anomalies/5/Split-train.
INFO:absl:Validating schema against the computed statistics for split eval.
INFO:absl:Validation complete for split eval. Anomalies written to pipelines/penguin-tfdv/ExampleValidator/anomalies/5/Split-eval.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 5 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'anomalies': [Artifact(artifact: uri: "pipelines/penguin-tfdv/ExampleValidator/anomalies/5"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:ExampleValidator:anomalies:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
, artifact_type: name: "ExampleAnomalies"
properties {
  key: "span"
  value: INT
}
properties {
  key: "split_names"
  value: STRING
}
)]}) for execution 5
INFO:absl:MetadataStore with DB connection initialized
INFO:absl:Component ExampleValidator is finished.
INFO:absl:Component Pusher is running.
INFO:absl:Running launcher for node_info {
  type {
    name: "tfx.components.pusher.component.Pusher"
  }
  id: "Pusher"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.Pusher"
      }
    }
  }
}
inputs {
  inputs {
    key: "model"
    value {
      channels {
        producer_node_query {
          id: "Trainer"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.Trainer"
            }
          }
        }
        artifact_query {
          type {
            name: "Model"
          }
        }
        output_key: "model"
      }
    }
  }
}
outputs {
  outputs {
    key: "pushed_model"
    value {
      artifact_spec {
        type {
          name: "PushedModel"
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "custom_config"
    value {
      field_value {
        string_value: "null"
      }
    }
  }
  parameters {
    key: "push_destination"
    value {
      field_value {
        string_value: "{\n  \"filesystem\": {\n    \"base_directory\": \"serving_model/penguin-tfdv\"\n  }\n}"
      }
    }
  }
}
upstream_nodes: "Trainer"
execution_options {
  caching_options {
  }
}

INFO:absl:MetadataStore with DB connection initialized
INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:20.848567  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Going to run a new execution 6
INFO:absl:Going to run a new execution: ExecutionInfo(execution_id=6, input_dict={'model': [Artifact(artifact: id: 5
type_id: 22
uri: "pipelines/penguin-tfdv/Trainer/model/4"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:Trainer:model:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
state: LIVE
create_time_since_epoch: 1638702620774
last_update_time_since_epoch: 1638702620774
, artifact_type: id: 22
name: "Model"
)]}, output_dict=defaultdict(<class 'list'>, {'pushed_model': [Artifact(artifact: uri: "pipelines/penguin-tfdv/Pusher/pushed_model/6"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:Pusher:pushed_model:0"
  }
}
, artifact_type: name: "PushedModel"
)]}), exec_properties={'push_destination': '{\n  "filesystem": {\n    "base_directory": "serving_model/penguin-tfdv"\n  }\n}', 'custom_config': 'null'}, execution_output_uri='pipelines/penguin-tfdv/Pusher/.system/executor_execution/6/executor_output.pb', stateful_working_dir='pipelines/penguin-tfdv/Pusher/.system/stateful_working_dir/2021-12-05T11:10:11.667239', tmp_dir='pipelines/penguin-tfdv/Pusher/.system/executor_execution/6/.temp/', pipeline_node=node_info {
  type {
    name: "tfx.components.pusher.component.Pusher"
  }
  id: "Pusher"
}
contexts {
  contexts {
    type {
      name: "pipeline"
    }
    name {
      field_value {
        string_value: "penguin-tfdv"
      }
    }
  }
  contexts {
    type {
      name: "pipeline_run"
    }
    name {
      field_value {
        string_value: "2021-12-05T11:10:11.667239"
      }
    }
  }
  contexts {
    type {
      name: "node"
    }
    name {
      field_value {
        string_value: "penguin-tfdv.Pusher"
      }
    }
  }
}
inputs {
  inputs {
    key: "model"
    value {
      channels {
        producer_node_query {
          id: "Trainer"
        }
        context_queries {
          type {
            name: "pipeline"
          }
          name {
            field_value {
              string_value: "penguin-tfdv"
            }
          }
        }
        context_queries {
          type {
            name: "pipeline_run"
          }
          name {
            field_value {
              string_value: "2021-12-05T11:10:11.667239"
            }
          }
        }
        context_queries {
          type {
            name: "node"
          }
          name {
            field_value {
              string_value: "penguin-tfdv.Trainer"
            }
          }
        }
        artifact_query {
          type {
            name: "Model"
          }
        }
        output_key: "model"
      }
    }
  }
}
outputs {
  outputs {
    key: "pushed_model"
    value {
      artifact_spec {
        type {
          name: "PushedModel"
        }
      }
    }
  }
}
parameters {
  parameters {
    key: "custom_config"
    value {
      field_value {
        string_value: "null"
      }
    }
  }
  parameters {
    key: "push_destination"
    value {
      field_value {
        string_value: "{\n  \"filesystem\": {\n    \"base_directory\": \"serving_model/penguin-tfdv\"\n  }\n}"
      }
    }
  }
}
upstream_nodes: "Trainer"
execution_options {
  caching_options {
  }
}
, pipeline_info=id: "penguin-tfdv"
, pipeline_run_id='2021-12-05T11:10:11.667239')
WARNING:absl:Pusher is going to push the model without validation. Consider using Evaluator or InfraValidator in your pipeline.
INFO:absl:Model version: 1638702620
INFO:absl:Model written to serving path serving_model/penguin-tfdv/1638702620.
INFO:absl:Model pushed to pipelines/penguin-tfdv/Pusher/pushed_model/6.
INFO:absl:Cleaning up stateless execution info.
INFO:absl:Execution 6 succeeded.
INFO:absl:Cleaning up stateful execution info.
INFO:absl:Publishing output artifacts defaultdict(<class 'list'>, {'pushed_model': [Artifact(artifact: uri: "pipelines/penguin-tfdv/Pusher/pushed_model/6"
custom_properties {
  key: "name"
  value {
    string_value: "penguin-tfdv:2021-12-05T11:10:11.667239:Pusher:pushed_model:0"
  }
}
custom_properties {
  key: "tfx_version"
  value {
    string_value: "1.4.0"
  }
}
, artifact_type: name: "PushedModel"
)]}) for execution 6
INFO:absl:MetadataStore with DB connection initialized
I1205 11:10:20.879335  4006 rdbms_metadata_access_object.cc:686] No property is defined for the Type
INFO:absl:Component Pusher is finished.

Vous devriez voir « INFO:absl:Component Pusher terminé. si le pipeline s'est terminé avec succès.

Examiner les sorties du pipeline

Nous avons entraîné le modèle de classification pour les pingouins et nous avons également validé les exemples d'entrée dans le composant ExampleValidator. Nous pouvons analyser la sortie de ExampleValidator comme nous l'avons fait avec le pipeline précédent.

metadata_connection_config = tfx.orchestration.metadata.sqlite_metadata_connection_config(
    METADATA_PATH)

with Metadata(metadata_connection_config) as metadata_handler:
  ev_output = get_latest_artifacts(metadata_handler, PIPELINE_NAME,
                                   'ExampleValidator')
  anomalies_artifacts = ev_output[standard_component_specs.ANOMALIES_KEY]

INFO:absl:MetadataStore with DB connection initialized

Les exemples d'anomalies de l'ExempleValidator peuvent également être visualisés.

visualize_artifacts(anomalies_artifacts)

Vous devriez voir "Aucune anomalie trouvée" pour chaque fractionnement d'exemples. Étant donné que nous avons utilisé les mêmes données que celles utilisées pour la génération de schéma dans ce pipeline, aucune anomalie n'est attendue ici. Si vous exécutez ce pipeline à plusieurs reprises avec de nouvelles données entrantes, ExampleValidator devrait être en mesure de détecter les écarts entre les nouvelles données et le schéma existant.

Si des anomalies ont été trouvées, vous pouvez examiner vos données pour vérifier si des exemples ne correspondent pas à vos hypothèses. Les sorties d'autres composants comme StatisticsGen peuvent être utiles. Cependant, toute anomalie détectée ne bloquera PAS les exécutions ultérieures du pipeline.

Prochaines étapes

Vous pouvez trouver plus de ressources sur https://www.tensorflow.org/tfx/tutorials

S'il vous plaît voir Comprendre TFX Pipelines pour en savoir plus sur les différents concepts TFX.