将数据导出到外部ML环境

Last update: Tue Jul 16 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

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本文档演示如何将使用Data Distiller创建的准备好的训练数据集共享到ML环境可读取的云存储位置，以便训练和评分模型。此示例将训练数据集导出到数据登陆区(DLZ)。您可以根据需要更改存储目标，以便与机器学习环境配合使用。

目标的流服务用于将计算功能的数据集登陆到适当的云存储位置，从而完成功能管道。

创建源连接 create-source-connection

源连接负责配置与您的Adobe Experience Platform数据集的连接，以便生成的流确切知道应在何处查找数据以及采用何种格式。

from aepp import flowservice
flow_conn = flowservice.FlowService()

training_dataset_id = <YOUR_TRAINING_DATASET_ID>

source_res = flow_conn.createSourceConnectionDataLake(
    name=f"[CMLE] Featurized Dataset source connection created by {username}",
    dataset_ids=[training_dataset_id],
    format="parquet"
)
source_connection_id = source_res["id"]

创建目标连接 create-target-connection

目标连接负责连接到目标文件系统。这需要先创建与云存储帐户（本示例中的数据登陆区）的基本连接，然后使用指定的压缩和格式选项创建与特定文件路径的目标连接。

可用的云存储目标分别由连接规范ID标识：

云存储类型

连接特定 ID

Amazon S3

4fce964d-3f37-408f-9778-e597338a21ee

Azure Blob Storage

6d6b59bf-fb58-4107-9064-4d246c0e5bb2

Azure数据湖

be2c3209-53bc-47e7-ab25-145db8b873e1

数据登陆区

10440537-2a7b-4583-ac39-ed38d4b848e8

Google 云存储

c5d93acb-ea8b-4b14-8f53-02138444ae99

SFTP

36965a81-b1c6-401b-99f8-22508f1e6a26

connection_spec_id = "10440537-2a7b-4583-ac39-ed38d4b848e8"
base_connection_res = flow_conn.createConnection(data={
    "name": "Base Connection to DLZ created by",
    "auth": None,
    "connectionSpec": {
        "id": connection_spec_id,
        "version": "1.0"
    }
})
base_connection_id = base_connection_res["id"]

target_res = flow_conn.createTargetConnection(
    data={
        "name": "Data Landing Zone target connection",
        "baseConnectionId": base_connection_id,
        "params": {
            "mode": "Server-to-server",
            "compression": config.get("Cloud", "compression_type"),
            "datasetFileType": config.get("Cloud", "data_format"),
            "path": config.get("Cloud", "export_path")
        },
        "connectionSpec": {
            "id": connection_spec_id,
            "version": "1.0"
        }
    }
)
target_connection_id = target_res["id"]

创建数据流 create-data-flow

最后一步是在源连接中指定的数据集和目标连接中指定的目标文件路径之间创建数据流。

每个可用的云存储类型都由一个流量规范ID标识：

云存储类型

流量规范ID

Amazon S3

269ba276-16fc-47db-92b0-c1049a3c131f

Azure Blob Storage

95bd8965-fc8a-4119-b9c3-944c2c2df6d2

Azure数据湖

17be2013-2549-41ce-96e7-a70363bec293

数据登陆区

cd2fc47e-e838-4f38-a581-8fff2f99b63a

Google 云存储

585c15c4-6cbf-4126-8f87-e26bff78b657

SFTP

354d6aad-4754-46e4-a576-1b384561c440

以下代码创建一个数据流，其中计划设置为在未来的很长时间开始。这允许您在模型开发期间触发临时流。获得经过训练的模型后，您可以更新数据流的计划，以按所需的计划共享功能数据集。

import time

on_schedule = False
if on_schedule:
    schedule_params = {
        "interval": 3,
        "timeUnit": "hour",
        "startTime": int(time.time())
    }
else:
    schedule_params = {
        "interval": 1,
        "timeUnit": "day",
        "startTime": int(time.time() + 60*60*24*365) # Start the schedule far in the future
    }

flow_spec_id = "cd2fc47e-e838-4f38-a581-8fff2f99b63a"
flow_obj = {
    "name": "Flow for Feature Dataset to DLZ",
    "flowSpec": {
        "id": flow_spec_id,
        "version": "1.0"
    },
    "sourceConnectionIds": [
        source_connection_id
    ],
    "targetConnectionIds": [
        target_connection_id
    ],
    "transformations": [],
    "scheduleParams": schedule_params
}
flow_res = flow_conn.createFlow(
    obj = flow_obj,
    flow_spec_id = flow_spec_id
)
dataflow_id = flow_res["id"]

创建数据流后，您现在可以触发临时流运行以按需共享功能数据集：

from aepp import connector

connector = connector.AdobeRequest(
  config_object=aepp.config.config_object,
  header=aepp.config.header,
  loggingEnabled=False,
  logger=None,
)

endpoint = aepp.config.endpoints["global"] + "/data/core/activation/disflowprovider/adhocrun"

payload = {
    "activationInfo": {
        "destinations": [
            {
                "flowId": dataflow_id,
                "datasets": [
                    {"id": created_dataset_id}
                ]
            }
        ]
    }
}

connector.header.update({"Accept":"application/vnd.adobe.adhoc.dataset.activation+json; version=1"})
activation_res = connector.postData(endpoint=endpoint, data=payload)
activation_res

简化共享到数据登陆区

为了更轻松地将数据集共享到数据登陆区域，aepp库提供了一个exportDatasetToDataLandingZone函数，该函数在单个函数调用中执行上述步骤：

from aepp import exportDatasetToDataLandingZone

export = exportDatasetToDataLandingZone.ExportDatasetToDataLandingZone()

dataflow_id = export.createDataFlowRunIfNotExists(
    dataset_id = created_dataset_id,
    data_format = data_format,
    export_path= export_path,
    compression_type = compression_type,
    on_schedule = False,
    config_path = config_path,
    entity_name = "Flow for Featurized Dataset to DLZ"
)

此代码基于提供的参数创建源连接、目标连接和数据流，并在单个步骤中执行数据流的随机运行。

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