Azure 数据资源管理器 - 使用 MI 连续导出数据

Question

我们正在测试 ADX 中用户分配的托管标识的使用情况以供外部使用 table - [Microsoft 文档][1]

但是，由于错误，连续导出失败，不确定我们缺少什么配置。

Query execution has resulted in error (0x80004003): Partial query failure: Invalid pointer (message: 'Argument '[CreateCredentialsProviderForManagedIdentity] CredentialsStore shouldn't be null when acquiring Managed Identity Credentials Provider.' is null: at CreateCredentialsProviderForManagedIdentity in C:\source\Src\Common\Kusto.Common.Svc\AccessControl\ResourceConnectionStringTokenCredentialsBuilder.cs: line 103 Parameter name: [CreateCredentialsProviderForManagedIdentity] CredentialsStore shouldn't be null when acquiring Managed Identity Credentials Provider. ==> ExecutePluginOperator failure: ', details: 'Source: Kusto.Cloud.Platform System.ArgumentNullException: Argument '[CreateCredentialsProviderForManagedIdentity] CredentialsStore shouldn't be null when acquiring Managed Identity Credentials Provider.' is null: at CreateCredentialsProviderForManagedIdentity in C:\source\Src\Common\Kusto.Common.Svc\AccessControl\ResourceConnectionStringTokenCredentialsBuilder.cs: line 103 Parameter name: [CreateCredentialsProviderForManagedIdentity] CredentialsStore shouldn't be null when acquiring Managed Identity Credentials Provider.

按照步骤操作并使用下面的代码创建了外部 table 和连续导出 -

create-or-alter external table test_ext_raw_logs (ingestiondt: datetime, full_record: string)
    kind=storage
    partition by (Day: datetime = startofday(ingestiondt))
    pathformat = (datetime_pattern("'year='yyyy'/month='MM'/day='dd", Day))
    dataformat=parquet 
    (
    h@'abfss://Container@StorageAccountName.dfs.core.windows.net/log;managed_identity=****'
    )
    with
    (
    docstring = "External Table",
    folder = "Testing",
    namePrefix = "export",
    validateNotEmpty = true
    )

.create-or-alter continuous-export test_raw_logs over (raw_logs)
to table test_ext_raw_logs with (intervalBetweenRuns = 10min) <| (raw_logs | project   ingestiondt = ingestion_time(), full_record = tostring(full_record)|limit 10);

Answer 1

假设您按照文档中的描述设置了托管身份策略，那么您的配置没有任何问题。

但是，我们确实在代码中发现了导致此错误的错误。我们正在为所有受影响的集群部署修复程序。

Azure 数据资源管理器 - 使用 MI 连续导出数据

Azure Data Explorer - Continuous data export using MI

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