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Monitoring and alerting - Amazon EMR
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Monitoring and alerting

Amazon CloudWatch metrics

Set enableDataQualityCloudWatchMetrics to true in the EvaluateDataQuality transform's publishing_options to emit per-run metrics to the Glue Data Quality namespace in Amazon CloudWatch. For Data Quality runs on Amazon EMR, metrics have a Platform dimension that indicates the Amazon EMR deployment mode that produced the run (for example, emr-ec2, emr-eks, or emr-serverless), together with an EvaluationContext dimension, so you can build alarms per dataset and per deployment mode.

Metric Description
glue.data.quality.rules.passed Number of rules in the ruleset that passed on this run.
glue.data.quality.rules.failed Number of rules in the ruleset that failed on this run.

The same metric names are emitted by Amazon Glue Data Quality, so alarms built against the Glue Data Quality namespace apply to both engines. For a walkthrough of building a CloudWatch alarm on these metrics, see Setting up alerts, deployments, and scheduling in the Amazon Glue Developer Guide.

Viewing results in the Amazon Glue console

When your application sets publishToDataCatalogTarget with a DatabaseName and TableName, each run is attributed to that Amazon Glue Data Catalog table and is visible in the Amazon Glue console:

  1. Open the Amazon Glue console and choose Data Catalog, then Databases.

  2. Choose the database your application targeted, then choose the table.

  3. Open the Data quality tab to see the run history for that table, including runs from Amazon EMR Data Quality and from Amazon Glue ETL that share the same catalog target.

Without publishToDataCatalogTarget, results are not attributed to a catalog table and the Amazon Glue console does not display them. Use the Amazon Glue Data Quality APIs or the Amazon CLI to retrieve those runs. See Retrieving historical results.

Limitations

The Data quality tab shows the overall data quality score and run metadata for each run. Per-rule outcomes and FailureReason values are not displayed in the console; retrieve them with GetDataQualityResultV2 or BatchGetDataQualityResultV2 (see Retrieving historical results).