obelix74 commented on PR #3385:
URL: https://github.com/apache/polaris/pull/3385#issuecomment-3791270309
@adutra @dimas-b @singhpk234
This PR for metrics persistence is now ready for review.
PR1 (this PR): Database schema v4 and persistence layer for metrics
storage.
• New tables: scan_metrics_report, commit_metrics_report with indexes
• Model classes and converters for Iceberg ScanReport/CommitReport
• Persistence methods: write, query (by table/trace ID), delete (for
retention)
• Schema version checks for graceful degradation on v1-v3 deployments
(review feedback from @dimas-b)
PR2 (follow-up, not raised yet): Metrics processing framework that uses
this persistence layer.
• MetricsPersistence interface with JdbcMetricsPersistence and
NoOpMetricsPersistence implementations (review feedback from @dimas-b)
• MetricsContext for passing request context (principal, trace IDs)
• CDI producer for selecting persistence implementation based on
configuration
• Integration with the REST catalog metrics endpoint
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