changefeedccl: add metrics for the number of events processed by changefeed aggregators

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CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.

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changefeedccl: add metrics for the number of events processed by changefeed aggregators #127995

Open arulajmani opened 3 months ago

arulajmani commented 3 months ago

Describe the problem

While debugging an issue with @tbg and @rharding6373, we found ourselves wanting metrics for the number of evemts processed by each changefeed aggregator in every tick. A per-event metric here would be nice.

Jira issue: CRDB-40727

Epic CRDB-42868

blathers-crl[bot] commented 3 months ago

cc @cockroachdb/cdc