Caleb Rackliffe created CASSANDRA-18940:
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Summary: SAI post-filtering reads don't update local table latency
metrics
Key: CASSANDRA-18940
URL: https://issues.apache.org/jira/browse/CASSANDRA-18940
Project: Cassandra
Issue Type: Bug
Components: Feature/2i Index, Feature/SAI, Observability/Metrics
Reporter: Caleb Rackliffe
Assignee: Caleb Rackliffe
Attachments:
draft_fix_for_SAI_post-filtering_reads_not_updating_local_table_metrics.patch
Once an SAI index finds matches (primary keys), it reads the associated rows
and post-filters them to incorporate partial writes, tombstones, etc. However,
those reads are not currently updating the local table latency metrics. It
should be simple enough to attach a metrics recording transformation to the
iterator produced by querying local storage. (I've attached a patch that should
apply cleanly to trunk, but there may be a better way...)
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