mirror of
https://github.com/scylladb/scylladb.git
synced 2026-04-20 00:20:47 +00:00
3d167dd36e
This series fixes a metrics visibility gap in Alternator and adds regression coverage.
Until now, BatchGetItem and BatchWriteItem updated global latency histograms but did not consistently update per-table latency histograms. As a result, table-level latency dashboards could miss batch traffic.
It updates the batch read/write paths to compute request duration once and record it in both global and per-table latency metrics.
Add the missing tests, including a metric-agnostic helper and a dedicated per-table latency test that verifies latency counters increase for item and batch operations.
This change is metrics-only (no API/behavior change for requests) and improves observability consistency between global and per-table views.
Fixes #28721
**We assume the alternator per-table metrics exist, but the batch ones are not updated**
Closes scylladb/scylladb#28732
* github.com:scylladb/scylladb:
test(alternator): add per-table latency coverage for item and batch ops
alternator: track per-table latency for batch get/write operations
(cherry picked from commit 035aa90d4b)
Closes scylladb/scylladb#29067