kvserver: deflake WALBytesWritten metric
#126109
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There is a race condition in Pebble metrics where sometimes the WAL is rotated prior to updated the BytesIn metric to account for the previous WAL. The metrics collection call happens async so it can sometimes cause this metric to decrease for a scrape window. Fixes: cockroachdb#125736. Release note: None
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RaduBerinde
approved these changes
Jun 24, 2024
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There is a race condition in Pebble metrics where sometimes the WAL is rotated prior to updated the BytesIn metric to account for the previous WAL. The metrics collection call happens async so it can sometimes cause this metric to decrease for a scrape window.
Fixes: #125736.
Release note: None