release-21.2: vendor: bump Pebble to f9d4931a5fd2 #79611
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f9d4931a compaction: add L0CompactionFileThreshold compaction trigger Release note (bug fix): Fix a bug where Pebble compaction heuristics could allow a large compaction backlog to accumulate, eventually triggering high read amplfiication.
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jbowens
changed the title
nicktrav
approved these changes
Apr 7, 2022
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Reviewed 4 of 4 files at r1, all commit messages.
Reviewable status:complete! 1 of 0 LGTMs obtained (waiting on @jbowens)
jbowens
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Apr 8, 2022
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TFTR!
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Release note (bug fix): Fix a bug where Pebble compaction heuristics
could allow a large compaction backlog to accumulate, eventually
triggering high read amplification.
Release justification: Fixes high severity bug resulting from an interaction
between Pebble compaction heuristics and admission control.