Details
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Bug
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Resolution: Unresolved
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Critical
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7.2.3
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Untriaged
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0
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Unknown
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Plasma-May-6-2024, Plasma-May-13-2024
Description
Log Cleaner is not able to bring fragmentation down. Using data files from a customer, the log cleaner behaviour is reproducible:
before cleaning: log head offset 1344009305587 tail offset 1348079476736
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LSS /Users/akhil.mundroy/tickets/CBSE-16929/opt/couchbase/var/lib/couchbase/data/@2i/shards/shard4/data(shard4) : logCleaner: starting... frag 87, data: 508740201, used: 4070171149 log:(1344123438107 - 1348079476736) head:1344009305587
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LSS /Users/akhil.mundroy/tickets/CBSE-16929/opt/couchbase/var/lib/couchbase/data/@2i/shards/shard4/data(shard4) : logCleaner: completed... frag 86, data: 508743081, used: 3704258530, disk: 3704890893, relocated: 451934, retries: 0, skipped: 7007, cleaned:3956034563, log:(1348079472670 - 1351783731200), disk:(1348078840307-1351783731200), activeFragRatio:100, activeMaxFragRatio:100, run:1 duration:75485 ms elapsed: 75485 ms
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after cleaning: log head offset 1348079472670 tail offset 1351783731200
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But, it seems that the data log has reached a bad state that still needs RCA.
Attachments
Gerrit Reviews
| For Gerrit Dashboard: MB-61677 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 209505,3 | MB-61677: Validate offset before relocating in log cleaner | unstable | plasma | Status: NEW | 0 | -1 |