Details
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Improvement
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Resolution: Done
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Critical
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None
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1
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KV-Engine Sprint 2021 August
Description
Currently checkpoints can take up to the entire bucket quota. That has a number of problematic side effects in DGM scenarios, eg Resident Ratio dropping to 0, high replica checkpoints memory usage contributing to replication live-locks, etc..
It's important to highlight that capping the Checkpoint quota is expected to directly solve some existing issues (like the Resident Ratio one), but the same doesn't apply to other issues (like the DCP live-lock) where the high Checkpoint mem-usage is probably just one of the factors that contribute to the problem. Other factors are being investigated and addressed in dedicated MBs.