enlarge append recycle log threshold

tikv / raft-engine

A persistent storage engine for Multi-Raft log

Apache License 2.0

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Closed glorv closed 1 year ago

glorv commented 1 year ago

This PR change the recycle log threshold from (purge_threshold / target_file_size) + 2 to (purge_threshold / target_file_size)*1.5 to avoid repeatedly creating and purging log files when tikv's log compaction has non-trivial latency.
Also changes the prefill_limit's semantic meaning, after this change, it will means the total log files threshold instead of recycle files threshold.

glorv commented 1 year ago

@LykxSassinator PTAL thanks~

codecov[bot] commented 1 year ago

Patch coverage is 100.00% of modified lines.

Files Changed	Coverage
src/config.rs	`100.00%`
src/engine.rs	`100.00%`

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