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Pavel Pereslegin updated IGNITE-22638: -------------------------------------- Labels: ignite-3 (was: ) > Catalog compaction. Provide listener API on MvPartitionStorage with semantic > onBeforeCheckpoint. > ------------------------------------------------------------------------------------------------ > > Key: IGNITE-22638 > URL: https://issues.apache.org/jira/browse/IGNITE-22638 > Project: Ignite > Issue Type: Task > Reporter: Pavel Pereslegin > Priority: Major > Labels: ignite-3 > > To perform catalog compaction, we need to determine and save a minimum time > (low watermark) that guarantees that when next time we'll apply the raft log, > we don't need the history up to that timestamp. > To implement calculation of the minimum local timestamp, we need to provide > an API with semantics similar to CheckpointListener#beforeCheckpointBegin (or > afterCheckpointEnd, *to be clarified*) to transiently save this timestamp. > This timestamp make sence only for groups (*clarify*) with persistence, but > it would be nice to have a common API (for example in MvPartitionStorage). So > the implementation requires collaboration with the storage engine team. -- This message was sent by Atlassian Jira (v8.20.10#820010)