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Posted to issues@flink.apache.org by "Xintong Song (Jira)" <ji...@apache.org> on 2023/03/23 08:52:14 UTC

[jira] [Updated] (FLINK-30457) Introduce period compaction to FRocksDB

     [ https://issues.apache.org/jira/browse/FLINK-30457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xintong Song updated FLINK-30457:
---------------------------------
    Fix Version/s: 1.18.0
                       (was: 1.17.0)

> Introduce period compaction to FRocksDB
> ---------------------------------------
>
>                 Key: FLINK-30457
>                 URL: https://issues.apache.org/jira/browse/FLINK-30457
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / State Backends
>            Reporter: Yun Tang
>            Assignee: Yun Tang
>            Priority: Major
>             Fix For: 1.18.0
>
>
> RocksDB supports period compaction once compaction filter is enabled (see https://github.com/facebook/rocksdb/wiki/Leveled-Compaction#periodic-compaction), which is really useful for Flink TTL feature to pick really old files in compaction.
> Current FRocksDB base version: 6.20.3 has included the necessary code on the C++ side: https://github.com/facebook/rocksdb/pull/5166 and https://github.com/facebook/rocksdb/pull/5184. We just need to cherry pick the https://github.com/facebook/rocksdb/pull/8579 on the java side to support it in Flink.



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