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Posted to issues@flink.apache.org by "Xintong Song (Jira)" <ji...@apache.org> on 2021/01/20 15:02:01 UTC
[jira] [Updated] (FLINK-14159) flink rocksdb
StreamCompressionDecorator not right
[ https://issues.apache.org/jira/browse/FLINK-14159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xintong Song updated FLINK-14159:
---------------------------------
Fix Version/s: (was: 1.10.3)
1.10.4
> flink rocksdb StreamCompressionDecorator not right
> --------------------------------------------------
>
> Key: FLINK-14159
> URL: https://issues.apache.org/jira/browse/FLINK-14159
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 1.9.0
> Reporter: jackylau
> Priority: Major
> Fix For: 1.13.0, 1.11.4, 1.10.4
>
>
> I think the current flink rocksdb StreamCompressionDecorator is not right when calling method
> getCompressionDecorator(executionConfig) ,which defalut value is false.That is to say, current compression is none.But I find rocksdb using {{options.compression}} to specify the compression to use. By default it is Snappy, which you can see here [https://github.com/facebook/rocksdb/wiki/RocksDB-Tuning-Guide]. And I use rocksdb tool sstdump to find it is indeed snappy compression.
> So I think it should be return SnappyStreamCompressionDecorator.INSTANCE rather than getCompressionDecorator( executionConfig)
> Coud i commit a PR?
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