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Posted to issues@flink.apache.org by "Stefan Richter (JIRA)" <ji...@apache.org> on 2017/06/15 08:29:00 UTC

[jira] [Assigned] (FLINK-6773) Use compression (e.g. snappy) for full check/savepoints

     [ https://issues.apache.org/jira/browse/FLINK-6773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Richter reassigned FLINK-6773:
-------------------------------------

    Assignee: Stefan Richter

> Use compression (e.g. snappy) for full check/savepoints
> -------------------------------------------------------
>
>                 Key: FLINK-6773
>                 URL: https://issues.apache.org/jira/browse/FLINK-6773
>             Project: Flink
>          Issue Type: Improvement
>          Components: State Backends, Checkpointing
>            Reporter: Stefan Richter
>            Assignee: Stefan Richter
>
> We could use compression (e.g. snappy stream compression) to decrease the size of our full checkpoints and savepoints. From some initial experiments, I think there is great potential to achieve compression rates around 30-50%. Given those numbers, I think this is very low hanging fruit to implement.
> One point to consider in the implementation is that compression blocks should respect key-groups, i.e. typically it should make sense to compress per key-group.



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