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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4754) Make number of retained checkpoints user configurable
Date Thu, 16 Mar 2017 10:19:41 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927778#comment-15927778
] 

ASF GitHub Bot commented on FLINK-4754:
---------------------------------------

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/3374
  
    @tony810430 I am adding small followups. Most notably, I renamed the config parameter
to `state.checkpoints.num-retained`. In my experience, shorter parameter names are better
(less typos, easier to remember for users, etc...)
    
    Please comment if you have objections.


> Make number of retained checkpoints user configurable
> -----------------------------------------------------
>
>                 Key: FLINK-4754
>                 URL: https://issues.apache.org/jira/browse/FLINK-4754
>             Project: Flink
>          Issue Type: Improvement
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.1.2
>            Reporter: Ufuk Celebi
>            Assignee: Wei-Che Wei
>
> The number of retained successful checkpoints is fixed to 1. Expose this setting via
the {{CheckpointConfig}} instead of having it fixed as a static field in the {{CheckpointRecoveryFactory}}.
> With the current state of things, this would require to set this value lazily in the
checkpoint store implementations instead of setting it when creating the store.



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