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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2016/04/25 10:22:12 UTC

[jira] [Resolved] (FLINK-3740) Session Window State is Not Checkpointed

     [ https://issues.apache.org/jira/browse/FLINK-3740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aljoscha Krettek resolved FLINK-3740.
-------------------------------------
    Resolution: Fixed

Fixed in https://github.com/apache/flink/commit/f2f5bd5bed2f737b8418be09359691e899462184

> Session Window State is Not Checkpointed
> ----------------------------------------
>
>                 Key: FLINK-3740
>                 URL: https://issues.apache.org/jira/browse/FLINK-3740
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>
> The merging window state in the {{WindowOperator}} is not checkpointed. This means that programs containing session windows will fail upon restore after a failure.
> I propose adding a simulated snapshot/restore cycle to the tests in {{WindowOperatorTest}} to catch these problems in the future.



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