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Posted to issues@flink.apache.org by "Lyn Zhang (Jira)" <ji...@apache.org> on 2022/01/19 02:57:00 UTC
[jira] [Updated] (FLINK-25695) TemporalJoin cause state leak in some case

     [ https://issues.apache.org/jira/browse/FLINK-25695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lyn Zhang updated FLINK-25695:
------------------------------
    Description: 
Last year, I reported the similar bug of TemporalJoin cause state leak.

Detail: [https://github.com/apache/flink/pull/14916]

Recently, I found the fix code can reduce the the leak size but can not resolve it completely.

The code of line 213 cause that and The right fix is to invoke cleanUp() method.

The [https://github.com/apache/flink/pull/14916]  We discussed that if the code is running on line 213, That meaning Left State, Right State, registeredTimerState is empty, actually the  Left State and Right State value(MapState) is empty but the key is still be in state, So invoke state.clear() is necessary. 

  was:
Last year, I report the similar bug of TemporalJoin cause state leak.

Detail: [https://github.com/apache/flink/pull/14916]

Recently, I found the fix code can reduce the the leak size but can not resolve it completely.

The code of line 213 cause that and The right fix is to invoke cleanUp() method.

The [https://github.com/apache/flink/pull/14916]  We discussed that if the code is running on line 213, That meaning Left State, Right State, registeredTimerState is empty, actually the  Left State and Right State value(MapState) is empty but the key is still be in state, So invoke state.clear() is necessary. 


> TemporalJoin cause state leak in some case
> ------------------------------------------
>
>                 Key: FLINK-25695
>                 URL: https://issues.apache.org/jira/browse/FLINK-25695
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Runtime
>    Affects Versions: 1.14.3
>            Reporter: Lyn Zhang
>            Priority: Major
>
> Last year, I reported the similar bug of TemporalJoin cause state leak.
> Detail: [https://github.com/apache/flink/pull/14916]
> Recently, I found the fix code can reduce the the leak size but can not resolve it completely.
> The code of line 213 cause that and The right fix is to invoke cleanUp() method.
> The [https://github.com/apache/flink/pull/14916]  We discussed that if the code is running on line 213, That meaning Left State, Right State, registeredTimerState is empty, actually the  Left State and Right State value(MapState) is empty but the key is still be in state, So invoke state.clear() is necessary. 



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