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Posted to issues@beam.apache.org by "Maximilian Michels (JIRA)" <ji...@apache.org> on 2019/01/22 01:24:00 UTC

[jira] [Resolved] (BEAM-6460) Jackson Cache may hold on to Classloader after pipeline restart

     [ https://issues.apache.org/jira/browse/BEAM-6460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maximilian Michels resolved BEAM-6460.
--------------------------------------
       Resolution: Workaround
    Fix Version/s: 2.11.0

> Jackson Cache may hold on to Classloader after pipeline restart
> ---------------------------------------------------------------
>
>                 Key: BEAM-6460
>                 URL: https://issues.apache.org/jira/browse/BEAM-6460
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-flink
>    Affects Versions: 2.7.0
>            Reporter: Maximilian Michels
>            Assignee: Maximilian Michels
>            Priority: Blocker
>             Fix For: 2.10.0, 2.11.0
>
>          Time Spent: 2h 10m
>  Remaining Estimate: 0h
>
> It looks like Jackson has an internal cache which may continue to hold the Flink application classloader through its {{TypeFactory}} class. When the pipeline is restarted due to a failure, a new classloader is created which can result in too many classes being loaded.
> Reported on the user mailing list: https://lists.apache.org/thread.html/e201891684ef3dcffce48d20d1f9be0e19fc2294334362cc7092c0ff@%3Cuser.beam.apache.org%3E



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