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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/03/01 06:38:00 UTC

[jira] [Updated] (FLINK-26347) Should use Flink system Classloader (AppClassloader) when deserializing RPC message

     [ https://issues.apache.org/jira/browse/FLINK-26347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-26347:
-----------------------------------
    Labels: pull-request-available  (was: )

> Should use Flink system Classloader (AppClassloader) when deserializing RPC message
> -----------------------------------------------------------------------------------
>
>                 Key: FLINK-26347
>                 URL: https://issues.apache.org/jira/browse/FLINK-26347
>             Project: Flink
>          Issue Type: Bug
>    Affects Versions: 1.15.0
>            Reporter: Yingjie Cao
>            Assignee: Yangze Guo
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 1.15.0
>
>
> FLINK-25742 removed the redundant serialization of RPC invocation at Flink side. However, by accident, it changes the class loading behavior. Before FLINK-25742, Flink system Classloader is used to load RPC message class, but after FLINK-25742, the RpcSystem Classloader (its parent Classloader is not Flink system Classloader) is used which can cause ClassNotFoundException. I encountered this exception when trying to run flink-remote-shuffle on the latest Flink 1.15-SNAPSHOT, the remote shuffle class (shuffle descriptor class) can not be found even when the corresponding jar file is in Flink lib/ directory.



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