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Posted to issues@flink.apache.org by "Dan Zou (Jira)" <ji...@apache.org> on 2024/01/04 12:16:00 UTC

[jira] [Created] (FLINK-33990) Use default classloader in TaskManager when there are no user jars for job

Dan Zou created FLINK-33990:
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             Summary: Use default classloader in TaskManager when there are no user jars for job
                 Key: FLINK-33990
                 URL: https://issues.apache.org/jira/browse/FLINK-33990
             Project: Flink
          Issue Type: Sub-task
            Reporter: Dan Zou


TaskManager will create a new class loader for each flink job even when it has no user jars, which may cause metaspace increasing. Flink can use system classloader for the jobs without jars. A similar optimization has been made in JM, it make sense to optimize it in TM.



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