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Posted to dev@flink.apache.org by "None none (Jira)" <ji...@apache.org> on 2020/02/25 13:22:00 UTC

[jira] [Created] (FLINK-16278) Document new settings for MaxMetaSpace in 1.10

None none created FLINK-16278:
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             Summary: Document new settings for MaxMetaSpace in 1.10
                 Key: FLINK-16278
                 URL: https://issues.apache.org/jira/browse/FLINK-16278
             Project: Flink
          Issue Type: Improvement
          Components: Documentation
    Affects Versions: 1.10.0
            Reporter: None none


I was running Flink 1.8 and decided to upgrade to 1.10. I started to get OutOfMemory: Metaspace on Task nodes and they would shutdown.

Deploying 3-4 jobs was ok, deploying 5th job, the task manager would shutdown after a couple of minutes.

Some investigation shows, that the Flink startup scripts set this to 100m.

Setting taskmanager.memory.jvm-metaspace.size: 256m seems to alleviate the problem. Looking at the docs, this setting seems new. But it is not documented anywhere that the default is now 100m

I would like to add the exact same setup/jobs on Flink 1.8 was working fine.

Here is a conversation on the mailing list as well: [https://mail.google.com/mail/u/1/#label/Apache+Flink/KtbxLrjNZhsRGptKFCvHHlTWSdxbqKXHBB]

I think the upgrade/migration docs should indicate this and also maybe the default size.



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