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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2019/09/20 16:38:00 UTC
[jira] [Commented] (IMPALA-8958) OutOfMemoryError : Compressed
class space
[ https://issues.apache.org/jira/browse/IMPALA-8958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16934549#comment-16934549 ]
Tim Armstrong commented on IMPALA-8958:
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[~hqbhoho] I don't think we have enough details about your UDF or workload to even attempt to reproduce. You might need to try some JVM tuning - there appear to be some options that affect the space reserved for classes - https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/considerations.html - MaxMetaspaceSize and CompressedClassSpaceSize
It could possibly be another symptom of IMPALA-7668, but hard to know.
> OutOfMemoryError : Compressed class space
> -----------------------------------------
>
> Key: IMPALA-8958
> URL: https://issues.apache.org/jira/browse/IMPALA-8958
> Project: IMPALA
> Issue Type: Bug
> Affects Versions: Impala 2.11.0
> Reporter: hqbhoho
> Priority: Major
> Attachments: f39df03636aab574edf387906cfd5f8.png
>
>
> when I use impala with hive UDF，
> impala-shell -k -i worker01 , I can use UDF;
> impala-shell -k -i worker02 , I can't use UDF，and will occur OutOfMemoryError : Compressed class space;
> After I restart impalad which is in worker02, It will be ok!
> But after a while , I also can't use UDF in worker02 again.
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