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https://issues.apache.org/jira/browse/KYLIN-4333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013388#comment-17013388
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ASF GitHub Bot commented on KYLIN-4333:
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wangxiaojing123 commented on pull request #1050: KYLIN-4333 Fix Build Server OOM
URL: https://github.com/apache/kylin/pull/1050
- issue link :https://issues.apache.org/jira/browse/KYLIN-4333
- Internalthreadlocal is not suitable for creating a large number of
instances . Otherwise, memory leakage will occur, leading to frequent full GC
and even OOM.
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> Build Server OOM
> ----------------
>
> Key: KYLIN-4333
> URL: https://issues.apache.org/jira/browse/KYLIN-4333
> Project: Kylin
> Issue Type: Improvement
> Components: Job Engine, Query Engine
> Affects Versions: v3.0.0, v3.0.0-beta, v3.0.0-alpha2
> Reporter: wangxiaojing
> Assignee: wangxiaojing
> Priority: Major
>
> Kylin 3 frequently appears full GC or even OOM, and build server appears OOM
> almost every 4 days. Query server also has full GC, but it appears less
> frequently than build server.
> We have about 2000 cubes on this Kylin cluster (3 build servers and 3 query
> servers , 32g memory per server)。
> Through mat analysis of dump, there may be a memory leak.
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