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https://issues.apache.org/jira/browse/HIVE-11149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14955809#comment-14955809
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Sushanth Sowmyan commented on HIVE-11149:
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As an update, I do not think that we should be backporting HIVE-11891, since it
refactors PerfLogger from hive-exec to hive-common, which is a cross-jar change
that I don't think we should make on backport maint lines. However, this patch
is simple enough that we could create a 1.2 version of this patch as well which
will affect PerfLogger in hive-exec as it used to be in 1.2.
> Fix issue with sometimes HashMap in PerfLogger.java hangs
> ----------------------------------------------------------
>
> Key: HIVE-11149
> URL: https://issues.apache.org/jira/browse/HIVE-11149
> Project: Hive
> Issue Type: Bug
> Components: Logging
> Affects Versions: 1.2.1
> Reporter: WangMeng
> Assignee: WangMeng
> Fix For: 2.0.0
>
> Attachments: HIVE-11149.01.patch, HIVE-11149.02.patch,
> HIVE-11149.03.patch, HIVE-11149.04.patch
>
>
> In Multi-thread environment, sometimes the HashMap in PerfLogger.java
> will casue massive Java Processes hang and cost large amounts of
> unnecessary CPU and Memory.
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