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https://issues.apache.org/jira/browse/HIVE-11149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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WangMeng updated HIVE-11149:
----------------------------
    Summary: Fix issue with HashMap in PerfLogger.java hangs   (was: Fix issue 
with Thread unsafe Class  HashMap in PerfLogger.java  hangs  in  Multi-thread 
environment)

> Fix issue with 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: 1.2.0
>            Reporter: WangMeng
>            Assignee: WangMeng
>         Attachments: HIVE-11149.01.patch, HIVE-11149.02.patch, 
> HIVE-11149.03.patch
>
>
> In  Multi-thread environment,  the Thread unsafe Class HashMap in 
> PerfLogger.java  will  casue massive Java Processes hang  and cost  large 
> amounts of unnecessary CPU and Memory.



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