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From "xu hai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11149) Fix issue with Thread unsafe Class HashMap in PerfLogger.java hangs in Multi-thread environment
Date Wed, 02 Sep 2015 11:14:45 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

xu hai updated HIVE-11149:
--------------------------
    Attachment: HIVE-11149.02.patch.txt

Hi all, I uploaded a new patch for this issue.
Please check it. Thanks.

> Fix issue with Thread unsafe Class  HashMap in PerfLogger.java  hangs  in  Multi-thread
environment
> ---------------------------------------------------------------------------------------------------
>
>                 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.txt
>
>
> 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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