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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18255) Time-Delayed HBase Performance Degradation with Java 7
Date Fri, 11 Aug 2017 02:43:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122735#comment-16122735
] 

Hudson commented on HBASE-18255:
--------------------------------

SUCCESS: Integrated in Jenkins build HBase-1.2-IT #925 (See [https://builds.apache.org/job/HBase-1.2-IT/925/])
HBASE-18479 should apply HBASE-18255 to HBASE_MASTER_OPTS too (tedyu: rev 9f809748d72b39489f202a56aba107cf7386f30c)
* (edit) conf/hbase-env.sh
* (edit) conf/hbase-env.cmd


> Time-Delayed HBase Performance Degradation with Java 7
> ------------------------------------------------------
>
>                 Key: HBASE-18255
>                 URL: https://issues.apache.org/jira/browse/HBASE-18255
>             Project: HBase
>          Issue Type: Bug
>          Components: Performance
>    Affects Versions: 1.3.1, 1.2.6, 1.1.11
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>            Priority: Critical
>              Labels: jdk7
>             Fix For: 1.4.0, 1.3.2, 1.2.7, 1.1.12
>
>         Attachments: HBASE-18255-branch-1.x.v1.patch
>
>
> The good summary of the issue and provided resolution can be found in this article:
> https://community.hortonworks.com/articles/105802/time-delayed-hbase-performance-degradation-with-ja.html
> In a few words, due to internal JVM 7 bug (which has been addressed only in Java 8),
HotSpot code cache can become full and after that ALL JIT compilations get suspended indefinitely.
 The default value for code cache size in JVM 7 is quite low: 48MB. It is recommended to increase
this value at least to 256MB (default in JVM 8).
> This BUG affects only 1.x 



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