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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18255) Time-Delayed HBase Performance Degradation with Java 7
Date Thu, 29 Jun 2017 00:58:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067534#comment-16067534
] 

Vladimir Rodionov commented on HBASE-18255:
-------------------------------------------

[~enis], [~elserj] can you commit this patch?

> 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
>    Affects Versions: 1.3.1, 1.2.6, 1.1.11
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>             Fix For: 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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