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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18255) Time-Delayed HBase Performance Degradation with Java 7
Date Thu, 06 Jul 2017 05:24:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Busbey updated HBASE-18255:
--------------------------------
    Labels: jdk7  (was: )

> 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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