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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18255) Time-Delayed HBase Performance Degradation with Java 7
Date Thu, 22 Jun 2017 00:00:44 GMT
Vladimir Rodionov created HBASE-18255:
-----------------------------------------

             Summary: 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
            Reporter: Vladimir Rodionov
            Assignee: Vladimir Rodionov


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).



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