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From "Tyler Hobbs (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-9483) Document incompatibilities with -XX:+PerfDisableSharedMem
Date Tue, 26 May 2015 18:01:17 GMT
Tyler Hobbs created CASSANDRA-9483:
--------------------------------------

             Summary: Document incompatibilities with -XX:+PerfDisableSharedMem
                 Key: CASSANDRA-9483
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9483
             Project: Cassandra
          Issue Type: Task
          Components: Config, Documentation & website
            Reporter: Tyler Hobbs
            Assignee: Tyler Hobbs
            Priority: Minor
             Fix For: 3.0 beta 1


We recently discovered that [the Jolokia agent is incompatible with  the -XX:+PerfDisableSharedMem
JVM option|https://github.com/rhuss/jolokia/issues/198].  I assume that this may affect other
monitoring tools as well.

If we are going to leave this enabled by default, we should document the potential problems
with it.  A combination of a comment in {{cassandra-env.sh}} (and the Windows equivalent)
and a comment in NEWS.txt should suffice, I think.

If possible, it would be good to figure out what other tools are affected and also mention
them.



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