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From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-9483) Document incompatibilities with -XX:+PerfDisableSharedMem
Date Fri, 31 Jul 2015 18:44:04 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-9483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

T Jake Luciani updated CASSANDRA-9483:
--------------------------------------
    Attachment: news_update.txt

Added some words in NEWS.TXT along with other JVM related news.

> 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: T Jake Luciani
>            Priority: Minor
>             Fix For: 3.0 beta 1
>
>         Attachments: news_update.txt
>
>
> 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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