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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (CASSANDRA-4447) enable jamm for OpenJDK >= 1.6.0.23
Date Wed, 25 Jul 2012 17:25:35 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Williams reassigned CASSANDRA-4447:
-------------------------------------------

    Assignee: Brandon Williams
    
> enable jamm for OpenJDK >= 1.6.0.23
> -----------------------------------
>
>                 Key: CASSANDRA-4447
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4447
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Packaging
>         Environment: openjdk
>            Reporter: Ilya Shipitsin
>            Assignee: Brandon Williams
>            Priority: Trivial
>             Fix For: 1.1.3
>
>         Attachments: 4447.txt
>
>
> we tested jamm with OpenJDK, it works well starting at 1.6.0.23, so I suggest
> --- cassandra-env.sh.dist       2012-07-19 12:24:44.938886154 +0600
> +++ cassandra-env.sh    2012-07-19 12:28:34.913886847 +0600
> @@ -119,8 +119,10 @@
>  
>  # add the jamm javaagent
>  check_openjdk=`"${JAVA:-java}" -version 2>&1 | awk '{if (NR == 2) {print $1}}'`
> -if [ "$check_openjdk" != "OpenJDK" ]
> +check_openjdk_is_good_for_jamm=`"${JAVA:-java}" -version 2>&1 | awk -F "_|\""
'/1\.6\.0/ && $3 < 23 {print "bad" }'`
> +if [ "$check_openjdk" = "OpenJDK" ] && [ "$check_openjdk_is_good_for_jamm" =
"bad" ]
>  then
> +else 
>      JVM_OPTS="$JVM_OPTS -javaagent:$CASSANDRA_HOME/lib/jamm-0.2.5.jar"
>  fi

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