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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2013/09/11 16:37:52 UTC
[jira] [Resolved] (CASSANDRA-6006) Value of JVM_OPTS is partially
lost when enabling JEMallocAllocator in cassandra-env.sh
[ https://issues.apache.org/jira/browse/CASSANDRA-6006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams resolved CASSANDRA-6006.
-----------------------------------------
Resolution: Fixed
Fix Version/s: 2.0.1
Thanks, done in 1ae996d38259ad6d18fef7344b745eba8af56a4d
> Value of JVM_OPTS is partially lost when enabling JEMallocAllocator in cassandra-env.sh
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6006
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6006
> Project: Cassandra
> Issue Type: Bug
> Components: Config
> Environment: Linux, cassandra 2.0.0
> Reporter: Nikolai Grigoriev
> Priority: Minor
> Fix For: 2.0.1
>
>
> In conf/cassandra-env.sh I see this:
> {code}
> # Configure the following for JEMallocAllocator and if jemalloc is not available in the system
> # library path (Example: /usr/local/lib/). Usually "make install" will do the right thing.
> # export LD_LIBRARY_PATH=<JEMALLOC_HOME>/lib/
> # JVM_OPTS="-Djava.library.path=<JEMALLOC_HOME>/lib/"
> {code}
> When I have enabled JEMalloc I have noticed that Cassandra complained about JAMM agent not being configured. Then I have realized that a bunch of JVM settings do not get passed to JVM, like heap size etc. This is because here the new argument replaces the previous value of JVM_OPTS instead of being added to it.
> Here is the diff:
> {code}
> *** cassandra-env.sh.orig 2013-08-28 13:07:53.000000000 +0000
> --- cassandra-env.sh 2013-09-11 13:25:12.904640141 +0000
> ***************
> *** 227,233 ****
> # Configure the following for JEMallocAllocator and if jemalloc is not available in the system
> # library path (Example: /usr/local/lib/). Usually "make install" will do the right thing.
> # export LD_LIBRARY_PATH=<JEMALLOC_HOME>/lib/
> ! # JVM_OPTS="-Djava.library.path=<JEMALLOC_HOME>/lib/"
> # uncomment to have Cassandra JVM listen for remote debuggers/profilers on port 1414
> # JVM_OPTS="$JVM_OPTS -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1414"
> --- 227,233 ----
> # Configure the following for JEMallocAllocator and if jemalloc is not available in the system
> # library path (Example: /usr/local/lib/). Usually "make install" will do the right thing.
> # export LD_LIBRARY_PATH=<JEMALLOC_HOME>/lib/
> ! # JVM_OPTS="$JVM_OPTS -Djava.library.path=<JEMALLOC_HOME>/lib/"
> # uncomment to have Cassandra JVM listen for remote debuggers/profilers on port 1414
> # JVM_OPTS="$JVM_OPTS -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1414"
> {code}
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