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Posted to dev@zookeeper.apache.org by "Arpit Gupta (JIRA)" <ji...@apache.org> on 2013/03/15 22:50:14 UTC
[jira] [Updated] (ZOOKEEPER-1670) zookeeper should set a default
value for SERVER_JVMFLAGS so that memory usage is controlled
[ https://issues.apache.org/jira/browse/ZOOKEEPER-1670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arpit Gupta updated ZOOKEEPER-1670:
-----------------------------------
Description:
We noticed this with jdk 1.6 where if no heap size is set the process takes up to 1/4 of mem available on the machine.
More info http://stackoverflow.com/questions/3428251/is-there-a-default-xmx-setting-for-java-1-5
You can run the following command to see what are the defaults for your machine
{code}
java -XX:+PrintFlagsFinal -version 2>&1 | grep -i -E 'heapsize|permsize|version'
{code}
And we noticed on two different class of machines that this was 1/4th of total memory on the machine.
was:
We noticed this jdk 1.6 where if no heap size is set the process takes up to 1/4 of mem available in the machine.
More info http://stackoverflow.com/questions/3428251/is-there-a-default-xmx-setting-for-java-1-5
You can run the following command to see what are the defaults for your machine
{code}
java -XX:+PrintFlagsFinal -version 2>&1 | grep -i -E 'heapsize|permsize|version'
{code}
And we noticed on two different class of machines that this was 1/4th of total memory on the machine.
> zookeeper should set a default value for SERVER_JVMFLAGS so that memory usage is controlled
> -------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1670
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1670
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.4.5
> Reporter: Arpit Gupta
> Assignee: Arpit Gupta
> Fix For: 3.4.6
>
>
> We noticed this with jdk 1.6 where if no heap size is set the process takes up to 1/4 of mem available on the machine.
> More info http://stackoverflow.com/questions/3428251/is-there-a-default-xmx-setting-for-java-1-5
> You can run the following command to see what are the defaults for your machine
> {code}
> java -XX:+PrintFlagsFinal -version 2>&1 | grep -i -E 'heapsize|permsize|version'
> {code}
> And we noticed on two different class of machines that this was 1/4th of total memory on the machine.
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