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https://issues.apache.org/jira/browse/ZOOKEEPER-1670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757031#comment-13757031
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Flavio Junqueira commented on ZOOKEEPER-1670:
---------------------------------------------
Thanks for the feedback, Pat. I can really go either way, but given that this
has been here for a long time and I have given time for folks to dispute my +1,
I'd rather not revert it unless you argue that this will really break things
for our users. Is it acceptable to you that we keep it and discuss separately
what you think is the best way to deal with it?
> zookeeper should set a default value for SERVER_JVMFLAGS and CLIENT_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: Flavio Junqueira
> Fix For: 3.5.0, 3.4.6
>
> Attachments: ZOOKEEPER-1670.patch, ZOOKEEPER-1670.patch,
> ZOOKEEPER-1670.patch, ZOOKEEPER-1670.patch, ZOOKEEPER-1670.patch
>
>
> 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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