[jira] [Commented] (IGNITE-6521) Review default JVM options for better performance

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-6521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16205640#comment-16205640 ] 

ASF GitHub Bot commented on IGNITE-6521:
----------------------------------------

GitHub user akuramshingg opened a pull request:

    https://github.com/apache/ignite/pull/2858

    IGNITE-6521 Update JVM options (default and recommendations) for better performance

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gridgain/apache-ignite ignite-6521

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/ignite/pull/2858.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2858
    
----
commit 8f2490fd64f3a0935b7633c800d804e3a2c53940
Author: Alexandr Kuramshin <ei...@gmail.com>
Date:   2017-10-16T09:45:13Z

    IGNITE-6521 Update JVM options (default and recommendations) for better performance

----


> Review default JVM options for better performance
> -------------------------------------------------
>
>                 Key: IGNITE-6521
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6521
>             Project: Ignite
>          Issue Type: Improvement
>          Components: general, visor
>    Affects Versions: 2.1
>            Reporter: Alexandr Kuramshin
>            Assignee: Alexandr Kuramshin
>
> Non-optimal recommendations are present in ignite startup scrips
> {noformat}
> ::
> :: Uncomment the following GC settings if you see spikes in your throughput due to Garbage Collection.
> ::
> :: set JVM_OPTS=%JVM_OPTS% -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+UseTLAB -XX:NewSize=128m -XX:MaxNewSize=128m
> :: set JVM_OPTS=%JVM_OPTS% -XX:MaxTenuringThreshold=0 -XX:SurvivorRatio=1024 -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=60
> {noformat}
> Some utilities (like Visor) are hanged up in continuous GCs when connected to large clusters (above one hundred nodes). Even after using large heap (about 32 Gb).
> I'd like to propose to remove this lines and modify default JVM_OPTS as follows
> {noformat}
> set JVM_OPTS=-Xms1g -Xmx8g -XX:+UseG1GC -server -XX:+AggressiveOpts -XX:MaxPermSize=256m
> {noformat}



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