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From "Denis Magda (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-4374) Ignite should validate JVM and OS configuration and output warning in log
Date Sat, 11 Feb 2017 00:27:41 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15862070#comment-15862070
] 

Denis Magda commented on IGNITE-4374:
-------------------------------------

[~daradurvs], please send all the documentation changes for review to [~pgarg].

> Ignite should validate JVM and OS configuration and output warning in log
> -------------------------------------------------------------------------
>
>                 Key: IGNITE-4374
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4374
>             Project: Ignite
>          Issue Type: Improvement
>          Components: documentation
>            Reporter: Yakov Zhdanov
>            Assignee: Vyacheslav Daradur
>         Attachments: x32_not_optimized.png, x32_optimized.png, x64_not_optimized.png,
x64_optimized.png
>
>
> Currently we have GridPerformanceSuggestions that output suggestions to logs on Ignite
start on how Ignite can be improved.
> I suggest to go a little bit deeper and validate more configuration options and add validation
for JVM and OS settings.
> Ignite should output warning if:
> * GC logging is not enabled
> * MaxDirectMemorySize is not set (-XX:MaxDirectMemorySize)
> * Heap size is greater than 30,5G and JVM cannot use compressed oops
> * Any of the recommended OS setting described here https://apacheignite.readme.io/docs/jvm-and-system-tuning
are not properly set 



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