[jira] [Assigned] (IGNITE-4374) Ignite should validate JVM and OS configuration and output warning in log

["VYACHESLAV DARADUR (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

VYACHESLAV DARADUR reassigned IGNITE-4374:
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    Assignee: VYACHESLAV DARADUR

> 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
>
> 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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