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From "Andrey Kuznetsov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-7499) DataRegionMetricsImpl#getPageSize returns ZERO for system data regions
Date Thu, 05 Apr 2018 11:59:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-7499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16426798#comment-16426798
] 

Andrey Kuznetsov commented on IGNITE-7499:
------------------------------------------

Unlike regular data regions, system data region configuration is hardcoded, and metrics are
disabled there. [~kuaw26], do we have real reasons to query metrics for system data region?
Depending on the answer to this question we can choose the way of fixing the issue.

> DataRegionMetricsImpl#getPageSize returns ZERO for system data regions
> ----------------------------------------------------------------------
>
>                 Key: IGNITE-7499
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7499
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>            Reporter: Alexey Kuznetsov
>            Assignee: Andrey Kuznetsov
>            Priority: Major
>             Fix For: 2.5
>
>
> Working on IGNITE-7492 I found that DataRegionMetricsImpl#getPageSize returns ZERO
for system data regions.
> Meanwhile there is also org.apache.ignite.internal.pagemem.PageMemory#systemPageSize
method.
> That looks a bit strange, why we need PageSize and SystemPageSize ?
>  



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