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From "Dmitriy Pavlov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-7380) Avoid updating PagePartitionCounters in case all counters were not modified
Date Thu, 11 Jan 2018 13:48:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-7380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16322223#comment-16322223
] 

Dmitriy Pavlov commented on IGNITE-7380:
----------------------------------------

Hi [~ivan.glukos], thank you for reviewing changes!

I've updated PR. magic no fixed, test IgniteCheckpointDirtyPagesForLowLoadTest was created.

It fails in case too much pages marker dirty
 

> Avoid updating PagePartitionCounters in case all counters were not modified
> ---------------------------------------------------------------------------
>
>                 Key: IGNITE-7380
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7380
>             Project: Ignite
>          Issue Type: Improvement
>          Components: persistence
>            Reporter: Dmitriy Pavlov
>            Assignee: Dmitriy Pavlov
>            Priority: Critical
>
> PagePartitionCountersIO ignores actual values of counters and marks pages dirty even
if partition has no counters update.
> This leads to  PAGE_RECORD creation for pages from PagePartitionCountersIO
> and as result with pages from TrackingPageIO.
> These modificaiton may be skipped if counters are checked for equality before storing
data.



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