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https://issues.apache.org/jira/browse/IGNITE-12801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17111957#comment-17111957
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Nikolay Izhikov commented on IGNITE-12801:
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Cherry-picked to 2.8.1
> Possible extra page release when throttling and checkpoint thread store its
> concurrently
> ----------------------------------------------------------------------------------------
>
> Key: IGNITE-12801
> URL: https://issues.apache.org/jira/browse/IGNITE-12801
> Project: Ignite
> Issue Type: Bug
> Reporter: Anton Kalashnikov
> Assignee: Anton Kalashnikov
> Priority: Major
> Fix For: 2.8.1
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> * User thread acquire page on write release
> * Checkpoint thread sees that page was acquired
> * Throttling thread sees that page was acquired
> * Checkpoint thread saves page to disk and releases the page
> * Throttling thread understand that the page was already saved but
> nonetheless release this page again. - this is not ok.
> {noformat}
> java.lang.AssertionError: null
> at
> org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.copyPageForCheckpoint(PageMemoryImpl.java:1181)
> at
> org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.checkpointWritePage(PageMemoryImpl.java:1160)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$WriteCheckpointPages.writePages(GridCacheDatabaseSharedManager.java:4868)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$WriteCheckpointPages.run(GridCacheDatabaseSharedManager.java:4792)
> ... 3 common frames omitted
> {noformat}
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