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From "Semen Boikov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-614) Race in preloading/unswapping
Date Thu, 23 Apr 2015 15:12:38 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Semen Boikov updated IGNITE-614:
--------------------------------
    Fix Version/s:     (was: sprint-4)
                   sprint-5

> Race in preloading/unswapping
> -----------------------------
>
>                 Key: IGNITE-614
>                 URL: https://issues.apache.org/jira/browse/IGNITE-614
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>            Reporter: Semen Boikov
>            Assignee: Semen Boikov
>            Priority: Critical
>             Fix For: sprint-5
>
>
> During unswap entry is removed from swap then unswap listener is notified, and this logic
in preload supply worker:
> - register unswap listener
> - iterater over heap
> - iterate over swap
> - remove unswap listener
> - iterate over entries recorded by unswap listener
> There is a race: entry is removed from unswap, listener is not notified yet, at this
moment supply worker removes unswap listener.
> These tests fail from time to time because entry can be missed during preloading:
> GridCacheSwapPreloadSelfTest.testSwapPartitionedMultithreaded
> GridCacheSwapPreloadSelfTest.testSwapReplicatedMultithreaded



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