[jira] [Assigned] (IGNITE-1221) Proper GridCacheContext cleanup

["Yakov Zhdanov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-1221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yakov Zhdanov reassigned IGNITE-1221:
-------------------------------------

    Assignee: Andrey Gura

> Proper GridCacheContext cleanup
> -------------------------------
>
>                 Key: IGNITE-1221
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1221
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>            Reporter: Denis Magda
>            Assignee: Andrey Gura
>            Priority: Critical
>             Fix For: ignite-1.4
>
>
> Sometimes when a cache is stopped and its corresponding {{GridCacheContext}} is cleaned up there are some threads exist that keep executing cache related operations.
> This may lead to deadlocks, hangs and other unpredictable results.
> Initial discussion on the dev list:
> http://mail-archives.apache.org/mod_mbox/incubator-ignite-dev/201508.mbox/browser
> Look for discussion "Fixed deadlock in GridDhtAtomicCache (Alex G. your review is needed)"
> As an example, the bug described and fixed as IGNITE-1189 was caused by already invalidated {{GridCacheContext}}.
> Moreover, Andrey Gura reports that he observes hangs in cache's read operations probably caused by the same reason.
> To reproduce try to do the following.
> Temporary comment out the following catch block in {{GridDhtAtomicCache.updateAllAsyncInternal0}}:
> {noformat}
>         catch (Exception e) {
>             // At least RuntimeException can be thrown by the code above when GridCacheContext is cleaned and there is
>             // an attempt to use cleaned resources.
>             U.error(log, "Unexpected exception during cache update", e);
>             res.addFailedKeys(keys, e);
>             completionCb.apply(req, res);
>             return;
>         }
> {noformat}
> Run {{IgniteCacheAtomicNodeRestartTest.testRestartWithPutTenNodesTwoBackups}} in a loop using TeamCity.



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