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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2018/10/02 13:33:00 UTC

[jira] [Assigned] (IGNITE-9722) MVCC: Test CacheMvccTransactionTest.testMvccCoordinatorChangeSimple fails.

     [ https://issues.apache.org/jira/browse/IGNITE-9722?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov reassigned IGNITE-9722:
---------------------------------------

    Assignee: Vladimir Ozerov

> MVCC: Test CacheMvccTransactionTest.testMvccCoordinatorChangeSimple fails.
> --------------------------------------------------------------------------
>
>                 Key: IGNITE-9722
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9722
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache, mvcc
>            Reporter: Andrew Mashenkov
>            Assignee: Vladimir Ozerov
>            Priority: Critical
>             Fix For: 2.7
>
>
> The test make transactional putAll() and then check data with Scan query and getAll().
> ScanQuery can miss some results on unstable topology which is expected as it doesn't lock topology.
> But getAll() can unexpectedly return stale results.
> To reproduce the issue, one can change read mode SCAN->GET (passed to checkAndGetAll() call) in checkPutGet() method. 
>  
> It looks like rebalance can overwrite local backup entries or remap is broken and we read local partition in moving state. Disabling fastLocGet in GridPartitionedGetFuture.map() resolves the issue.
>  



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