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Posted to dev@phoenix.apache.org by "Samarth Jain (JIRA)" <ji...@apache.org> on 2016/12/21 23:13:58 UTC

[jira] [Assigned] (PHOENIX-3535) Fix race condition in ConnectionQueryServicesImpl#acquireUpgradeMutex

     [ https://issues.apache.org/jira/browse/PHOENIX-3535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Samarth Jain reassigned PHOENIX-3535:
-------------------------------------

    Assignee: Samarth Jain

> Fix race condition in ConnectionQueryServicesImpl#acquireUpgradeMutex
> ---------------------------------------------------------------------
>
>                 Key: PHOENIX-3535
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3535
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Samarth Jain
>            Assignee: Samarth Jain
>             Fix For: 4.9.1, 4.10.0
>
>         Attachments: PHOENIX-3535_v1.patch, PHOENIX-3535_v2.patch
>
>
> Conversation on HBASE-17300 revealed that concurrently creating a table, checking for its existence and performing an operation on it is fraught with races. This race condition is causing UpgradeIT#testConcurrentUpgradeThrowsUpgradeInProgressException to fail. We need to figure out a way for not creating/checking existence of the SYSTEM.MUTEX table.



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