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From "Uma Maheswara Rao G (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5789) Some of snapshot APIs missing checkOperation double check in fsn
Date Thu, 23 Jan 2014 16:40:44 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uma Maheswara Rao G updated HDFS-5789:
--------------------------------------

    Status: Patch Available  (was: Open)

> Some of snapshot APIs missing checkOperation double check in fsn
> ----------------------------------------------------------------
>
>                 Key: HDFS-5789
>                 URL: https://issues.apache.org/jira/browse/HDFS-5789
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>         Attachments: HDFS-5789.patch
>
>
> HDFS-4591 introduced double checked for HA state while taking fsn lock.
> checkoperation made before actually taking lock and after the lock again.
> This pattern missed in some of the snapshot APIs and cache management related APIs.



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