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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8961) Investigate lock issue in o.a.h.hdfs.shortcircuit.DfsClientShmManager.EndpointShmManager
Date Thu, 27 Aug 2015 01:47:48 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mingliang Liu updated HDFS-8961:
--------------------------------
    Target Version/s: 2.8.0
              Status: Patch Available  (was: Open)

> Investigate lock issue in o.a.h.hdfs.shortcircuit.DfsClientShmManager.EndpointShmManager
> ----------------------------------------------------------------------------------------
>
>                 Key: HDFS-8961
>                 URL: https://issues.apache.org/jira/browse/HDFS-8961
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Haohui Mai
>            Assignee: Mingliang Liu
>         Attachments: HDFS-8961.000.patch
>
>
> There are two clauses in {{hadoop-hdfs}} to filter out the findbugs warnings in {{org.apache.hadoop.hdfs.shortcircuit.DfsClientShmManager$EndpointShmManager}}:
> {code}
>     <Match>
>       <Class name="org.apache.hadoop.hdfs.shortcircuit.DfsClientShmManager$EndpointShmManager"
/>
>       <Method name="allocSlot" />
>       <Bug pattern="UL_UNRELEASED_LOCK_EXCEPTION_PATH" />
>     </Match>
>     <Match>
>       <Class name="org.apache.hadoop.hdfs.shortcircuit.DfsClientShmManager$EndpointShmManager"
/>
>       <Method name="allocSlot" />
>       <Bug pattern="UL_UNRELEASED_LOCK" />
>     </Match>
> {code}
> These two warnings show up in the Jenkins run as these classes are moved into the {{hadoop-hdfs-client}}
module. We either need to fix the code or move these clauses to the {{hadoop-hdfs-client}}
module.



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