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https://issues.apache.org/jira/browse/HDFS-883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HDFS-883 started by Steve Loughran.

> Datanode shutdown should log problems with Storage.unlockAll()
> --------------------------------------------------------------
>
>                 Key: HDFS-883
>                 URL: https://issues.apache.org/jira/browse/HDFS-883
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>    Affects Versions: 0.22.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>
> When shutting down, Datanode calls {{Storage.unlockAll()}}, but discards any 
> exceptions thrown in the process.
> These exceptions could be useful in diagnosing problems, and should be logged.

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