[jira] [Updated] (HDFS-4855) DFSOutputStream reference should be cleared from DFSClient#filesBeingWritten if the file closure fails.

["Konstantin Boudnik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-4855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Boudnik updated HDFS-4855:
-------------------------------------

    Fix Version/s:     (was: 2.0.5-alpha)
    
> DFSOutputStream reference should be cleared from DFSClient#filesBeingWritten if the file closure fails.
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4855
>                 URL: https://issues.apache.org/jira/browse/HDFS-4855
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.0.4-alpha
>            Reporter: Vinay
>            Assignee: Vinay
>
> If the file closure fails due to some exception, then {{DFSOutputStream}} reference should be removed from the {{DFSClient#filesBeingWritten}}.
> Which is useless to keep and also memory consuming.
> If the same client is being used for long time,, then there is a chance of client getting OOM due to this.
> fix would be simple. 
> Just cover complete {{DFSOutputStream#close()}} under try-finally and move {{dfsClient.endFileLease(src);}} to finally block.
> Any thoughts..?

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