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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13264) Hadoop HDFS - DFSOutputStream close method fails to clean up resources in case no hdfs datanodes are accessible
Date Wed, 15 Jun 2016 15:40:09 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15331932#comment-15331932
] 

Kihwal Lee commented on HADOOP-13264:
-------------------------------------

Since it is closely related to HDFS-9812, [~linyiqun], can you take a look at this?  

> Hadoop HDFS - DFSOutputStream close method fails to clean up resources in case no hdfs
datanodes are accessible 
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-13264
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13264
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.7.2
>            Reporter: Seb Mo
>
> Using:
> hadoop-hdfs\2.7.2\hadoop-hdfs-2.7.2-sources.jar!\org\apache\hadoop\hdfs\DFSOutputStream.java
> Close method fails when the client can't connect to any data nodes. When re-using the
same DistributedFileSystem in the same JVM, if all the datanodes can't be accessed, then this
causes a memory leak as the DFSClient#filesBeingWritten map is never cleared after that.
> See test program provided by [~sebyonthenet] in comments below.



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