[jira] Commented: (HADOOP-2067) multiple close() failing in Hadoop 0.14

["Steve Loughran (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-2067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12668025#action_12668025 ] 

Steve Loughran commented on HADOOP-2067:
----------------------------------------

The current behaviour is at odds with the java.io.Closeable interface, which states that " If the stream is already closed then invoking this 
method has no effect. ". This is the interface that DfsClient.close() implements. 

> multiple close() failing in Hadoop 0.14
> ---------------------------------------
>
>                 Key: HADOOP-2067
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2067
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.14.3
>            Reporter: Lohit Vijayarenu
>         Attachments: stack_trace_13_and_14.txt
>
>
> It looks like multiple close() calls, while reading files from DFS is failing in hadoop 0.14. This was somehow not caught in hadoop 0.13.
> The use case was to open a file on DFS like shown below
> <code>
>  FSDataInputStream
> 	fSDataInputStream =
> 	fileSystem.open(new Path(propertyFileName));
>       Properties subProperties =
> 	new Properties();
>       subProperties.
> 	loadFromXML(fSDataInputStream);
>       fSDataInputStream.
> 	close();
> </code>
> This failed with an IOException
> <exception>
> EXCEPTIN RAISED, which is java.io.IOException: Stream closed
> java.io.IOException: Stream closed
> </exception>
> The stack trace shows its being closed twice. While this used to work in hadoop 0.13 which used to hide this.
> Attached with this JIRA is a text file which has stack trace for both hadoop 0.13 and hadoop 0.14.
> How should this be handled from a users point of view? 
> Thanks

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