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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11012) hadoop fs -text of zero-length file causes EOFException
Date Thu, 28 Aug 2014 21:04:11 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Payne updated HADOOP-11012:
--------------------------------

    Attachment: HDFS-6915.201408282053.txt

[~daryn], thank you for reviewing this patch. using {{fsshell.run}} might not be simple since
that would entail creating a new output stream, setting the {{out}} instance variable for
{{Display.Text}}, and then reading from that stream. 

However, with this patch, I was able to anonymously extend the {{Display.Text}} class and
override the {{getInputStream}} method to be public, and then call {{getInputStream}} directly.
Please let me know what you think.

> hadoop fs -text of zero-length file causes EOFException
> -------------------------------------------------------
>
>                 Key: HADOOP-11012
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11012
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 2.5.0
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>         Attachments: HDFS-6915.201408271824.txt, HDFS-6915.201408272144.txt, HDFS-6915.201408282053.txt
>
>
> List:
> $ $HADOOP_PREFIX/bin/hadoop fs -ls /user/ericp/foo
> -rw-------   3 ericp hdfs          0 2014-08-22 16:37 /user/ericp/foo
> Cat:
> $ $HADOOP_PREFIX/bin/hadoop fs -cat /user/ericp/foo
> Text:
> $ $HADOOP_PREFIX/bin/hadoop fs -text /user/ericp/foo
> text: java.io.EOFException
> 	at java.io.DataInputStream.readShort(DataInputStream.java:315)
> 	at org.apache.hadoop.fs.shell.Display$Text.getInputStream(Display.java:130)
> 	at org.apache.hadoop.fs.shell.Display$Cat.processPath(Display.java:98)
> 	at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:306)
> 	at org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:278)
> 	at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:260)
> 	at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:244)
> 	at org.apache.hadoop.fs.shell.Command.processRawArguments(Command.java:190)
> 	at org.apache.hadoop.fs.shell.Command.run(Command.java:154)
> 	at org.apache.hadoop.fs.FsShell.run(FsShell.java:287)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> 	at org.apache.hadoop.fs.FsShell.main(FsShell.java:340)



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