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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3390) DFSAdmin should print full stack traces of errors when DEBUG logging is enabled
Date Tue, 08 May 2012 21:43:48 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-3390:
---------------------------------

    Attachment: HDFS-3390.patch

Here's a patch which addresses the issue. It catches all exceptions from DFSAdmin commands,
logs the full stack trace of the exception if LOG.isDebugEnabled, and then re-throws the exception
in all cases.

I tested this manually by setting HADOOP_ROOT_LOGGER=DEBUG,console and running  a few invalid
commands, e.g. with illegal arguments or non-HDFS URIs.
                
> DFSAdmin should print full stack traces of errors when DEBUG logging is enabled
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-3390
>                 URL: https://issues.apache.org/jira/browse/HDFS-3390
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>    Affects Versions: 2.0.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>            Priority: Minor
>         Attachments: HDFS-3390.patch
>
>
> If an error is encountered when running an `hdfs dfsadmin ...' command, only the exception's
message is output. It would be handy for debugging if the full stack trace of the exception
were output when DEBUG logging is enabled.

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