[jira] [Commented] (HDFS-12705) WebHdfsFileSystem exceptions should retain the caused by exception

["Nanda kumar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-12705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16217994#comment-16217994 ] 

Nanda kumar commented on HDFS-12705:
------------------------------------

Thanks [~hanishakoneru] for taking it up. Instead of setting cause as exception message we can call {{newIoe.initCause(ioe.getCause())}} to set the cause in newly created exception.

> WebHdfsFileSystem exceptions should retain the caused by exception
> ------------------------------------------------------------------
>
>                 Key: HDFS-12705
>                 URL: https://issues.apache.org/jira/browse/HDFS-12705
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs
>    Affects Versions: 2.8.0
>            Reporter: Daryn Sharp
>            Assignee: Hanisha Koneru
>         Attachments: HDFS-12705.001.patch
>
>
> {{WebHdfsFileSystem#runWithRetry}} uses reflection to prepend the remote host to the exception.  While it preserves the original stacktrace, it omits the original cause which complicates debugging.



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