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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4659) Root cause of connection failure is being lost to code that uses it for delaying startup
Date Tue, 18 Nov 2008 00:30:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12648431#action_12648431
] 

Hairong Kuang commented on HADOOP-4659:
---------------------------------------

I do not think HADOOP-3844 is related to this jira. HADOOP-3844 does not add hostname:port
to the message. HADOOP-3844 tried to add root cause of the exception to its message. With
this patch, ConnectException does not ge wrapped. So this patch does not degrade HADOOP-3844.

> Root cause of connection failure is being lost to code that uses it for delaying startup
> ----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-4659
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4659
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.18.3
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Blocker
>             Fix For: 0.18.3
>
>         Attachments: connectRetry.patch, hadoop-4659.patch
>
>
> ipc.Client the root cause of a connection failure is being lost as the exception is wrapped,
hence the outside code, the one that looks for that root cause, isn't working as expected.
The results is you can't bring up a task tracker before job tracker, and probably the same
for a datanode before a  namenode. The change that triggered this is not yet located, I had
thought it was HADOOP-3844 but I no longer believe this is the case.

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