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