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From "Steve Loughran (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 Wed, 19 Nov 2008 13:58:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12649038#action_12649038
] 

Steve Loughran commented on HADOOP-4659:
----------------------------------------

I'll look at this today. Last night's test run hung on TestFileCreationClient which may indicate
some problems there; more research needed.

> 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, rpcConn.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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