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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9657) NetUtils.wrapException to have special handling for addresses and :0 ports
Date Mon, 20 Jul 2015 11:39:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14633449#comment-14633449

Steve Loughran commented on HADOOP-9657:

Looks OK, though we should have a separate "UnsetDestinationAddress" wiki entry which describes
the problem, the normal one being "your client is using a general server-side config which
hasn't set the hostname or port in actual use by the service"

> NetUtils.wrapException to have special handling for addresses and :0 ports
> ----------------------------------------------------------------------------------
>                 Key: HADOOP-9657
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9657
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: net
>    Affects Versions: 2.7.0
>            Reporter: Steve Loughran
>            Assignee: Varun Saxena
>            Priority: Minor
>         Attachments: HADOOP-9657.01.patch
> when an exception is wrapped, it may look like {{ failed on connection exception:
java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused}}
> We should recognise all zero ip addresses and 0 ports and flag them as "your configuration
of the endpoint is wrong", as it is clearly the case

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