[jira] Commented: (HADOOP-3437) mapred.job.tracker default value/docs appear out of sync with code

["Erik Forsberg (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-3437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12719707#action_12719707 ] 

Erik Forsberg commented on HADOOP-3437:
---------------------------------------

Could the problem be IPv6-related? I'm getting this error when trying out the configuration listed at http://hadoop.apache.org/core/docs/current/quickstart.html#PseudoDistributed

Reading http://wiki.github.com/klbostee/dumbo/short-tutorial, I got the idea to explicitly set my real IPv4 address instead of 0.0.0.0 for values where this was the default. 

I.e., I replaced 0.0.0.0 with my real IP address for dfs.secondary.http.address, dfs.datanode.address, dfs.datanode.http.address, dfs.datanode.ipc.address, dfs.http.address, dfs.datanode.https.address, dfs.https.address, mapred.job.tracker.http.address, and mapred.task.tracker.http.address. Setting 127.0.0.1 would probably have worked as well. 

That solved the problem. 

> mapred.job.tracker default value/docs appear out of sync with code
> ------------------------------------------------------------------
>
>                 Key: HADOOP-3437
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3437
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.18.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> This is the settings for mapred.job.tracker in SVN_HEAD. If you dont override these, you get a RuntimeException
> <property>
>   <name>mapred.job.tracker</name>
>   <value>local</value>
>   <description>The host and port that the MapReduce job tracker runs
>   at.  If "local", then jobs are run in-process as a single map
>   and reduce task.
>   </description>
> </property>

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