[ http://issues.apache.org/jira/browse/HADOOP-36?page=all ]
Doug Cutting resolved HADOOP-36:
--------------------------------
Resolution: Fixed
I just committed fixes for most of this. The slaves and environment variables
are now read from the conf directory. If there are further elements you'd like
to see, please submit them as separate bugs.
> Adding some uniformity/convenience to environment management
> ------------------------------------------------------------
>
> Key: HADOOP-36
> URL: http://issues.apache.org/jira/browse/HADOOP-36
> Project: Hadoop
> Type: Improvement
> Components: conf
> Reporter: Bryan Pendleton
>
> Currently, "slaves" are loaded from ~/.slaves. What would be better would be
> to default from something like conf/hadoop-slaves
> Perhaps split slaves, having a different set for "datanodes" vs.
> "tasktracker" nodes. ie, conf/hadoop-slaves-tasktracker,
> conf/hadoop-slaves-datanodes, or some similar split. There's the possibility
> it's worth building in the assumption that tasktracker is a superset, and
> thus implicitly includes datanodes, but this might be a bad assumption.
> Also, make sure all scripts source something like conf/hadoop-env.sh. Thus,
> the user can edit hadoop-env.sh to specify JAVA_HOME, or an alternate
> HADOOP_SLAVES location. It would also be desirable to have a seed CLASSPATH
> here. Possibly name it HADOOP_CLASSPATH, to make it explicit and not make
> hadoop scripts possibly interact with an otherwise-set system CLASSPATH
> variable.
> These changes would probably be useful to the nutch project, too.
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