[ http://issues.apache.org/jira/browse/HADOOP-36?page=all ]
Doug Cutting updated HADOOP-36:
-------------------------------
Fix Version: 0.1.0
> 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
> Fix For: 0.1.0
>
> 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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