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https://issues.apache.org/jira/browse/MAPREDUCE-5403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718833#comment-13718833
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Sandy Ryza commented on MAPREDUCE-5403:
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bq. why are we using a literal string instead of a programming friendly
constant?
Good point. Will add a constant in.
bq. Why have we changed YARN_APPLICATION_CLASSPATH to NM_APPLICATION_CLASSPATH?
The convention for configs that are used (only) by the NodeManager is NM (e.g.
NM_HEALTH_CHECK_INTERVAL_MS, NM_LINUX_CONTAINER_EXECUTOR_PATH, etc.). Nearly
all configs in this category will be the same across all nodes.
bq. Regardless, is this a configuration for the yarn application or the NM?
It is a configuration for the NM, specifying where the framework jars are
located on the node.
bq. Mixing NM_APPLICATION_CLASSPATH with YARN_APPLICATION_CLASSPATH_DEFAULT???
Ooooops my bad.
> yarn.application.classpath requires client to know service internals
> --------------------------------------------------------------------
>
> Key: MAPREDUCE-5403
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5403
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client
> Affects Versions: 2.0.5-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Attachments: MAPREDUCE-5403-1.patch, MAPREDUCE-5403.patch
>
>
> yarn.application.classpath is a confusing property because it is used by
> MapReduce and not YARN, and MapReduce already has
> mapreduce.application.classpath, which provides the same functionality.
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