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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2464) Provide Hadoop as a local resource (on HDFS) which can be used by other projcets
Date Thu, 28 Aug 2014 20:29:08 GMT
Siddharth Seth created YARN-2464:
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             Summary: Provide Hadoop as a local resource (on HDFS) which can be used by other
projcets
                 Key: YARN-2464
                 URL: https://issues.apache.org/jira/browse/YARN-2464
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Siddharth Seth


DEFAULT_YARN_APPLICATION_CLASSPATH are used by YARN projects to setup their AM / task classpaths
if they have a dependency on Hadoop libraries.

It'll be useful to provide similar access to a Hadoop tarball (Hadoop libs, native libraries)
etc, which could be used instead - for applications which do not want to rely upon Hadoop
versions from a cluster node. This would also require functionality to update the classpath/env
for the apps based on the structure of the tar.

As an example, MR has support for a full tar (for rolling upgrades). Similarly, Tez ships
hadoop libraries along with it's build. I'm not sure about the Spark / Storm / HBase model
for this - but using a common copy instead of everyone localizing Hadoop libraries would be
useful.



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