Chris Trezzo created YARN-2168:

             Summary: SCM/Client/NM/Admin protocols
                 Key: YARN-2168
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Chris Trezzo
            Assignee: Chris Trezzo

Define and implement the following protocols and protocol messages using 
* ClientSCMProtocol - The protocol between the yarn client and the cache 
manager. This protocol controls how resources in the cache are claimed and 
** UseSharedCacheResourceRequest
** UseSharedCacheResourceResponse
** ReleaseSharedCacheResourceRequest
** ReleaseSharedCacheResourceResponse
* SCMAdminProtocol - This is an administrative protocol for the cache manager. 
It allows administrators to manually trigger cleaner runs.
** RunSharedCacheCleanerTaskRequest
** RunSharedCacheCleanerTaskResponse
* NMCacheUploaderSCMProtocol - The protocol between the NodeManager and the 
cache manager. This allows the NodeManager to coordinate with the cache manager 
when uploading new resources to the shared cache.
** NotifySCMRequest
** NotifySCMResponse

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