Bulk Operation

YARN-666 ClientToAMTokenIdentifier and DelegationTokenIdentifier should allow extended fields

YARN-666 NMClient doesn't have retries for supporting rolling-upgrades

YARN-666 MR job client cannot reconnect to AM after NM restart.

YARN-666 Provide Hadoop as a local resource (on HDFS) which can be used by other projects

YARN-666 Consolidate RMStateVersion and NMDBSchemaVersion into StateVersion in yarn-server-common

YARN-666 ApplicationHistoryStore should be versioned

YARN-666 Data persistent in timelinestore should be versioned

YARN-666 YARN RPC should support Protocol Version in client/server

YARN-666 Move containerMgrProxy from RM's AMLaunch to get rid of issues that new client talking with old server

YARN-666 Data persisted in NM should be versioned

YARN-666 ResourceManager and NodeManager should check for a minimum allowed version

YARN-666 Add an interface on the RM to move NMs into a maintenance state

YARN-666 Add an Exception to indicate 'Maintenance' for NMs and add this to the JavaDoc for appropriate protocols

YARN-666 ContainerTokens sent from the RM to NM via the AM should be a byte field

YARN-666 TokenIdentifier serialization should consider Unknown fields

YARN-666 Data persisted in RM should be versioned

YARN-666 Add an option to drain the ResourceManager of all apps for upgrades