Prasanth Jayachandran created TEZ-3991:
------------------------------------------
Summary: Unmanaged tez sessions
Key: TEZ-3991
URL: https://issues.apache.org/jira/browse/TEZ-3991
Project: Apache Tez
Issue Type: New Feature
Affects Versions: 0.10.0
Reporter: Prasanth Jayachandran
Provide an option for launching tez AM in unmanaged mode. In unmanaged mode,
tez AMs can register itself with Zookeeper which clients (like HiveServer2) can
discover via zk registry client.
HiveServer2 currently manages the lifecycle of tez AMs. The unmanaged mode will
let AM come up on their own (can be via simple java launcher) and be
discoverable for others.
Example use case for this is, HiveServer2 can discover already running AMs and
can attach to it for DAG submission and detach when done executing queries. AMs
can similarly discover LLAP daemons via task scheduler plugin for submitting
tasks.
A mode to cut off interactions with RM will also useful since for LLAP no
on-demand containers are required.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
