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Wangda Tan commented on YARN-2001: ---------------------------------- [~ozawa], as Bikas said, we should keep at least some early-reported containers not been killed via a threshold for NM's to resync. This is why we do work preserving restart. > Threshold for RM to accept requests from AM after failover > ---------------------------------------------------------- > > Key: YARN-2001 > URL: https://issues.apache.org/jira/browse/YARN-2001 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Jian He > Assignee: Jian He > > After failover, RM may require a certain threshold to determine whether it’s > safe to make scheduling decisions and start accepting new container requests > from AMs. The threshold could be a certain amount of nodes. i.e. RM waits > until a certain amount of nodes joining before accepting new container > requests. Or it could simply be a timeout, only after the timeout RM accepts > new requests. > NMs joined after the threshold can be treated as new NMs and instructed to > kill all its containers. -- This message was sent by Atlassian JIRA (v6.2#6252)