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Karthik Kambatla commented on YARN-1489: ---------------------------------------- Created a couple of sub-tasks based on an offline discussion with Anubhav, Bikas, Jian and Vinod. > [Umbrella] Work-preserving ApplicationMaster restart > ---------------------------------------------------- > > Key: YARN-1489 > URL: https://issues.apache.org/jira/browse/YARN-1489 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Vinod Kumar Vavilapalli > Assignee: Vinod Kumar Vavilapalli > Attachments: Work preserving AM restart.pdf > > > Today if AMs go down, > - RM kills all the containers of that ApplicationAttempt > - New ApplicationAttempt doesn't know where the previous containers are > running > - Old running containers don't know where the new AM is running. > We need to fix this to enable work-preserving AM restart. The later two > potentially can be done at the app level, but it is good to have a common > solution for all apps where-ever possible. -- This message was sent by Atlassian JIRA (v6.2#6252)