[ https://issues.apache.org/jira/browse/YARN-1490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13866267#comment-13866267 ]
Jian He commented on YARN-1490: ------------------------------- bq. What about NMTokens? Imagine this. AM1 requests a container, gets allocation and NMToken, crashes, AM2 starts, wants to stop the container, but it doesn't have any NMToken. TODO, will add the NMTokens for the containers on registration, I can do that in YARN-1041 > RM should optionally not kill all containers when an ApplicationMaster exits > ---------------------------------------------------------------------------- > > Key: YARN-1490 > URL: https://issues.apache.org/jira/browse/YARN-1490 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Vinod Kumar Vavilapalli > Assignee: Jian He > Attachments: YARN-1490.1.patch, YARN-1490.2.patch, YARN-1490.3.patch, > YARN-1490.4.patch > > > This is needed to enable work-preserving AM restart. Some apps can chose to > reconnect with old running containers, some may not want to. This should be > an option. -- This message was sent by Atlassian JIRA (v6.1.5#6160)