Vrushali C created YARN-6555: -------------------------------- Summary: Enable flow context read (& corresponding write) for recovering application with NM restart Key: YARN-6555 URL: https://issues.apache.org/jira/browse/YARN-6555 Project: Hadoop YARN Issue Type: Sub-task Reporter: Vrushali C Assignee: Vrushali C
If timeline service v2 is enabled and NM is restarted with recovery enabled, then NM fails to start and throws an error as "flow context can't be null". This is happening because the flow context did not exist before but now that timeline service v2 is enabled, ApplicationImpl expects it to exist. This would also happen even if flow context existed before but since we are not persisting it / reading it during ContainerManagerImpl#recoverApplication, it does not get passed in to ApplicationImpl. {code} full stack trace {code} 2017-05-03 21:51:52,178 FATAL org.apache.hadoop.yarn.server.nodemanager.NodeManager: Error starting NodeManager java.lang.IllegalArgumentException: flow context cannot be null at org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationImpl.<init>(ApplicationImpl.java:104) at org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationImpl.<init>(ApplicationImpl.java:90) at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.recoverApplication(ContainerManagerImpl.java:318) at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.recover(ContainerManagerImpl.java:280) at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.serviceInit(ContainerManagerImpl.java:267) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:276) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:588) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:649) {code} {code} -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org