Thanks Sangjin. I’ll keep tracing this. Meanwhile, if anybody has reproduced the problem, please feel free to let me know. Thanks!
Li Lu On Dec 14, 2015, at 18:16, Sangjin Lee <[email protected]<mailto:[email protected]>> wrote: Can you bisect the commits to see if you can isolate which commit introduced the issue? On Mon, Dec 14, 2015 at 5:39 PM, Li Lu <[email protected]<mailto:[email protected]>> wrote: Hi YARN developers working on Timeline v2 (YARN-2928) branch, I just realized I’ve accidentally turned off SMP for my local Timeline v2 build. After I turned yarn.system-metrics-publisher.enabled back on, the RM fails to start with the following FATAL message: 2015-12-14 17:27:54,125 INFO ipc.Server (Server.java:run(797)) - IPC Server listener on 8033: starting 2015-12-14 17:27:54,127 FATAL event.AsyncDispatcher (AsyncDispatcher.java:dispatch(189)) - Error in dispatcher thread true java.lang.Exception: No handler for registered for class org.apache.hadoop.yarn.server.resourcemanager.metrics.AbstractSystemMetricsPubli sher$SystemMetricsEventType at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:185) at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:109) at java.lang.Thread.run(Thread.java:745) 2015-12-14 17:27:54,127 INFO event.AsyncDispatcher (AsyncDispatcher.java:register(208)) - Registering class org.apache.hadoop.yarn.serve r.resourcemanager.metrics.AbstractSystemMetricsPublisher$SystemMetricsEventType for class org.apache.hadoop.yarn.server.resourcemanager.m etrics.TimelineServiceV2Publisher$TimelineV2EventHandler Interestingly, we’re registering this class to timeline v2 handler in the next line of log. I’m wondering if this is caused by some of my missing configs, or a newly introduced issue? Has anybody on feature-YARN-2928 branch noticed this issue? Thanks! Li Lu
