On 9 February 2013 00:25, Aaron T. Myers <a...@cloudera.com> wrote: > . When I first tried to start up the RM, it failed to start with > this error: > > And then this on shutdown: > > 13/02/08 16:00:31 INFO service.CompositeService: Error stopping > ResourceManager > java.lang.NullPointerException > at > > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.stop(ResourceManager.java:590) > at > > org.apache.hadoop.yarn.service.CompositeService$CompositeServiceShutdownHook.run(CompositeService.java:122) > at > > org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:54) > > Presumably this is because I don't have the CapacityScheduler queues > configured at all, and the default scheduler is now the CapacityScheduler. > To work around this for my testing, I switched to the FairScheduler and the > RM came up just fine. > > service is assuming it came up so doesn't check its args in stop(). See
https://issues.apache.org/jira/browse/MAPREDUCE-3502
