You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-dev@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2012/11/14 03:16:12 UTC
[jira] [Created] (MAPREDUCE-4797) LocalContainerAllocator can loop
forever trying to contact the RM
Jason Lowe created MAPREDUCE-4797:
-------------------------------------
Summary: LocalContainerAllocator can loop forever trying to contact the RM
Key: MAPREDUCE-4797
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4797
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: applicationmaster
Affects Versions: 2.0.1-alpha, 0.23.3
Reporter: Jason Lowe
If LocalContainerAllocator has trouble communicating with the RM it can end up retrying forever if the nature of the error is not a YarnException.
This can be particulary bad if the connection went down because the cluster was reset such that the RM and NM have lost track of the process and therefore nothing else will eventually kill the process. In this scenario, the looping AM continues to pelt the RM with connection requests every second using a stale token, and the RM logs the SASL exceptions over and over.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira