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From "llcode (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6031) resourcemanager can not work while there has no any errors
Date Mon, 11 Aug 2014 11:00:13 GMT
llcode created MAPREDUCE-6031:

             Summary: resourcemanager can not work while there has no any errors
                 Key: MAPREDUCE-6031
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6031
             Project: Hadoop Map/Reduce
          Issue Type: Task
         Environment: CDH5.0.0(hadoop2.3.0)
            Reporter: llcode
            Assignee: llcode

recently , while the hadoop cluster are working .Sometime , there has no any errors in the
RM or NM , but the RM do not assigin resource while remaining much resource in the cluster
.The following representation are 
1、the command line such as "yarn node -list " could execute .The result are all well.
2、all nodes with running containers are all the MRapp container , no yarnchild process is
running . 
3、all applications that had been submited to the cluster early are all in the progress of
5%  ,simultanously they will hang forever.
the key is that we can not find any error or exception , but the applications  hung.
The temporary solution is to switch the active resourcemanager,but  where is the problem???

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