Rohith Sharma K S created YARN-4881:
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Summary: RM continuously switch if HDFS is too busy when NodeLabel
is configured
Key: YARN-4881
URL: https://issues.apache.org/jira/browse/YARN-4881
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Reporter: Rohith Sharma K S
Priority: Critical
It is observed in the production cluster that RM fail to become active and keep
continuously switching if the HDFS is too busy and node label is configured.
This is causing RM down time as very high.
Exception from RM logs
{noformat}
Caused by: org.apache.hadoop.service.ServiceStateException:
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File
/user/mapred/node-labels/nodelabel.mirror.writing could only be replicated to 0
nodes instead of minReplication (=1). There are 7 datanode(s) running and no
node(s) are excluded in this operation.
{noformat}
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