Srimanth Gunturi created YARN-1071:
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Summary: ResourceManager's decommissioned and lost node count is 0
after restart
Key: YARN-1071
URL: https://issues.apache.org/jira/browse/YARN-1071
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 2.1.0-beta
Reporter: Srimanth Gunturi
I had 6 nodes in a cluster with 2 NMs stopped. Then I put a host into YARN's
{{yarn.resourcemanager.nodes.exclude-path}}. After running {{yarn rmadmin
-refreshNodes}}, RM's JMX correctly showed decommissioned node count:
{noformat}
"NumActiveNMs" : 3,
"NumDecommissionedNMs" : 1,
"NumLostNMs" : 2,
"NumUnhealthyNMs" : 0,
"NumRebootedNMs" : 0
{noformat}
After restarting RM, the counts were shown as below in JMX.
{noformat}
"NumActiveNMs" : 3,
"NumDecommissionedNMs" : 0,
"NumLostNMs" : 0,
"NumUnhealthyNMs" : 0,
"NumRebootedNMs" : 0
{noformat}
Notice that the lost and decommissioned NM counts are both 0.
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