[jira] [Created] (YARN-1071) ResourceManager's decommissioned and lost node count is 0 after restart

["Srimanth Gunturi (JIRA)" <ji...@apache.org>]

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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