Uploaded image for project: 'Hadoop YARN'
  1. Hadoop YARN
  2. YARN-1071

ResourceManager's decommissioned and lost node count is 0 after restart

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.1.0-beta
    • 2.4.0
    • resourcemanager
    • None
    • Reviewed

    Description

      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:

      "NumActiveNMs" : 3,
"NumDecommissionedNMs" : 1,
"NumLostNMs" : 2,
"NumUnhealthyNMs" : 0,
"NumRebootedNMs" : 0

      After restarting RM, the counts were shown as below in JMX.

      "NumActiveNMs" : 3,
"NumDecommissionedNMs" : 0,
"NumLostNMs" : 0,
"NumUnhealthyNMs" : 0,
"NumRebootedNMs" : 0

      Notice that the lost and decommissioned NM counts are both 0.

      Attachments

        1. YARN-1071.1.patch
          10 kB
          Jian He
        2. YARN-1071.2.patch
          12 kB
          Jian He
        3. YARN-1071.3.patch
          12 kB
          Jian He
        4. YARN-1071.4.patch
          12 kB
          Jian He
        5. YARN-1071.5.patch
          12 kB
          Jian He
        6. YARN-1071.6.patch
          13 kB
          Jian He

        Issue Links

          relates to

          Sub-task - The sub-task of the issue YARN-2567 Add a percentage-node threshold for RM to wait for new allocations after restart/failover

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. AMBARI-2940 After restarting YARN, the number of lost nodes is incorrect

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              jianhe Jian He
              srimanth.gunturi Srimanth Gunturi
              Votes:
              0 Vote for this issue
              Watchers:
              9 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: