Uploaded image for project: 'Hadoop YARN'
  1. Hadoop YARN
  2. YARN-8300

Fix NPE in DefaultUpgradeComponentsFinder

VotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.1.1
    • 3.2.0, 3.1.1
    • yarn
    • None

    Description

      In current upgrades for Yarn native services, we do not support addition/deletion of compoents during upgrade. On trying to upgrade with the same number of components in target spec as the current service spec but with the one of the components having a new target spec and name, see the following NPE in service AM logs

      2018-05-15 00:10:41,489 [IPC Server handler 0 on 37488] ERROR service.ClientAMService - Error while trying to upgrade service {} 
      java.lang.NullPointerException
      	at org.apache.hadoop.yarn.service.UpgradeComponentsFinder$DefaultUpgradeComponentsFinder.lambda$findTargetComponentSpecs$0(UpgradeComponentsFinder.java:103)
      	at java.util.ArrayList.forEach(ArrayList.java:1257)
      	at org.apache.hadoop.yarn.service.UpgradeComponentsFinder$DefaultUpgradeComponentsFinder.findTargetComponentSpecs(UpgradeComponentsFinder.java:100)
      	at org.apache.hadoop.yarn.service.ServiceManager.processUpgradeRequest(ServiceManager.java:259)
      	at org.apache.hadoop.yarn.service.ClientAMService.upgrade(ClientAMService.java:163)
      	at org.apache.hadoop.yarn.service.impl.pb.service.ClientAMProtocolPBServiceImpl.upgradeService(ClientAMProtocolPBServiceImpl.java:81)
      	at org.apache.hadoop.yarn.proto.ClientAMProtocol$ClientAMProtocolService$2.callBlockingMethod(ClientAMProtocol.java:5972)
      	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
      	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
      	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
      	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
      	at java.security.AccessController.doPrivileged(Native Method)
      	at javax.security.auth.Subject.doAs(Subject.java:422)
      	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1682)
      	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)
      

      Attachments

        1. YARN-8300.1.patch
          7 kB
          Suma Shivaprasad
        2. YARN-8300.2.patch
          8 kB
          Suma Shivaprasad
        3. YARN-8300.3.patch
          8 kB
          Suma Shivaprasad

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            suma.shivaprasad Suma Shivaprasad
            suma.shivaprasad Suma Shivaprasad
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment