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  1. Hadoop HDFS
  2. HDFS-1312 Re-balance disks within a Datanode
  3. HDFS-10541

Diskbalancer: When no actions in plan, error message says "Plan was generated more than 24 hours ago"

    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: HDFS-1312
    • Fix Version/s: None
    • Component/s: datanode
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      The message is misleading. Instead, it should make it clear that there are no steps (or no action) to take in this plan - and should probably not error out.

      16/06/16 14:56:53 INFO command.Command: Executing "execute plan" command
      Plan was generated more than 24 hours ago.
      	at org.apache.hadoop.hdfs.server.datanode.DiskBalancer.verifyTimeStamp(DiskBalancer.java:387)
      	at org.apache.hadoop.hdfs.server.datanode.DiskBalancer.verifyPlan(DiskBalancer.java:315)
      	at org.apache.hadoop.hdfs.server.datanode.DiskBalancer.submitPlan(DiskBalancer.java:173)
      	at org.apache.hadoop.hdfs.server.datanode.DataNode.submitDiskBalancerPlan(DataNode.java:3059)
      	at org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolServerSideTranslatorPB.submitDiskBalancerPlan(ClientDatanodeProtocolServerSideTranslatorPB.java:299)
      	at org.apache.hadoop.hdfs.protocol.proto.ClientDatanodeProtocolProtos$ClientDatanodeProtocolService$2.callBlockingMethod(ClientDatanodeProtocolProtos.java:17509)
      	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
      	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
      	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086)
      	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082)
      	at java.security.AccessController.doPrivileged(Native Method)
      	at javax.security.auth.Subject.doAs(Subject.java:415)
      	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
      	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080)
      

      This happens when a plan looks like the following one:

      {"volumeSetPlans":[],"nodeName":"a.b.c","nodeUUID":null,"port":20001,"timeStamp":0}
      

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            • Assignee:
              anu Anu Engineer
              Reporter:
              eddyxu Lei (Eddy) Xu
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              Dates

              • Created:
                Updated:
                Resolved: