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  1. Hadoop Common
  2. HADOOP-1973

NPE at JobTracker startup..

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.15.0
    • Fix Version/s: 0.15.0
    • Component/s: None
    • Labels:
      None

      Description

      At JT startup a bunch of these were thrown.. and the JT shutdown.

      2007-10-01 07:48:36,501 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:40205'; reinitializing the tasktracker
      2007-10-01 07:48:36,504 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:57935'; reinitializing the tasktracker
      2007-10-01 07:48:36,520 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:46305'; reinitializing the tasktracker
      2007-10-01 07:48:36,523 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:55988'; reinitializing the tasktracker
      2007-10-01 07:48:36,524 INFO org.apache.hadoop.ipc.Server: IPC Server handler 28 on 50020, call getFilesystemName() from [tracker_ip]:47361: error: java.io.IOException: java.lang.NullPointerException
      java.io.IOException: java.lang.NullPointerException
      at org.apache.hadoop.mapred.JobTracker.getFilesystemName(JobTracker.java:1458)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:340)
      at org.apache.hadoop.ipc.Server$Handler.run(Server.java:596)

        Attachments

        1. patch-1973.txt
          2 kB
          Amareshwari Sriramadasu
        2. patch-1973.txt
          0.5 kB
          Amareshwari Sriramadasu

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            People

            • Assignee:
              amareshwari Amareshwari Sriramadasu
              Reporter:
              gautamk Gautam Kowshik
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              Dates

              • Created:
                Updated:
                Resolved: