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  1. Hadoop Common
  2. HADOOP-2001

Deadlock in jobtracker

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.14.0
    • Fix Version/s: 0.14.4
    • Component/s: None
    • Labels:
      None

      Description

      My jobtracker deadlocked; the output from kill -QUIT is:

      Found one Java-level deadlock:
      =============================
      "IPC Server handler 2 on 10001":
      waiting to lock monitor 0x0813724c (object 0xd5175488, a org.apache.hadoop.mapred.JobInProgress),
      which is held by "SocketListener0-1"
      "SocketListener0-1":
      waiting to lock monitor 0x081146d4 (object 0xd24d9c50, a org.apache.hadoop.mapred.JobTracker),
      which is held by "IPC Server handler 2 on 10001"

      Java stack information for the threads listed above:
      ===================================================
      "IPC Server handler 2 on 10001":
      at org.apache.hadoop.mapred.JobInProgress.updateTaskStatus(JobInProgress.java:367)

      • waiting to lock <0xd5175488> (a org.apache.hadoop.mapred.JobInProgress)
        at org.apache.hadoop.mapred.JobTracker.updateTaskStatuses(JobTracker.java:1719)
        at org.apache.hadoop.mapred.JobTracker.processHeartbeat(JobTracker.java:1240)
      • locked <0xd24d9c50> (a org.apache.hadoop.mapred.JobTracker)
        at org.apache.hadoop.mapred.JobTracker.heartbeat(JobTracker.java:1116)
      • locked <0xd24d9c50> (a org.apache.hadoop.mapred.JobTracker)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:340)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:566)
        "SocketListener0-1":
        at org.apache.hadoop.mapred.JobTracker.finalizeJob(JobTracker.java:907)
      • waiting to lock <0xd24d9c50> (a org.apache.hadoop.mapred.JobTracker)
        at org.apache.hadoop.mapred.JobInProgress.garbageCollect(JobInProgress.java:1059)
      • locked <0xd5175488> (a org.apache.hadoop.mapred.JobInProgress)
        at org.apache.hadoop.mapred.JobInProgress.kill(JobInProgress.java:891)
      • locked <0xd5175488> (a org.apache.hadoop.mapred.JobInProgress)
        at org.apache.hadoop.mapred.jobdetails_jsp._jspService(jobdetails_jsp.java:158)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
        at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
        at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
        at org.mortbay.http.HttpServer.service(HttpServer.java:954)
        at org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
        at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
        at org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
        at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
        at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
        at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

      Found 1 deadlock.

        Attachments

        1. HADOOP-2001_2_20071006.patch
          2 kB
          Arun Murthy
        2. 2001.patch
          2 kB
          Devaraj Das
        3. 2001.patch
          2 kB
          Devaraj Das

          Activity

            People

            • Assignee:
              acmurthy Arun Murthy
              Reporter:
              bien Michael Bieniosek
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              Dates

              • Created:
                Updated:
                Resolved: