Deadlock in Jobtracker
----------------------
Key: MAPREDUCE-805
URL: https://issues.apache.org/jira/browse/MAPREDUCE-805
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Michael Tamm
We are running a hadoop cluster (version 0.20.0) and have detected the
following deadlock on our jobtracker:
{code}
"IPC Server handler 51 on 9001":
at
org.apache.hadoop.mapred.JobInProgress.getCounters(JobInProgress.java:943)
- waiting to lock <0x00007f2b6fb46130> (a
org.apache.hadoop.mapred.JobInProgress)
at
org.apache.hadoop.mapred.JobTracker.getJobCounters(JobTracker.java:3102)
- locked <0x00007f2b5f026000> (a org.apache.hadoop.mapred.JobTracker)
at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
"pool-1-thread-2":
at org.apache.hadoop.mapred.JobTracker.finalizeJob(JobTracker.java:2017)
- waiting to lock <0x00007f2b5f026000> (a
org.apache.hadoop.mapred.JobTracker)
at
org.apache.hadoop.mapred.JobInProgress.garbageCollect(JobInProgress.java:2483)
- locked <0x00007f2b6fb46130> (a org.apache.hadoop.mapred.JobInProgress)
at
org.apache.hadoop.mapred.JobInProgress.terminateJob(JobInProgress.java:2152)
- locked <0x00007f2b6fb46130> (a org.apache.hadoop.mapred.JobInProgress)
at
org.apache.hadoop.mapred.JobInProgress.terminate(JobInProgress.java:2169)
- locked <0x00007f2b6fb46130> (a org.apache.hadoop.mapred.JobInProgress)
at org.apache.hadoop.mapred.JobInProgress.fail(JobInProgress.java:2245)
- locked <0x00007f2b6fb46130> (a org.apache.hadoop.mapred.JobInProgress)
at
org.apache.hadoop.mapred.EagerTaskInitializationListener$InitJob.run(EagerTaskInitializationListener.java:86)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
{code}
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