Have anyone experienced this?

When the cluster is busy sometimes one map task of a job gets stuck.
An attempt is then made to kill the task, but this fails.

This shows up in the web interface:
task_0028_m_000534_0 node17.herd1 RUNNING 0.00% 10-Nov-2006 12:21:12
10-Nov-2006 12:22:19 (1mins, 6sec)
Task failed to report status for 604 seconds. Killing.

And that's the way it stays. Only way to get rid of it / rescue the job is
to restart the tasktracker.

This is what I found in the log a few times.

java.nio.channels.ClosedChannelException
       at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(
SocketChannelImpl.java:125)
       at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:294)
       at org.apache.hadoop.ipc.SocketChannelOutputStream.flushBuffer(
SocketChannelOutputStream.java:108)
       at org.apache.hadoop.ipc.SocketChannelOutputStream.write(
SocketChannelOutputStream.java:89)
       at java.io.BufferedOutputStream.flushBuffer(
BufferedOutputStream.java:65)
       at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)

       at java.io.DataOutputStream.flush(DataOutputStream.java:106)
       at org.apache.hadoop.ipc.Server$Handler.run(Server.java:532)

I've filed an issue about this at:
http://issues.apache.org/jira/browse/HADOOP-707

The open file limit is at 65000, so shouldn't be a problem.
All nodes are on the same network switch.

Full thread dump:

2006-11-17 15:08:14,707 INFO org.apache.hadoop.mapred.TaskTracker:
task_0133_m_000948_0: Task failed to report status for 608 seconds. Killing.
2006-11-17 15:08:14,722 INFO org.apache.hadoop.mapred.TaskTracker: Process
Thread Dump: lost task
65 active threads
Thread 46827 (IPC Client connection to master1.herd1/10.0.5.10:9001):
 State: WAITING
 Blocked count: 1
 Waited count: 2
 Waiting on [EMAIL PROTECTED]
 Stack:
   java.lang.Object.wait(Native Method)
   java.lang.Object.wait(Object.java:474)
   org.apache.hadoop.ipc.Client$Connection.waitForWork(Client.java:195)
   org.apache.hadoop.ipc.Client$Connection.run(Client.java:234)
Thread 46826 (btpool0-893):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46825 (btpool0-892):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46822 (btpool0-891):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 1
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46811 (btpool0-890):
 State: RUNNABLE
 Blocked count: 3
 Waited count: 1
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46810 (btpool0-889):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46803 (btpool0-888):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 8
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46408 (btpool0-887):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 41
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46402 (btpool0-886):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 26
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46396 (btpool0-885):
 State: RUNNABLE
 Blocked count: 4
 Waited count: 48
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   org.apache.hadoop.fs.LocalFileSystem$LocalFSFileInputStream.read(
LocalFileSystem.java:113)
   org.apache.hadoop.fs.FSDataInputStream$Checker.read(
FSDataInputStream.java:91)
   org.apache.hadoop.fs.FSDataInputStream$PositionCache.read(
FSDataInputStream.java:189)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   java.io.DataInputStream.read(DataInputStream.java:80)
   org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(
TaskTracker.java:1411)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:445)
   org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:356)
   org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:226)
   org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:627)
   org.mortbay.jetty.handler.ContextHandlerCollection.handle(
ContextHandlerCollection.java:149)
   org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:141)
   org.mortbay.jetty.Server.handle(Server.java:269)
   org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:430)
   org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(
HttpConnection.java:687)
Thread 46345 (btpool0-883):
 State: TIMED_WAITING
 Blocked count: 0
 Waited count: 26
 Stack:
   java.lang.Object.wait(Native Method)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:469)
Thread 46333 (btpool0-881):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 42
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46305 (btpool0-880):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 43
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46304 (btpool0-879):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 37
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46295 (btpool0-878):
 State: RUNNABLE
 Blocked count: 1
 Waited count: 36
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46253 (btpool0-877):
 State: RUNNABLE
 Blocked count: 1
 Waited count: 48
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46252 (btpool0-876):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 46
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46251 (btpool0-875):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 51
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
  org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 46242 (btpool0-874):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 43
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 45039 (Thread-28307):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.access$100(TaskRunner.java:36)
   org.apache.hadoop.mapred.TaskRunner$1.run(TaskRunner.java:304)
Thread 45038 (process reaper):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.lang.UNIXProcess.waitForProcessExit(Native Method)
   java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
   java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)
Thread 45031 (Thread-28302):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.access$100(TaskRunner.java:36)
   org.apache.hadoop.mapred.TaskRunner$1.run(TaskRunner.java:304)
Thread 45030 (process reaper):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.lang.UNIXProcess.waitForProcessExit(Native Method)
   java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
   java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)
Thread 45026 (Thread-28299):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.access$100(TaskRunner.java:36)
   org.apache.hadoop.mapred.TaskRunner$1.run(TaskRunner.java:304)
Thread 45025 (process reaper):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.lang.UNIXProcess.waitForProcessExit(Native Method)
   java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
   java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)
Thread 44998 (Thread-28283):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.access$100(TaskRunner.java:36)
   org.apache.hadoop.mapred.TaskRunner$1.run(TaskRunner.java:304)
Thread 44997 (process reaper):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.lang.UNIXProcess.waitForProcessExit(Native Method)
   java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
   java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)
Thread 44987 (Thread-28277):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.access$100(TaskRunner.java:36)
   org.apache.hadoop.mapred.TaskRunner$1.run(TaskRunner.java:304)
Thread 44986 (process reaper):
 State: RUNNABLE
 Blocked count: 0
 Waited count: 0
 Stack:
   java.lang.UNIXProcess.waitForProcessExit(Native Method)
   java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
   java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)
Thread 44905 (btpool0-872):
 State: TIMED_WAITING
 Blocked count: 2
 Waited count: 87
 Stack:
   java.lang.Object.wait(Native Method)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:469)
Thread 44903 (btpool0-870):
 State: TIMED_WAITING
 Blocked count: 1
 Waited count: 103
 Stack:
   java.lang.Object.wait(Native Method)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:469)
Thread 44891 (btpool0-865):
 State: RUNNABLE
 Blocked count: 5
 Waited count: 55
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 44888 (btpool0-863):
 State: RUNNABLE
 Blocked count: 7
 Waited count: 135
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 44887 (btpool0-862):
 State: RUNNABLE
 Blocked count: 4
 Waited count: 131
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 44882 (btpool0-857):
 State: RUNNABLE
 Blocked count: 9
 Waited count: 138
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 44881 (btpool0-856):
 State: RUNNABLE
 Blocked count: 3
 Waited count: 127
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 44841 (btpool0-851):
 State: RUNNABLE
 Blocked count: 6
 Waited count: 127
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 44752 (btpool0-849):
 State: RUNNABLE
 Blocked count: 7
 Waited count: 134
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 43631 (Thread-27401):
 State: RUNNABLE
 Blocked count: 114
 Waited count: 1730
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:308)
   org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:198)
Thread 43610 (Thread-27384):
 State: RUNNABLE
 Blocked count: 116
 Waited count: 1687
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:308)
   org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:198)
Thread 43591 (Thread-27369):
 State: RUNNABLE
 Blocked count: 79
 Waited count: 1690
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:308)
   org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:198)
Thread 43583 (Thread-27361):
 State: RUNNABLE
 Blocked count: 109
 Waited count: 1690
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:308)
   org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:198)
Thread 43575 (Thread-27353):
 State: RUNNABLE
 Blocked count: 128
 Waited count: 1726
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
   sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
   sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
   java.io.InputStreamReader.read(InputStreamReader.java:167)
   java.io.BufferedReader.fill(BufferedReader.java:136)
   java.io.BufferedReader.readLine(BufferedReader.java:299)
   java.io.BufferedReader.readLine(BufferedReader.java:362)
   org.apache.hadoop.mapred.TaskRunner.logStream(TaskRunner.java:340)
   org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:308)
   org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:198)
Thread 43052 (btpool0-844):
 State: RUNNABLE
 Blocked count: 6
 Waited count: 217
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 43049 (btpool0-842):
 State: RUNNABLE
 Blocked count: 4
 Waited count: 213
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 43042 (btpool0-835):
 State: RUNNABLE
 Blocked count: 12
 Waited count: 229
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   org.apache.hadoop.fs.LocalFileSystem$LocalFSFileInputStream.read(
LocalFileSystem.java:113)
   org.apache.hadoop.fs.FSDataInputStream$PositionCache.read(
FSDataInputStream.java:189)
   java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   java.io.DataInputStream.readFully(DataInputStream.java:176)
   java.io.DataInputStream.readFully(DataInputStream.java:152)
   org.apache.hadoop.fs.FSDataInputStream$Checker.<init>(
FSDataInputStream.java:60)
   org.apache.hadoop.fs.FSDataInputStream.<init>(FSDataInputStream.java
:279)
   org.apache.hadoop.fs.FileSystem.open(FileSystem.java:156)
   org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(
TaskTracker.java:1409)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:445)
   org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:356)
   org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:226)
   org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:627)
   org.mortbay.jetty.handler.ContextHandlerCollection.handle(
ContextHandlerCollection.java:149)
Thread 40895 (btpool0-803):
 State: RUNNABLE
 Blocked count: 3
 Waited count: 361
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 40380 (btpool0-790):
 State: RUNNABLE
 Blocked count: 7
 Waited count: 391
 Stack:
   java.io.FileInputStream.readBytes(Native Method)
   java.io.FileInputStream.read(FileInputStream.java:194)
   org.apache.hadoop.fs.LocalFileSystem$LocalFSFileInputStream.read(
LocalFileSystem.java:113)
   org.apache.hadoop.fs.FSDataInputStream$Checker.read(
FSDataInputStream.java:91)
   org.apache.hadoop.fs.FSDataInputStream$PositionCache.read(
FSDataInputStream.java:189)
   java.io.BufferedInputStream.read1(BufferedInputStream.java:254)
   java.io.BufferedInputStream.read(BufferedInputStream.java:313)
   java.io.DataInputStream.read(DataInputStream.java:80)
   org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(
TaskTracker.java:1411)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:445)
   org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:356)
   org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:226)
   org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:627)
   org.mortbay.jetty.handler.ContextHandlerCollection.handle(
ContextHandlerCollection.java:149)
   org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:141)
   org.mortbay.jetty.Server.handle(Server.java:269)
   org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:430)
   org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(
HttpConnection.java:687)
Thread 39121 (btpool0-784):
 State: RUNNABLE
 Blocked count: 16
 Waited count: 439
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 39112 (btpool0-775):
 State: RUNNABLE
 Blocked count: 13
 Waited count: 396
 Stack:
   java.net.SocketInputStream.socketRead0(Native Method)
   java.net.SocketInputStream.read(SocketInputStream.java:129)
   org.mortbay.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:168)
   org.mortbay.io.bio.StreamEndPoint.fill(StreamEndPoint.java:98)
   org.mortbay.jetty.bio.SocketConnector$Connection.fill(
SocketConnector.java:181)
   org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:263)
   org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:193)
   org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   org.mortbay.jetty.bio.SocketConnector$Connection.run(
SocketConnector.java:208)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 28 ([EMAIL PROTECTED]):
 State: TIMED_WAITING
 Blocked count: 0
 Waited count: 0
 Stack:
   java.lang.Thread.sleep(Native Method)
   org.apache.hadoop.dfs.DFSClient$LeaseChecker.run(DFSClient.java:462)
   java.lang.Thread.run(Thread.java:595)
Thread 19 (org.apache.hadoop.io.ObjectWritable Connection Culler):
 State: TIMED_WAITING
 Blocked count: 154
 Waited count: 0
 Stack:
   java.lang.Thread.sleep(Native Method)
   org.apache.hadoop.ipc.Client$ConnectionCuller.run(Client.java:388)
Thread 18 (IPC Server handler 4 on 50050):
 State: TIMED_WAITING
 Blocked count: 1769
 Waited count: 51161
 Stack:
   java.lang.Object.wait(Native Method)
   org.apache.hadoop.ipc.Server$Handler.run(Server.java:486)
Thread 17 (IPC Server handler 3 on 50050):
 State: TIMED_WAITING
 Blocked count: 1673
 Waited count: 51202
 Stack:
   java.lang.Object.wait(Native Method)
   org.apache.hadoop.ipc.Server$Handler.run(Server.java:486)
Thread 16 (IPC Server handler 2 on 50050):
 State: TIMED_WAITING
 Blocked count: 1685
 Waited count: 51188
 Stack:
   java.lang.Object.wait(Native Method)
   org.apache.hadoop.ipc.Server$Handler.run(Server.java:486)
Thread 15 (IPC Server handler 1 on 50050):
 State: TIMED_WAITING
 Blocked count: 1694
 Waited count: 51183
 Stack:
   java.lang.Object.wait(Native Method)
   org.apache.hadoop.ipc.Server$Handler.run(Server.java:486)
Thread 14 (IPC Server handler 0 on 50050):
 State: TIMED_WAITING
 Blocked count: 1913
 Waited count: 51137
 Stack:
   java.lang.Object.wait(Native Method)
   org.apache.hadoop.ipc.Server$Handler.run(Server.java:486)
Thread 13 (IPC Server listener on 50050):
 State: RUNNABLE
 Blocked count: 634
 Waited count: 0
 Stack:
   sun.nio.ch.PollArrayWrapper.poll0(Native Method)
   sun.nio.ch.PollArrayWrapper.poll(PollArrayWrapper.java:100)
   sun.nio.ch.PollSelectorImpl.doSelect(PollSelectorImpl.java:56)
   sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
   sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
   sun.nio.ch.SelectorImpl.select(SelectorImpl.java:84)
   org.apache.hadoop.ipc.Server$Listener.run(Server.java:224)
Thread 12 (btpool0-1 - Acceptor0 SocketConnector @ 0.0.0.0:50060):
 State: RUNNABLE
 Blocked count: 85
 Waited count: 1517
 Stack:
   java.net.PlainSocketImpl.socketAccept(Native Method)
   java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
   java.net.ServerSocket.implAccept(ServerSocket.java:450)
   java.net.ServerSocket.accept(ServerSocket.java:421)
   org.mortbay.jetty.bio.SocketConnector.accept(SocketConnector.java:97)
   org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java
:630)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 11 (btpool0-0 - Invalidator - /):
 State: TIMED_WAITING
 Blocked count: 0
 Waited count: 1
 Stack:
   java.lang.Thread.sleep(Native Method)
   org.mortbay.jetty.servlet.AbstractSessionManager$SessionScavenger.run(
AbstractSessionManager.java:933)
   org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)
Thread 9 (taskCleanup):
 State: WAITING
 Blocked count: 457
 Waited count: 118
 Waiting on [EMAIL PROTECTED]
 Stack:
   java.lang.Object.wait(Native Method)
   java.lang.Object.wait(Object.java:474)
   org.apache.hadoop.mapred.TaskTracker$BlockingQueue.take(TaskTracker.java
:783)
   org.apache.hadoop.mapred.TaskTracker$1.run(TaskTracker.java:143)
   java.lang.Thread.run(Thread.java:595)
Thread 4 (Signal Dispatcher):
 State: RUNNABLE
 Blocked count: 0
Waited count: 0
 Stack:
Thread 3 (Finalizer):
 State: WAITING
 Blocked count: 99047
 Waited count: 39648
 Waiting on [EMAIL PROTECTED]
 Stack:
   java.lang.Object.wait(Native Method)
   java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
   java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
   java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
Thread 2 (Reference Handler):
 State: WAITING
 Blocked count: 102986
 Waited count: 3131
 Waiting on [EMAIL PROTECTED]
 Stack:
   java.lang.Object.wait(Native Method)
   java.lang.Object.wait(Object.java:474)
   java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
Thread 1 (main):
 State: RUNNABLE
 Blocked count: 1538
 Waited count: 107465
 Stack:
   sun.management.ThreadImpl.getThreadInfo0(Native Method)
   sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:144)
   sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:120)
   org.apache.hadoop.util.ReflectionUtils.printThreadInfo(
ReflectionUtils.java:93)
   org.apache.hadoop.util.ReflectionUtils.logThreadInfo(
ReflectionUtils.java:141)
   org.apache.hadoop.mapred.TaskTracker.markUnresponsiveTasks(
TaskTracker.java:553)
   org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:449)
   org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:720)
   org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:1374)


/Johan

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