RE: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Panayotis Antonopoulos 

There is no shutdown message until I shutdown the DataNode.

I used hostname of the machine that will run the DataNode and I now used the IP 
but there is no difference.
Again the DataNode seems to freeze and the output at the log is the one I 
mentioned before.



 Subject: Re: Datanode doesn't start but there is no exception in the log
 From: highpoint...@gmail.com
 Date: Thu, 12 May 2011 23:59:02 -0600
 To: common-user@hadoop.apache.org
 
 Have you defined the IP
 of the DN in the slaves file?
 
 
 
 Sent from my iPhone
 
 On May 12, 2011, at 7:27 PM, Bharath Mundlapudi bharathw...@yahoo.com wrote:
 
  Is that all the messages in the datanode log? Do you see any SHUTDOWN 
  message also?
  
  -Bharath
  
  
  
  
  From: Panayotis Antonopoulos antonopoulos...@hotmail.com
  To: common-user@hadoop.apache.org
  Sent: Thursday, May 12, 2011 6:07 PM
  Subject: Datanode doesn't start but there is no exception in the log
  
  
  Hello,
  I am trying to set up Hadoop HDFS in a cluster for the first time. So far I 
  was using pseudo-distributed mode on my PC at home and everything was 
  working perfectly.
  Tha NameNode starts but the DataNode doesn't start and the log contains the 
  following:
  
  2011-05-13 04:01:13,663 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG: 
  /
  STARTUP_MSG: Starting DataNode
  STARTUP_MSG:   host = clone1/147.102.4.129
  STARTUP_MSG:   args = []
  STARTUP_MSG:   version = 0.20.2-cdh3u0
  STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14; 
  compiled by 'hudson' on Fri Mar 25 19:56:23 PDT 2011
  /
  2011-05-13 04:01:14,019 INFO 
  org.apache.hadoop.security.UserGroupInformation: JAAS Configuration already 
  set up for Hadoop, not re-installing.
  2011-05-13 04:01:14,143 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Registered 
  FSDatasetStatusMBean
  2011-05-13 04:01:14,152 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Opened info server at 50010
  2011-05-13 04:01:14,154 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Balancing bandwith is 
  1048576 bytes/s
  2011-05-13 04:01:14,206 INFO org.mortbay.log: Logging to 
  org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via 
  org.mortbay.log.Slf4jLog
  2011-05-13 04:01:14,272 INFO org.apache.hadoop.http.HttpServer: Added 
  global filtersafety 
  (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Port 
  returned by webServer.getConnectors()[0].getLocalPort() before open() is 
  -1. Opening the listener on 50075
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: 
  listener.getLocalPort() returned 50075 
  webServer.getConnectors()[0].getLocalPort() returned 50075
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Jetty bound 
  to port 50075
  2011-05-13 04:01:14,278 INFO org.mortbay.log: jetty-6.1.26
  2011-05-13 04:01:14,567 INFO org.mortbay.log: Started 
  SelectChannelConnector@0.0.0.0:50075
  2011-05-13 04:01:14,570 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
  Initializing JVM Metrics with processName=DataNode, sessionId=null
  2011-05-13 04:01:14,976 INFO org.apache.hadoop.ipc.Server: Starting Socket 
  Reader #1 for port 50020
  2011-05-13 04:01:14,978 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: 
  Initializing RPC Metrics with hostName=DataNode, port=50020
  2011-05-13 04:01:14,981 INFO 
  org.apache.hadoop.ipc.metrics.RpcDetailedMetrics: Initializing RPC Metrics 
  with hostName=DataNode, port=50020
  2011-05-13 04:01:14,984 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: dnRegistration = 
  DatanodeRegistration(clone1:50010, storageID=, infoPort=50075, 
  ipcPort=50020)
  
  Does anyone know what might be wrong??
  
  Thank you in advance!
  Panagiotis

Re: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread highpointe 
When you say freeze you mean there is nothing rolling in the log?

Sent from my iPhone

On May 13, 2011, at 2:28 AM, Panayotis Antonopoulos 
antonopoulos...@hotmail.com wrote:

 
 There is no shutdown message until I shutdown the DataNode.
 
 I used hostname of the machine that will run the DataNode and I now used the 
 IP but there is no difference.
 Again the DataNode seems to freeze and the output at the log is the one I 
 mentioned before.
 
 
 
 Subject: Re: Datanode doesn't start but there is no exception in the log
 From: highpoint...@gmail.com
 Date: Thu, 12 May 2011 23:59:02 -0600
 To: common-user@hadoop.apache.org
 
 Have you defined the IP
 of the DN in the slaves file?
 
 
 
 Sent from my iPhone
 
 On May 12, 2011, at 7:27 PM, Bharath Mundlapudi bharathw...@yahoo.com 
 wrote:
 
 Is that all the messages in the datanode log? Do you see any SHUTDOWN 
 message also?
 
 -Bharath
 
 
 
 
 From: Panayotis Antonopoulos antonopoulos...@hotmail.com
 To: common-user@hadoop.apache.org
 Sent: Thursday, May 12, 2011 6:07 PM
 Subject: Datanode doesn't start but there is no exception in the log
 
 
 Hello,
 I am trying to set up Hadoop HDFS in a cluster for the first time. So far I 
 was using pseudo-distributed mode on my PC at home and everything was 
 working perfectly.
 Tha NameNode starts but the DataNode doesn't start and the log contains the 
 following:
 
 2011-05-13 04:01:13,663 INFO 
 org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG: 
 /
 STARTUP_MSG: Starting DataNode
 STARTUP_MSG:   host = clone1/147.102.4.129
 STARTUP_MSG:   args = []
 STARTUP_MSG:   version = 0.20.2-cdh3u0
 STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14; 
 compiled by 'hudson' on Fri Mar 25 19:56:23 PDT 2011
 /
 2011-05-13 04:01:14,019 INFO 
 org.apache.hadoop.security.UserGroupInformation: JAAS Configuration already 
 set up for Hadoop, not re-installing.
 2011-05-13 04:01:14,143 INFO 
 org.apache.hadoop.hdfs.server.datanode.DataNode: Registered 
 FSDatasetStatusMBean
 2011-05-13 04:01:14,152 INFO 
 org.apache.hadoop.hdfs.server.datanode.DataNode: Opened info server at 50010
 2011-05-13 04:01:14,154 INFO 
 org.apache.hadoop.hdfs.server.datanode.DataNode: Balancing bandwith is 
 1048576 bytes/s
 2011-05-13 04:01:14,206 INFO org.mortbay.log: Logging to 
 org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via 
 org.mortbay.log.Slf4jLog
 2011-05-13 04:01:14,272 INFO org.apache.hadoop.http.HttpServer: Added 
 global filtersafety 
 (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
 2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Port 
 returned by webServer.getConnectors()[0].getLocalPort() before open() is 
 -1. Opening the listener on 50075
 2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: 
 listener.getLocalPort() returned 50075 
 webServer.getConnectors()[0].getLocalPort() returned 50075
 2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Jetty bound 
 to port 50075
 2011-05-13 04:01:14,278 INFO org.mortbay.log: jetty-6.1.26
 2011-05-13 04:01:14,567 INFO org.mortbay.log: Started 
 SelectChannelConnector@0.0.0.0:50075
 2011-05-13 04:01:14,570 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
 Initializing JVM Metrics with processName=DataNode, sessionId=null
 2011-05-13 04:01:14,976 INFO org.apache.hadoop.ipc.Server: Starting Socket 
 Reader #1 for port 50020
 2011-05-13 04:01:14,978 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: 
 Initializing RPC Metrics with hostName=DataNode, port=50020
 2011-05-13 04:01:14,981 INFO 
 org.apache.hadoop.ipc.metrics.RpcDetailedMetrics: Initializing RPC Metrics 
 with hostName=DataNode, port=50020
 2011-05-13 04:01:14,984 INFO 
 org.apache.hadoop.hdfs.server.datanode.DataNode: dnRegistration = 
 DatanodeRegistration(clone1:50010, storageID=, infoPort=50075, 
 ipcPort=50020)
 
 Does anyone know what might be wrong??
 
 Thank you in advance!
 Panagiotis

RE: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Panayotis Antonopoulos 

There is no other information in the log (although when I run it on my pc and 
it works, there is more information in the log) and also the web page of the 
namenode doesn't contain any live datanodes as it should. 

That's why I said it freezes... I have no idea what is going on...

Please if anyone can help because it is really important to make it work as 
soon as possible (for my diploma thesis) and I really have no idea what might 
go wrong.


 Subject: Re: Datanode doesn't start but there is no exception in the log
 From: highpoint...@gmail.com
 Date: Fri, 13 May 2011 08:22:53 -0600
 To: common-user@hadoop.apache.org
 
 When you say freeze you mean there is nothing rolling in the log?
 
 Sent from my iPhone
 
 On May 13, 2011, at 2:28 AM, Panayotis Antonopoulos 
 antonopoulos...@hotmail.com wrote:
 
  
  There is no shutdown message until I shutdown the DataNode.
  
  I used hostname of the machine that will run the DataNode and I now used 
  the IP but there is no difference.
  Again the DataNode seems to freeze and the output at the log is the one I 
  mentioned before.
  
  
  
  Subject: Re: Datanode doesn't start but there is no exception in the log
  From: highpoint...@gmail.com
  Date: Thu, 12 May 2011 23:59:02 -0600
  To: common-user@hadoop.apache.org
  
  Have you defined the IP
  of the DN in the slaves file?
  
  
  
  Sent from my iPhone
  
  On May 12, 2011, at 7:27 PM, Bharath Mundlapudi bharathw...@yahoo.com 
  wrote:
  
  Is that all the messages in the datanode log? Do you see any SHUTDOWN 
  message also?
  
  -Bharath
  
  
  
  
  From: Panayotis Antonopoulos antonopoulos...@hotmail.com
  To: common-user@hadoop.apache.org
  Sent: Thursday, May 12, 2011 6:07 PM
  Subject: Datanode doesn't start but there is no exception in the log
  
  
  Hello,
  I am trying to set up Hadoop HDFS in a cluster for the first time. So far 
  I was using pseudo-distributed mode on my PC at home and everything was 
  working perfectly.
  Tha NameNode starts but the DataNode doesn't start and the log contains 
  the following:
  
  2011-05-13 04:01:13,663 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG: 
  /
  STARTUP_MSG: Starting DataNode
  STARTUP_MSG:   host = clone1/147.102.4.129
  STARTUP_MSG:   args = []
  STARTUP_MSG:   version = 0.20.2-cdh3u0
  STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14; 
  compiled by 'hudson' on Fri Mar 25 19:56:23 PDT 2011
  /
  2011-05-13 04:01:14,019 INFO 
  org.apache.hadoop.security.UserGroupInformation: JAAS Configuration 
  already set up for Hadoop, not re-installing.
  2011-05-13 04:01:14,143 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Registered 
  FSDatasetStatusMBean
  2011-05-13 04:01:14,152 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Opened info server at 
  50010
  2011-05-13 04:01:14,154 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Balancing bandwith is 
  1048576 bytes/s
  2011-05-13 04:01:14,206 INFO org.mortbay.log: Logging to 
  org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via 
  org.mortbay.log.Slf4jLog
  2011-05-13 04:01:14,272 INFO org.apache.hadoop.http.HttpServer: Added 
  global filtersafety 
  (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Port 
  returned by webServer.getConnectors()[0].getLocalPort() before open() is 
  -1. Opening the listener on 50075
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: 
  listener.getLocalPort() returned 50075 
  webServer.getConnectors()[0].getLocalPort() returned 50075
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Jetty 
  bound to port 50075
  2011-05-13 04:01:14,278 INFO org.mortbay.log: jetty-6.1.26
  2011-05-13 04:01:14,567 INFO org.mortbay.log: Started 
  SelectChannelConnector@0.0.0.0:50075
  2011-05-13 04:01:14,570 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
  Initializing JVM Metrics with processName=DataNode, sessionId=null
  2011-05-13 04:01:14,976 INFO org.apache.hadoop.ipc.Server: Starting 
  Socket Reader #1 for port 50020
  2011-05-13 04:01:14,978 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: 
  Initializing RPC Metrics with hostName=DataNode, port=50020
  2011-05-13 04:01:14,981 INFO 
  org.apache.hadoop.ipc.metrics.RpcDetailedMetrics: Initializing RPC 
  Metrics with hostName=DataNode, port=50020
  2011-05-13 04:01:14,984 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: dnRegistration = 
  DatanodeRegistration(clone1:50010, storageID=, infoPort=50075, 
  ipcPort=50020)
  
  Does anyone know what might be wrong??
  
  Thank you in advance!
  Panagiotis

Re: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Harsh J 
Hello Panayotis,

Could you please post a jstack output of your hung process to look into?

$ jstack PID of DN # will do.

2011/5/13 Panayotis Antonopoulos antonopoulos...@hotmail.com:

 There is no other information in the log (although when I run it on my pc and 
 it works, there is more information in the log) and also the web page of the 
 namenode doesn't contain any live datanodes as it should.

 That's why I said it freezes... I have no idea what is going on...

 Please if anyone can help because it is really important to make it work as 
 soon as possible (for my diploma thesis) and I really have no idea what might 
 go wrong.


 Subject: Re: Datanode doesn't start but there is no exception in the log
 From: highpoint...@gmail.com
 Date: Fri, 13 May 2011 08:22:53 -0600
 To: common-user@hadoop.apache.org

 When you say freeze you mean there is nothing rolling in the log?

 Sent from my iPhone

 On May 13, 2011, at 2:28 AM, Panayotis Antonopoulos 
 antonopoulos...@hotmail.com wrote:

 
  There is no shutdown message until I shutdown the DataNode.
 
  I used hostname of the machine that will run the DataNode and I now used 
  the IP but there is no difference.
  Again the DataNode seems to freeze and the output at the log is the one I 
  mentioned before.
 
 
 
  Subject: Re: Datanode doesn't start but there is no exception in the log
  From: highpoint...@gmail.com
  Date: Thu, 12 May 2011 23:59:02 -0600
  To: common-user@hadoop.apache.org
 
  Have you defined the IP
  of the DN in the slaves file?
 
 
 
  Sent from my iPhone
 
  On May 12, 2011, at 7:27 PM, Bharath Mundlapudi bharathw...@yahoo.com 
  wrote:
 
  Is that all the messages in the datanode log? Do you see any SHUTDOWN 
  message also?
 
  -Bharath
 
 
 
  
  From: Panayotis Antonopoulos antonopoulos...@hotmail.com
  To: common-user@hadoop.apache.org
  Sent: Thursday, May 12, 2011 6:07 PM
  Subject: Datanode doesn't start but there is no exception in the log
 
 
  Hello,
  I am trying to set up Hadoop HDFS in a cluster for the first time. So 
  far I was using pseudo-distributed mode on my PC at home and everything 
  was working perfectly.
  Tha NameNode starts but the DataNode doesn't start and the log contains 
  the following:
 
  2011-05-13 04:01:13,663 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:
  /
  STARTUP_MSG: Starting DataNode
  STARTUP_MSG:   host = clone1/147.102.4.129
  STARTUP_MSG:   args = []
  STARTUP_MSG:   version = 0.20.2-cdh3u0
  STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14; 
  compiled by 'hudson' on Fri Mar 25 19:56:23 PDT 2011
  /
  2011-05-13 04:01:14,019 INFO 
  org.apache.hadoop.security.UserGroupInformation: JAAS Configuration 
  already set up for Hadoop, not re-installing.
  2011-05-13 04:01:14,143 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Registered 
  FSDatasetStatusMBean
  2011-05-13 04:01:14,152 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Opened info server at 
  50010
  2011-05-13 04:01:14,154 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: Balancing bandwith is 
  1048576 bytes/s
  2011-05-13 04:01:14,206 INFO org.mortbay.log: Logging to 
  org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via 
  org.mortbay.log.Slf4jLog
  2011-05-13 04:01:14,272 INFO org.apache.hadoop.http.HttpServer: Added 
  global filtersafety 
  (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Port 
  returned by webServer.getConnectors()[0].getLocalPort() before open() is 
  -1. Opening the listener on 50075
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: 
  listener.getLocalPort() returned 50075 
  webServer.getConnectors()[0].getLocalPort() returned 50075
  2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Jetty 
  bound to port 50075
  2011-05-13 04:01:14,278 INFO org.mortbay.log: jetty-6.1.26
  2011-05-13 04:01:14,567 INFO org.mortbay.log: Started 
  SelectChannelConnector@0.0.0.0:50075
  2011-05-13 04:01:14,570 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
  Initializing JVM Metrics with processName=DataNode, sessionId=null
  2011-05-13 04:01:14,976 INFO org.apache.hadoop.ipc.Server: Starting 
  Socket Reader #1 for port 50020
  2011-05-13 04:01:14,978 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: 
  Initializing RPC Metrics with hostName=DataNode, port=50020
  2011-05-13 04:01:14,981 INFO 
  org.apache.hadoop.ipc.metrics.RpcDetailedMetrics: Initializing RPC 
  Metrics with hostName=DataNode, port=50020
  2011-05-13 04:01:14,984 INFO 
  org.apache.hadoop.hdfs.server.datanode.DataNode: dnRegistration = 
  DatanodeRegistration(clone1:50010, storageID=, infoPort=50075, 
  ipcPort=50020)
 
  Does anyone know what might be wrong??
 
  Thank you in advance!
  Panagiotis
 




-- 
Harsh

RE: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Panayotis Antonopoulos 

Thank you for your help!
Here is the result of the command that you said:

panton@clone1:~/hadoop-0.20.203.0$ jstack 6320
2011-05-13 20:31:59
Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.0-b11 mixed mode):

Attach Listener daemon prio=10 tid=0x409c9800 nid=0x1999 waiting on 
condition [0x]
   java.lang.Thread.State: RUNNABLE

pool-1-thread-1 prio=10 tid=0x7f50f035f800 nid=0x1973 runnable 
[0x7f50f6caf000]
   java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
- locked 0xeb403378 (a sun.nio.ch.Util$2)
- locked 0xeb403368 (a java.util.Collections$UnmodifiableSet)
- locked 0xeb403160 (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:84)
at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:332)
- locked 0xeb403548 (a 
org.apache.hadoop.ipc.Server$Listener$Reader)
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:662)

Timer-0 daemon prio=10 tid=0x7f50f84e6800 nid=0x195b in Object.wait() 
[0x7f50f6db]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on 0xec47a0a8 (a java.util.TaskQueue)
at java.util.TimerThread.mainLoop(Timer.java:509)
- locked 0xec47a0a8 (a java.util.TaskQueue)
at java.util.TimerThread.run(Timer.java:462)

899599744@qtp-1416044437-1 - Acceptor0 SelectChannelConnector@0.0.0.0:50075 
prio=10 tid=0x7f50f8414800 nid=0x1926 runnable [0x7f50f6eb1000]
   java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
- locked 0xec473870 (a sun.nio.ch.Util$2)
- locked 0xec473860 (a java.util.Collections$UnmodifiableSet)
- locked 0xec4733c8 (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
at 
org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:498)
at org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:192)
at 
org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
at 
org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:708)
at 
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

1620640756@qtp-1416044437-0 prio=10 tid=0x7f50f83f0800 nid=0x1925 in 
Object.wait() [0x7f50f75eb000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on 0xec473a88 (a 
org.mortbay.thread.QueuedThreadPool$PoolThread)
at 
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:626)
- locked 0xec473a88 (a 
org.mortbay.thread.QueuedThreadPool$PoolThread)

refreshUsed-/home/users/panton/hadoop-0.20.203.0/dfs/data daemon prio=10 
tid=0x7f50f83f8000 nid=0x191f waiting on condition [0x7f50f77fb000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.apache.hadoop.fs.DU$DURefreshThread.run(DU.java:80)
at java.lang.Thread.run(Thread.java:662)

Timer for 'DataNode' metrics system daemon prio=10 tid=0x7f50f83d3000 
nid=0x18f5 in Object.wait() [0x7f50f7b02000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on 0xec4407f8 (a java.util.TaskQueue)
at java.util.TimerThread.mainLoop(Timer.java:509)
- locked 0xec4407f8 (a java.util.TaskQueue)
at java.util.TimerThread.run(Timer.java:462)

RMI TCP Accept-0 daemon prio=10 tid=0x7f50f835f800 nid=0x18e5 runnable 
[0x7f50f7d04000]
   java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:408)
- locked 0xec3e3930 (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:462)
at java.net.ServerSocket.accept(ServerSocket.java:430)
at 
sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:34)
at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369)
at

Re: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Harsh J 
Hey,

2011/5/13 Panayotis Antonopoulos antonopoulos...@hotmail.com:
 899599744@qtp-1416044437-1 - Acceptor0 SelectChannelConnector@0.0.0.0:50075 
 prio=10 tid=0x7f50f8414800 nid=0x1926 runnable [0x7f50f6eb1000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
    - locked 0xec473870 (a sun.nio.ch.Util$2)
    - locked 0xec473860 (a java.util.Collections$UnmodifiableSet)
    - locked 0xec4733c8 (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
    at 
 org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:498)
    at org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:192)
    at 
 org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
    at 
 org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:708)
    at 
 org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

and,

 1620640756@qtp-1416044437-0 prio=10 tid=0x7f50f83f0800 nid=0x1925 in 
 Object.wait() [0x7f50f75eb000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on 0xec473a88 (a 
 org.mortbay.thread.QueuedThreadPool$PoolThread)
    at 
 org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:626)
    - locked 0xec473a88 (a 
 org.mortbay.thread.QueuedThreadPool$PoolThread)

and,

 main prio=10 tid=0x40115000 nid=0x18d2 runnable [0x7f5101d2e000]
   java.lang.Thread.State: RUNNABLE
    at java.io.FileInputStream.readBytes(Native Method)
    at java.io.FileInputStream.read(FileInputStream.java:220)
    at 
 sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedBytes(SeedGenerator.java:493)
    at sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:117)
    at 
 sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:114)
    at 
 sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:171)
    - locked 0xeb430cc0 (a sun.security.provider.SecureRandom)
    at java.security.SecureRandom.nextBytes(SecureRandom.java:433)
    - locked 0xeb430f60 (a java.security.SecureRandom)
    at java.security.SecureRandom.next(SecureRandom.java:455)
    at java.util.Random.nextInt(Random.java:257)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.setNewStorageID(DataNode.java:608)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.register(DataNode.java:629)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.runDatanodeDaemon(DataNode.java:1378)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1438)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1563)
    at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1573)

lead me to believe that you're running into this:
http://search-hadoop.com/m/7Giae6vLWR1/securerandomsubj=Re+Entropy+Pool+and+HDFS+FS+Commands+Hanging+System

Just give it some time and it should start up soon (you may generate
some other activity on the DN to help it get some fresh entropy).
Sometimes it may take up to a minute at start up.

-- 
Harsh J

Re: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Harsh J 
Actually, only the last mentioned stack matters. Also see:
https://issues.apache.org/jira/browse/HDFS-1835

On Fri, May 13, 2011 at 11:15 PM, Harsh J ha...@cloudera.com wrote:
 Hey,

 2011/5/13 Panayotis Antonopoulos antonopoulos...@hotmail.com:
 899599744@qtp-1416044437-1 - Acceptor0 
 SelectChannelConnector@0.0.0.0:50075 prio=10 tid=0x7f50f8414800 
 nid=0x1926 runnable [0x7f50f6eb1000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
    - locked 0xec473870 (a sun.nio.ch.Util$2)
    - locked 0xec473860 (a java.util.Collections$UnmodifiableSet)
    - locked 0xec4733c8 (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
    at 
 org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:498)
    at org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:192)
    at 
 org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
    at 
 org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:708)
    at 
 org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

 and,

 1620640756@qtp-1416044437-0 prio=10 tid=0x7f50f83f0800 nid=0x1925 in 
 Object.wait() [0x7f50f75eb000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on 0xec473a88 (a 
 org.mortbay.thread.QueuedThreadPool$PoolThread)
    at 
 org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:626)
    - locked 0xec473a88 (a 
 org.mortbay.thread.QueuedThreadPool$PoolThread)

 and,

 main prio=10 tid=0x40115000 nid=0x18d2 runnable 
 [0x7f5101d2e000]
   java.lang.Thread.State: RUNNABLE
    at java.io.FileInputStream.readBytes(Native Method)
    at java.io.FileInputStream.read(FileInputStream.java:220)
    at 
 sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedBytes(SeedGenerator.java:493)
    at 
 sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:117)
    at 
 sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:114)
    at 
 sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:171)
    - locked 0xeb430cc0 (a sun.security.provider.SecureRandom)
    at java.security.SecureRandom.nextBytes(SecureRandom.java:433)
    - locked 0xeb430f60 (a java.security.SecureRandom)
    at java.security.SecureRandom.next(SecureRandom.java:455)
    at java.util.Random.nextInt(Random.java:257)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.setNewStorageID(DataNode.java:608)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.register(DataNode.java:629)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.runDatanodeDaemon(DataNode.java:1378)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1438)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1563)
    at 
 org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1573)

 lead me to believe that you're running into this:
 http://search-hadoop.com/m/7Giae6vLWR1/securerandomsubj=Re+Entropy+Pool+and+HDFS+FS+Commands+Hanging+System

 Just give it some time and it should start up soon (you may generate
 some other activity on the DN to help it get some fresh entropy).
 Sometimes it may take up to a minute at start up.

 --
 Harsh J




-- 
Harsh J

RE: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Panayotis Antonopoulos 

I have been waiting for hours to see if it will ever start but it doesn't.
I will check the links you sent me.

Thanks again for your help!!!

 From: ha...@cloudera.com
 Date: Fri, 13 May 2011 23:18:40 +0530
 Subject: Re: Datanode doesn't start but there is no exception in the log
 To: common-user@hadoop.apache.org
 
 Actually, only the last mentioned stack matters. Also see:
 https://issues.apache.org/jira/browse/HDFS-1835
 
 On Fri, May 13, 2011 at 11:15 PM, Harsh J ha...@cloudera.com wrote:
  Hey,
 
  2011/5/13 Panayotis Antonopoulos antonopoulos...@hotmail.com:
  899599744@qtp-1416044437-1 - Acceptor0 
  SelectChannelConnector@0.0.0.0:50075 prio=10 tid=0x7f50f8414800 
  nid=0x1926 runnable [0x7f50f6eb1000]
java.lang.Thread.State: RUNNABLE
 at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
 at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
 at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
 at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
 - locked 0xec473870 (a sun.nio.ch.Util$2)
 - locked 0xec473860 (a java.util.Collections$UnmodifiableSet)
 - locked 0xec4733c8 (a sun.nio.ch.EPollSelectorImpl)
 at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
 at 
  org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:498)
 at org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:192)
 at 
  org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
 at 
  org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:708)
 at 
  org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
 
  and,
 
  1620640756@qtp-1416044437-0 prio=10 tid=0x7f50f83f0800 nid=0x1925 in 
  Object.wait() [0x7f50f75eb000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
 at java.lang.Object.wait(Native Method)
 - waiting on 0xec473a88 (a 
  org.mortbay.thread.QueuedThreadPool$PoolThread)
 at 
  org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:626)
 - locked 0xec473a88 (a 
  org.mortbay.thread.QueuedThreadPool$PoolThread)
 
  and,
 
  main prio=10 tid=0x40115000 nid=0x18d2 runnable 
  [0x7f5101d2e000]
java.lang.Thread.State: RUNNABLE
 at java.io.FileInputStream.readBytes(Native Method)
 at java.io.FileInputStream.read(FileInputStream.java:220)
 at 
  sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedBytes(SeedGenerator.java:493)
 at 
  sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:117)
 at 
  sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:114)
 at 
  sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:171)
 - locked 0xeb430cc0 (a sun.security.provider.SecureRandom)
 at java.security.SecureRandom.nextBytes(SecureRandom.java:433)
 - locked 0xeb430f60 (a java.security.SecureRandom)
 at java.security.SecureRandom.next(SecureRandom.java:455)
 at java.util.Random.nextInt(Random.java:257)
 at 
  org.apache.hadoop.hdfs.server.datanode.DataNode.setNewStorageID(DataNode.java:608)
 at 
  org.apache.hadoop.hdfs.server.datanode.DataNode.register(DataNode.java:629)
 at 
  org.apache.hadoop.hdfs.server.datanode.DataNode.runDatanodeDaemon(DataNode.java:1378)
 at 
  org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1438)
 at 
  org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1563)
 at 
  org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1573)
 
  lead me to believe that you're running into this:
  http://search-hadoop.com/m/7Giae6vLWR1/securerandomsubj=Re+Entropy+Pool+and+HDFS+FS+Commands+Hanging+System
 
  Just give it some time and it should start up soon (you may generate
  some other activity on the DN to help it get some fresh entropy).
  Sometimes it may take up to a minute at start up.
 
  --
  Harsh J
 
 
 
 
 -- 
 Harsh J

Re: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread sridhar basam 
Sounds like your entropy pool is exhausted blocking the process. What sort
of hardware/os combo are you running this on?

 Sridhar

RE: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Panayotis Antonopoulos 

I am using the cluster of the Lab of my university, so I have limited access to 
its settings.
It consists of 10 nodes with Intel Xeon CPUs and GNU/Linux 2.6.38

Is there a way to solve the problem without changing the settings of the 
cluster?

I am trying to use the patch that Harsh J sent me but I haven't managed to 
install it on hadoop properly yet.
I have never installed a patch before...

 Date: Fri, 13 May 2011 15:09:38 -0400
 Subject: Re: Datanode doesn't start but there is no exception in the log
 From: s...@basam.org
 To: common-user@hadoop.apache.org
 
 Sounds like your entropy pool is exhausted blocking the process. What sort
 of hardware/os combo are you running this on?
 
  Sridhar

RE: Datanode doesn't start but there is no exception in the log

2011-05-13 Thread Panayotis Antonopoulos 

I installed the patch:
https://issues.apache.org/jira/browse/HDFS-1835
that Harsh J told me and now everything works great!!!

I hope that this change won't create other problems.

Thanks to everyone and especially to Harsh J!!
I would never find the problem without your help!!

 From: antonopoulos...@hotmail.com
 To: common-user@hadoop.apache.org
 Subject: RE: Datanode doesn't start but there is no exception in the log
 Date: Sat, 14 May 2011 03:49:21 +0300
 
 
 I am using the cluster of the Lab of my university, so I have limited access 
 to its settings.
 It consists of 10 nodes with Intel Xeon CPUs and GNU/Linux 2.6.38
 
 Is there a way to solve the problem without changing the settings of the 
 cluster?
 
 I am trying to use the patch that Harsh J sent me but I haven't managed to 
 install it on hadoop properly yet.
 I have never installed a patch before...
 
  Date: Fri, 13 May 2011 15:09:38 -0400
  Subject: Re: Datanode doesn't start but there is no exception in the log
  From: s...@basam.org
  To: common-user@hadoop.apache.org
  
  Sounds like your entropy pool is exhausted blocking the process. What sort
  of hardware/os combo are you running this on?
  
   Sridhar

Re: Datanode doesn't start but there is no exception in the log

2011-05-12 Thread Bharath Mundlapudi 
Is that all the messages in the datanode log? Do you see any SHUTDOWN message 
also?

-Bharath




From: Panayotis Antonopoulos antonopoulos...@hotmail.com
To: common-user@hadoop.apache.org
Sent: Thursday, May 12, 2011 6:07 PM
Subject: Datanode doesn't start but there is no exception in the log


Hello,
I am trying to set up Hadoop HDFS in a cluster for the first time. So far I was 
using pseudo-distributed mode on my PC at home and everything was working 
perfectly.
Tha NameNode starts but the DataNode doesn't start and the log contains the 
following:

2011-05-13 04:01:13,663 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
STARTUP_MSG: 
/
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = clone1/147.102.4.129
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 0.20.2-cdh3u0
STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14; compiled 
by 'hudson' on Fri Mar 25 19:56:23 PDT 2011
/
2011-05-13 04:01:14,019 INFO org.apache.hadoop.security.UserGroupInformation: 
JAAS Configuration already set up for Hadoop, not re-installing.
2011-05-13 04:01:14,143 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
Registered FSDatasetStatusMBean
2011-05-13 04:01:14,152 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
Opened info server at 50010
2011-05-13 04:01:14,154 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
Balancing bandwith is 1048576 bytes/s
2011-05-13 04:01:14,206 INFO org.mortbay.log: Logging to 
org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
2011-05-13 04:01:14,272 INFO org.apache.hadoop.http.HttpServer: Added global 
filtersafety (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Port returned 
by webServer.getConnectors()[0].getLocalPort() before open() is -1. Opening the 
listener on 50075
2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: 
listener.getLocalPort() returned 50075 
webServer.getConnectors()[0].getLocalPort() returned 50075
2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Jetty bound to 
port 50075
2011-05-13 04:01:14,278 INFO org.mortbay.log: jetty-6.1.26
2011-05-13 04:01:14,567 INFO org.mortbay.log: Started 
SelectChannelConnector@0.0.0.0:50075
2011-05-13 04:01:14,570 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
Initializing JVM Metrics with processName=DataNode, sessionId=null
2011-05-13 04:01:14,976 INFO org.apache.hadoop.ipc.Server: Starting Socket 
Reader #1 for port 50020
2011-05-13 04:01:14,978 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: 
Initializing RPC Metrics with hostName=DataNode, port=50020
2011-05-13 04:01:14,981 INFO org.apache.hadoop.ipc.metrics.RpcDetailedMetrics: 
Initializing RPC Metrics with hostName=DataNode, port=50020
2011-05-13 04:01:14,984 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
dnRegistration = DatanodeRegistration(clone1:50010, storageID=, infoPort=50075, 
ipcPort=50020)

Does anyone know what might be wrong??

Thank you in advance!
Panagiotis

Re: Datanode doesn't start but there is no exception in the log

2011-05-12 Thread highpointe 
Have you defined the IP
of the DN in the slaves file?



Sent from my iPhone

On May 12, 2011, at 7:27 PM, Bharath Mundlapudi bharathw...@yahoo.com wrote:

 Is that all the messages in the datanode log? Do you see any SHUTDOWN message 
 also?
 
 -Bharath
 
 
 
 
 From: Panayotis Antonopoulos antonopoulos...@hotmail.com
 To: common-user@hadoop.apache.org
 Sent: Thursday, May 12, 2011 6:07 PM
 Subject: Datanode doesn't start but there is no exception in the log
 
 
 Hello,
 I am trying to set up Hadoop HDFS in a cluster for the first time. So far I 
 was using pseudo-distributed mode on my PC at home and everything was working 
 perfectly.
 Tha NameNode starts but the DataNode doesn't start and the log contains the 
 following:
 
 2011-05-13 04:01:13,663 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
 STARTUP_MSG: 
 /
 STARTUP_MSG: Starting DataNode
 STARTUP_MSG:   host = clone1/147.102.4.129
 STARTUP_MSG:   args = []
 STARTUP_MSG:   version = 0.20.2-cdh3u0
 STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14; compiled 
 by 'hudson' on Fri Mar 25 19:56:23 PDT 2011
 /
 2011-05-13 04:01:14,019 INFO org.apache.hadoop.security.UserGroupInformation: 
 JAAS Configuration already set up for Hadoop, not re-installing.
 2011-05-13 04:01:14,143 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
 Registered FSDatasetStatusMBean
 2011-05-13 04:01:14,152 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
 Opened info server at 50010
 2011-05-13 04:01:14,154 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
 Balancing bandwith is 1048576 bytes/s
 2011-05-13 04:01:14,206 INFO org.mortbay.log: Logging to 
 org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via 
 org.mortbay.log.Slf4jLog
 2011-05-13 04:01:14,272 INFO org.apache.hadoop.http.HttpServer: Added global 
 filtersafety (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
 2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Port returned 
 by webServer.getConnectors()[0].getLocalPort() before open() is -1. Opening 
 the listener on 50075
 2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: 
 listener.getLocalPort() returned 50075 
 webServer.getConnectors()[0].getLocalPort() returned 50075
 2011-05-13 04:01:14,278 INFO org.apache.hadoop.http.HttpServer: Jetty bound 
 to port 50075
 2011-05-13 04:01:14,278 INFO org.mortbay.log: jetty-6.1.26
 2011-05-13 04:01:14,567 INFO org.mortbay.log: Started 
 SelectChannelConnector@0.0.0.0:50075
 2011-05-13 04:01:14,570 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
 Initializing JVM Metrics with processName=DataNode, sessionId=null
 2011-05-13 04:01:14,976 INFO org.apache.hadoop.ipc.Server: Starting Socket 
 Reader #1 for port 50020
 2011-05-13 04:01:14,978 INFO org.apache.hadoop.ipc.metrics.RpcMetrics: 
 Initializing RPC Metrics with hostName=DataNode, port=50020
 2011-05-13 04:01:14,981 INFO 
 org.apache.hadoop.ipc.metrics.RpcDetailedMetrics: Initializing RPC Metrics 
 with hostName=DataNode, port=50020
 2011-05-13 04:01:14,984 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: 
 dnRegistration = DatanodeRegistration(clone1:50010, storageID=, 
 infoPort=50075, ipcPort=50020)
 
 Does anyone know what might be wrong??
 
 Thank you in advance!
 Panagiotis