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From David Ginzburg <ginz...@hotmail.com>
Subject slave dies on a Virtual machine
Date Thu, 25 Feb 2010 16:22:57 GMT


Hi,
I have two physical machines running windows OS (a windows 7 and a windows xp)I have installed
VirtualBox  on the two machines and ubuntu karmic VM images having jdk 6.up18 and hadoop.I
followed the instructions on http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster)
using the two linux VMs
The hadoop folders or any file are not on an NFS folder.The replication factor is 2.

When I run start-all.sh the second data node on the remote slave machine dies, I have attached
the log files.
10.10.1.168 runs a nameNode and a dataNode 10.10.1.29 runs only a dataNode
Exceptions from name node log:2010-02-25 17:57:43,395 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit:
ugi=hadoop,hadoop,adm,dialout,cdrom,plugdev,lpadmin,admin,sambashare	ip=/10.10.1.168	cmd=listStatus
src=/home/hadoop/hadoop/tmp/mapred/system	dst=null	perm=null2010-02-25 17:57:43,401 INFO org.apache.hadoop.ipc.Server:
IPC Server handler 6 on 54310, call delete(/home/hadoop/hadoop/tmp/mapred/system, true) from
10.10.1.168:40976: error: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot
delete /home/hadoop/hadoop/tmp/mapred/system. Name node is in safe mode.The ratio of reported
blocks 1.0000 has reached the threshold 0.9990. Safe mode will be turned off automatically
in 22 seconds.org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete /home/hadoop/hadoop/tmp/mapred/system.
Name node is in safe mode.The ratio of reported blocks 1.0000 has reached the threshold 0.9990.
Safe mode will be turned off automatically in 22 seconds.	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1696)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1676)	at org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:517)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at
java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
at org.apache.hadoop.ipc.Server$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)2010-02-25 17:57:53,413 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit:
ugi=hadoop,hadoop,adm,dialout,cdrom,plugdev,lpadmin,admin,sambashare	ip=/10.10.1.168	cmd=listStatus
src=/home/hadoop/hadoop/tmp/mapred/system	dst=null	perm=null2010-02-25 17:57:53,417 INFO org.apache.hadoop.ipc.Server:
IPC Server handler 8 on 54310, call delete(/home/hadoop/hadoop/tmp/mapred/system, true) from
10.10.1.168:40977: error: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot
delete /home/hadoop/hadoop/tmp/mapred/system. Name node is in safe mode.The ratio of reported
blocks 1.0000 has reached the threshold 0.9990. Safe mode will be turned off automatically
in 12 seconds.org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete /home/hadoop/hadoop/tmp/mapred/system.
Name node is in safe mode.The ratio of reported blocks 1.0000 has reached the threshold 0.9990.
Safe mode will be turned off automatically in 12 seconds.	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1696)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1676)	at org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:517)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at
java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
at org.apache.hadoop.ipc.Server$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)


2010-02-25 17:57:17,376 INFO org.apache.hadoop.ipc.Server: IPC Server listener on 54310: starting2010-02-25
17:57:29,778 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.registerDatanode:
node registration from 10.10.1.29:50010 storage DS-1854135747-127.0.1.1-50010-12670230245952010-02-25
17:57:29,798 INFO org.apache.hadoop.net.NetworkTopology: Adding a new node: /default-rack/10.10.1.29:500102010-02-25
17:57:29,860 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.processReport: block
blk_-7905823761682315237_1483 on 10.10.1.29:50010 size 4 does not belong to any file.2010-02-25
17:57:29,860 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.addToInvalidates:
blk_-7905823761682315237 is added to invalidSet of 10.10.1.29:500102010-02-25 17:57:35,869
INFO org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.registerDatanode: node 10.10.1.29:50010
is replaced by 10.10.1.168:50010 with the same storageID DS-1854135747-127.0.1.1-50010-12670230245952010-02-25
17:57:35,869 INFO org.apache.hadoop.net.NetworkTopology: Removing a node: /default-rack/10.10.1.29:50010
....

-50010-1267023024595. Node 10.10.1.168:50010 is expected to serve this storage.org.apache.hadoop.hdfs.protocol.UnregisteredDatanodeException:
Data node 10.10.1.29:50010 is attempting to report storage ID DS-1854135747-127.0.1.1-50010-1267023024595.
Node 10.10.1.168:50010 is expected to serve this storage.	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getDatanode(FSNamesystem.java:3914)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.processReport(FSNamesystem.java:2885)
at org.apache.hadoop.hdfs.server.namenode.NameNode.blockReport(NameNode.java:715)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)	at org.apache.hadoop.ipc.Server$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)2010-02-25
17:57:43,395 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit: ugi=hadoop,hadoop,adm,dialout,cdrom,plugdev,lpadmin,admin,sambashare
ip=/10.10.1.168	cmd=listStatus	src=/home/hadoop/hadoop/tmp/mapred/system	dst=null	perm=null2010-02-25
17:57:43,401 INFO org.apache.hadoop.ipc.Server: IPC Server handler 6 on 54310, call delete(/home/hadoop/hadoop/tmp/mapred/system,
true) from 10.10.1.168:40976: error: org.apache.hadoop.hdfs.server.namenode.SafeModeException:
Cannot delete /home/hadoop/hadoop/tmp/mapred/system. Name node is in safe mode.The ratio of
reported blocks 1.0000 has reached the threshold 0.9990. Safe mode will be turned off automatically
in 22 seconds.org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete /home/hadoop/hadoop/tmp/mapred/system.
Name node is in safe mode.The ratio of reported blocks 1.0000 has reached the threshold 0.9990.
Safe mode will be turned off automatically in 22 seconds.	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1696)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1676)	at org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:517)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at
java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
at org.apache.hadoop.ipc.Server$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)




 		 	   		  
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