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From Muhammad Mudassar <mudassa...@gmail.com>
Subject data node stops on slave
Date Fri, 23 Apr 2010 11:59:31 GMT
Hi

I am following tutorial running hadoop on ubuntu linux (multinode cluster)
*
http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster)
*<http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29>
for  configuring 2 node cluster but i am facing problem data node on slave
machine goes down after some time here I am sending log file of datanode on
slave machine and log file of namenode at master machine kindly help me to
solve the issue.

*Log file of data node on slave machine*

2010-04-23 17:37:17,690 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = hadoop-desktop/127.0.1.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 0.20.2
STARTUP_MSG:   build =
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20 -r
911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 UTC 2010
************************************************************/
2010-04-23 17:37:19,115 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: master/10.3.31.221:54310. Already tried 0 time(s).
2010-04-23 17:37:25,303 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Registered
FSDatasetStatusMBean
2010-04-23 17:37:25,305 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Opened info server at 50010
2010-04-23 17:37:25,307 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Balancing bandwith is
1048576 bytes/s
2010-04-23 17:37:30,777 INFO org.mortbay.log: Logging to
org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
org.mortbay.log.Slf4jLog
2010-04-23 17:37:30,833 INFO org.apache.hadoop.http.HttpServer: Port
returned by webServer.getConnectors()[0].getLocalPort() before open() is -1.
Opening the listener on 50075
2010-04-23 17:37:30,833 INFO org.apache.hadoop.http.HttpServer:
listener.getLocalPort() returned 50075
webServer.getConnectors()[0].getLocalPort() returned 50075
2010-04-23 17:37:30,833 INFO org.apache.hadoop.http.HttpServer: Jetty bound
to port 50075
2010-04-23 17:37:30,833 INFO org.mortbay.log: jetty-6.1.14
2010-04-23 17:37:31,242 INFO org.mortbay.log: Started
SelectChannelConnector@0.0.0.0:50075
2010-04-23 17:37:31,279 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
Initializing JVM Metrics with processName=DataNode, sessionId=null
2010-04-23 17:37:36,608 INFO org.apache.hadoop.ipc.metrics.RpcMetrics:
Initializing RPC Metrics with hostName=DataNode, port=50020
2010-04-23 17:37:36,610 INFO org.apache.hadoop.ipc.Server: IPC Server
Responder: starting
2010-04-23 17:37:36,610 INFO org.apache.hadoop.ipc.Server: IPC Server
listener on 50020: starting
2010-04-23 17:37:36,610 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 0 on 50020: starting
2010-04-23 17:37:36,610 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 1 on 50020: starting
2010-04-23 17:37:36,611 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 2 on 50020: starting
2010-04-23 17:37:36,611 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: dnRegistration =
DatanodeRegistration(hadoop-desktop:50010,
storageID=DS-463609775-127.0.1.1-50010-1271833984369, infoPort=50075,
ipcPort=50020)
2010-04-23 17:37:36,639 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: DatanodeRegistration(
10.3.31.220:50010, storageID=DS-463609775-127.0.1.1-50010-1271833984369,
infoPort=50075, ipcPort=50020)In DataNode.run, data =
FSDataset{dirpath='/home/hadoop/Desktop/dfs/datahadoop/dfs/data/current'}
2010-04-23 17:37:36,639 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: using BLOCKREPORT_INTERVAL
of 3600000msec Initial delay: 0msec
2010-04-23 17:37:36,653 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: BlockReport of 17 blocks
got processed in 6 msecs
2010-04-23 17:37:36,665 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Starting Periodic block
scanner.
2010-04-23 17:37:39,641 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: DatanodeCommand action:
DNA_REGISTER
2010-04-23 17:37:42,645 WARN
org.apache.hadoop.hdfs.server.datanode.DataNode: DataNode is shutting down:
org.apache.hadoop.ipc.RemoteException:
org.apache.hadoop.hdfs.protocol.UnregisteredDatanodeException: Data node
10.3.31.220:50010 is attempting to report storage ID
DS-463609775-127.0.1.1-50010-1271833984369. Node 10.3.31.221:50010 is
expected to serve this storage.
    at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getDatanode(FSNamesystem.java:3920)
    at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.processReport(FSNamesystem.java:2891)
    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)

    at org.apache.hadoop.ipc.Client.call(Client.java:740)
    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
    at $Proxy4.blockReport(Unknown Source)
    at
org.apache.hadoop.hdfs.server.datanode.DataNode.offerService(DataNode.java:756)
    at
org.apache.hadoop.hdfs.server.datanode.DataNode.run(DataNode.java:1186)
    at java.lang.Thread.run(Thread.java:619)

2010-04-23 17:37:42,648 INFO org.apache.hadoop.ipc.Server: Stopping server
on 50020
2010-04-23 17:37:42,648 INFO org.apache.hadoop.ipc.Server: Stopping IPC
Server listener on 50020
2010-04-23 17:37:42,648 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 2 on 50020: exiting
2010-04-23 17:37:42,649 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Waiting for threadgroup to
exit, active threads is 1
2010-04-23 17:37:42,649 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 1 on 50020: exiting
2010-04-23 17:37:42,649 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 0 on 50020: exiting
2010-04-23 17:37:42,649 INFO org.apache.hadoop.ipc.Server: Stopping IPC
Server Responder
2010-04-23 17:37:42,649 WARN
org.apache.hadoop.hdfs.server.datanode.DataNode: DatanodeRegistration(
10.3.31.220:50010, storageID=DS-463609775-127.0.1.1-50010-1271833984369,
infoPort=50075, ipcPort=50020):DataXceiveServer:
java.nio.channels.AsynchronousCloseException
    at
java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:185)
    at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:152)
    at sun.nio.ch.ServerSocketAdaptor.accept(ServerSocketAdaptor.java:84)
    at
org.apache.hadoop.hdfs.server.datanode.DataXceiverServer.run(DataXceiverServer.java:130)
    at java.lang.Thread.run(Thread.java:619)

2010-04-23 17:37:42,680 INFO
org.apache.hadoop.hdfs.server.datanode.DataBlockScanner: Exiting
DataBlockScanner thread.
2010-04-23 17:37:43,649 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Waiting for threadgroup to
exit, active threads is 0
2010-04-23 17:37:43,761 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: DatanodeRegistration(
10.3.31.220:50010, storageID=DS-463609775-127.0.1.1-50010-1271833984369,
infoPort=50075, ipcPort=50020):Finishing DataNode in:
FSDataset{dirpath='/home/hadoop/Desktop/dfs/datahadoop/dfs/data/current'}
2010-04-23 17:37:43,761 INFO org.apache.hadoop.ipc.Server: Stopping server
on 50020
2010-04-23 17:37:43,761 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Waiting for threadgroup to
exit, active threads is 0
2010-04-23 17:37:43,762 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at hadoop-desktop/127.0.1.1
************************************************************/

*
log file of name node on master machine*

2010-04-23 16:37:17,736 INFO
org.apache.hadoop.hdfs.server.namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = mudassar-desktop/127.0.1.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 0.20.2
STARTUP_MSG:   build =
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20 -r
911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 UTC 2010
************************************************************/
2010-04-23 16:37:18,547 INFO org.apache.hadoop.ipc.metrics.RpcMetrics:
Initializing RPC Metrics with hostName=NameNode, port=54310
2010-04-23 16:37:18,558 INFO
org.apache.hadoop.hdfs.server.namenode.NameNode: Namenode up at: master/
10.3.31.221:54310
2010-04-23 16:37:18,560 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
Initializing JVM Metrics with processName=NameNode, sessionId=null
2010-04-23 16:37:18,560 INFO
org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics: Initializing
NameNodeMeterics using context
object:org.apache.hadoop.metrics.spi.NullContext
2010-04-23 16:37:18,634 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
fsOwner=hadoop,hadoop,admin
2010-04-23 16:37:18,634 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: supergroup=supergroup
2010-04-23 16:37:18,634 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
isPermissionEnabled=true
2010-04-23 16:37:18,648 INFO
org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMetrics:
Initializing FSNamesystemMetrics using context
object:org.apache.hadoop.metrics.spi.NullContext
2010-04-23 16:37:18,649 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Registered
FSNamesystemStatusMBean
2010-04-23 16:37:18,775 INFO org.apache.hadoop.hdfs.server.common.Storage:
Number of files = 40
2010-04-23 16:37:18,784 INFO org.apache.hadoop.hdfs.server.common.Storage:
Number of files under construction = 0
2010-04-23 16:37:18,784 INFO org.apache.hadoop.hdfs.server.common.Storage:
Image file of size 4763 loaded in 0 seconds.
2010-04-23 16:37:18,784 INFO org.apache.hadoop.hdfs.server.common.Storage:
Edits file /home/hadoop/Desktop/dfs/datahadoop/dfs/name/current/edits of
size 4 edits # 0 loaded in 0 seconds.
2010-04-23 16:37:18,806 INFO org.apache.hadoop.hdfs.server.common.Storage:
Image file of size 4763 saved in 0 seconds.
2010-04-23 16:37:18,835 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Finished loading
FSImage in 230 msecs
2010-04-23 16:37:18,851 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe
mode ON.
The ratio of reported blocks 0.0000 has not reached the threshold 0.9990.
Safe mode will be turned off automatically.
2010-04-23 16:37:24,338 INFO org.mortbay.log: Logging to
org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
org.mortbay.log.Slf4jLog
2010-04-23 16:37:24,389 INFO org.apache.hadoop.http.HttpServer: Port
returned by webServer.getConnectors()[0].getLocalPort() before open() is -1.
Opening the listener on 50070
2010-04-23 16:37:24,389 INFO org.apache.hadoop.http.HttpServer:
listener.getLocalPort() returned 50070
webServer.getConnectors()[0].getLocalPort() returned 50070
2010-04-23 16:37:24,389 INFO org.apache.hadoop.http.HttpServer: Jetty bound
to port 50070
2010-04-23 16:37:24,390 INFO org.mortbay.log: jetty-6.1.14
2010-04-23 16:37:24,890 INFO org.mortbay.log: Started
SelectChannelConnector@0.0.0.0:50070
2010-04-23 16:37:24,891 INFO
org.apache.hadoop.hdfs.server.namenode.NameNode: Web-server up at:
0.0.0.0:50070
2010-04-23 16:37:24,903 INFO org.apache.hadoop.ipc.Server: IPC Server
Responder: starting
2010-04-23 16:37:24,905 INFO org.apache.hadoop.ipc.Server: IPC Server
listener on 54310: starting
2010-04-23 16:37:24,910 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 0 on 54310: starting
2010-04-23 16:37:24,911 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 1 on 54310: starting
2010-04-23 16:37:24,911 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 2 on 54310: starting
2010-04-23 16:37:24,911 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 3 on 54310: starting
2010-04-23 16:37:24,911 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 4 on 54310: starting
2010-04-23 16:37:24,911 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 5 on 54310: starting
2010-04-23 16:37:24,917 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 7 on 54310: starting
2010-04-23 16:37:24,927 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 8 on 54310: starting
2010-04-23 16:37:24,935 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 6 on 54310: starting
2010-04-23 16:37:24,937 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 9 on 54310: starting
2010-04-23 16:37:36,600 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node registration from
10.3.31.220:50010storage DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:36,602 INFO org.apache.hadoop.net.NetworkTopology: Adding a
new node: /default-rack/10.3.31.220:50010
2010-04-23 16:37:36,615 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.processReport: block blk_-6150136027661787226_1027 on
10.3.31.220:50010 size 518 does not belong to any file.
2010-04-23 16:37:36,615 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.addToInvalidates: blk_-6150136027661787226 is added to invalidSet
of 10.3.31.220:50010
2010-04-23 16:37:36,615 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.processReport: block blk_-4836367697260863721_1028 on
10.3.31.220:50010 size 458 does not belong to any file.
2010-04-23 16:37:36,615 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.addToInvalidates: blk_-4836367697260863721 is added to invalidSet
of 10.3.31.220:50010
2010-04-23 16:37:36,615 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.processReport: block blk_8159389050888609678_1025 on
10.3.31.220:50010 size 4 does not belong to any file.
2010-04-23 16:37:36,615 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.addToInvalidates: blk_8159389050888609678 is added to invalidSet
of 10.3.31.220:50010
2010-04-23 16:37:38,641 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node registration from
10.3.31.221:50010storage DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:38,641 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node 10.3.31.220:50010 is replaced by
10.3.31.221:50010 with the same storageID
DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:38,642 INFO org.apache.hadoop.net.NetworkTopology: Removing
a node: /default-rack/10.3.31.220:50010
2010-04-23 16:37:38,642 INFO org.apache.hadoop.net.NetworkTopology: Adding a
new node: /default-rack/10.3.31.221:50010
2010-04-23 16:37:38,669 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe
mode extension entered.
The ratio of reported blocks 1.0000 has reached the threshold 0.9990. Safe
mode will be turned off automatically in 29 seconds.
2010-04-23 16:37:39,604 FATAL org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.getDatanode: Data node 10.3.31.220:50010 is attempting to report
storage ID DS-463609775-127.0.1.1-50010-1271833984369. Node
10.3.31.221:50010 is expected to serve this storage.
2010-04-23 16:37:39,605 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node registration from
10.3.31.220:50010storage DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:39,605 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node 10.3.31.221:50010 is replaced by
10.3.31.220:50010 with the same storageID
DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:39,605 INFO org.apache.hadoop.net.NetworkTopology: Removing
a node: /default-rack/10.3.31.221:50010
2010-04-23 16:37:39,605 INFO org.apache.hadoop.net.NetworkTopology: Adding a
new node: /default-rack/10.3.31.220:50010
2010-04-23 16:37:41,644 FATAL org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.getDatanode: Data node 10.3.31.221:50010 is attempting to report
storage ID DS-463609775-127.0.1.1-50010-1271833984369. Node
10.3.31.220:50010 is expected to serve this storage.
2010-04-23 16:37:41,645 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node registration from
10.3.31.221:50010storage DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:41,645 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.registerDatanode: node 10.3.31.220:50010 is replaced by
10.3.31.221:50010 with the same storageID
DS-463609775-127.0.1.1-50010-1271833984369
2010-04-23 16:37:41,645 INFO org.apache.hadoop.net.NetworkTopology: Removing
a node: /default-rack/10.3.31.220:50010
2010-04-23 16:37:41,646 INFO org.apache.hadoop.net.NetworkTopology: Adding a
new node: /default-rack/10.3.31.221:50010
2010-04-23 16:37:42,606 FATAL org.apache.hadoop.hdfs.StateChange: BLOCK*
NameSystem.getDatanode: Data node 10.3.31.220:50010 is attempting to report
storage ID DS-463609775-127.0.1.1-50010-1271833984369. Node
10.3.31.221:50010 is expected to serve this storage.
2010-04-23 16:37:42,607 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 7 on 54310, call blockReport(DatanodeRegistration(10.3.31.220:50010,
storageID=DS-463609775-127.0.1.1-50010-1271833984369, infoPort=50075,
ipcPort=50020), [J@1320a41) from 10.3.31.220:33776: error:
org.apache.hadoop.hdfs.protocol.UnregisteredDatanodeException: Data node
10.3.31.220:50010 is attempting to report storage ID
DS-463609775-127.0.1.1-50010-1271833984369. Node 10.3.31.221:50010 is
expected to serve this storage.
org.apache.hadoop.hdfs.protocol.UnregisteredDatanodeException: Data node
10.3.31.220:50010 is attempting to report storage ID
DS-463609775-127.0.1.1-50010-1271833984369. Node 10.3.31.221:50010 is
expected to serve this storage.
    at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getDatanode(FSNamesystem.java:3920)
    at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.processReport(FSNamesystem.java:2891)
    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)
2010-04-23 16:37:58,671 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe
mode ON.
The ratio of reported blocks 1.0000 has reached the threshold 0.9990. Safe
mode will be turned off automatically in 9 seconds.
2010-04-23 16:38:08,673 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Total number of blocks
= 15
2010-04-23 16:38:08,673 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of invalid
blocks = 0
2010-04-23 16:38:08,673 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of
under-replicated blocks = 8
2010-04-23 16:38:08,673 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of
over-replicated blocks = 0
2010-04-23 16:38:08,673 INFO org.apache.hadoop.hdfs.StateChange: STATE*
Leaving safe mode after 50 secs.
2010-04-23 16:38:08,673 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe
mode is OFF.
2010-04-23 16:38:08,673 INFO org.apache.hadoop.hdfs.StateChange: STATE*
Network topology has 1 racks and 1 datanodes
2010-04-23 16:38:08,673 INFO org.apache.hadoop.hdfs.StateChange: STATE*
UnderReplicatedBlocks has 8 blocks
2010-04-23 16:38:09,856 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* ask
10.3.31.221:50010 to delete  blk_-6150136027661787226_1027
blk_8159389050888609678_1025 blk_-4836367697260863721_1028
2010-04-23 16:42:37,019 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Roll Edit Log from
10.3.31.221
2010-04-23 16:42:37,019 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of transactions:
0 Total time for transactions(ms): 0Number of transactions batched in Syncs:
0 Number of syncs: 0 SyncTimes(ms): 0
2010-04-23 16:42:37,398 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Roll FSImage from
10.3.31.221
2010-04-23 16:42:37,398 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of transactions:
0 Total time for transactions(ms): 0Number of transactions batched in Syncs:
0 Number of syncs: 1 SyncTimes(ms): 1

-- 
Regards

Muhammad Mudassar

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