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From "Mohsen B.Sarmadi" <mohsen.bsarm...@gmail.com>
Subject [No Subject]
Date Fri, 26 Apr 2013 18:23:08 GMT
Hi,
I am newbi in hadoop,
I am running hadoop on Mac X 10. and i can't load any files in Hdfs.

first of all, i am getting this error

localhost: 2013-04-26 19:08:31.330 java[14436:1b03] Unable to load realm
info from SCDynamicStore

which from some posts i understand i should add this line to hadoop-env.sh.
but it didn't fix it.

export HADOOP_OPTS="-Djava.security.krb5.realm=OX.AC.UK-Djava.security.krb5.kdc=kdc0.ox.ac.uk:
kdc1.ox.ac.uk"
second , i can't load any files in Hdfs. i am trying to run hadoop in
pseudo-distributed
mode so i used configuration from
here<http://hadoop.apache.org/docs/r1.0.4/single_node_setup.html> for
it.
i am sure hadoop is loading my configurations because i have added a java
home into hadoop-env.sh successfully.
this is error i get:

m0h3n:hadoop-1.0.4 mohsen$ ./bin/hadoop dfs -put conf input
2013-04-26 19:18:04.185 java[14559:1703] Unable to load realm info from
SCDynamicStore
13/04/26 19:18:04 WARN hdfs.DFSClient: DataStreamer Exception:
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/user/mohsen/input/capacity-scheduler.xml could only be replicated to 0
nodes, instead of 1
 at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
 at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
 at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
 at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
 at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)

at org.apache.hadoop.ipc.Client.call(Client.java:1070)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
 at com.sun.proxy.$Proxy1.addBlock(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:601)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
 at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
at com.sun.proxy.$Proxy1.addBlock(Unknown Source)
 at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373)
 at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829)

13/04/26 19:18:04 WARN hdfs.DFSClient: Error Recovery for block null bad
datanode[0] nodes == null
13/04/26 19:18:04 WARN hdfs.DFSClient: Could not get block locations.
Source file "/user/mohsen/input/capacity-scheduler.xml" - Aborting...
put: java.io.IOException: File /user/mohsen/input/capacity-scheduler.xml
could only be replicated to 0 nodes, instead of 1
13/04/26 19:18:04 ERROR hdfs.DFSClient: Exception closing file
/user/mohsen/input/capacity-scheduler.xml :
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/user/mohsen/input/capacity-scheduler.xml could only be replicated to 0
nodes, instead of 1
 at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
 at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
 at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
 at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
 at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)

org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/user/mohsen/input/capacity-scheduler.xml could only be replicated to 0
nodes, instead of 1
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558)
 at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
 at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
 at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
at java.security.AccessController.doPrivileged(Native Method)
 at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
 at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)

at org.apache.hadoop.ipc.Client.call(Client.java:1070)
 at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
at com.sun.proxy.$Proxy1.addBlock(Unknown Source)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
 at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
 at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
 at com.sun.proxy.$Proxy1.addBlock(Unknown Source)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510)
 at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589)
 at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829)
-- 
Mohsen B.S


this is the result of jps.
m0h3n:hadoop-1.0.4 mohsen$ jps
357
14588 Jps
14436 TaskTracker
14261 SecondaryNameNode
14059 NameNode
14335 JobTracker


Please help me to overcome this problem

regards
Mohsen

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