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Posted to common-user@hadoop.apache.org by Karol Rybak <ka...@gmail.com> on 2007/12/05 11:07:53 UTC

Problem starting namenode

Hello yesterday my cluster of machines stopped, since then the namenode
doesn't want to start in hadoop-nutch-namenode.log i get a following error
each time when i try to start it

2007-12-05 07:44:26,649 ERROR dfs.NameNode - java.io.EOFException
        at org.apache.hadoop.io.ArrayWritable.readFields(ArrayWritable.java
:90)
        at org.apache.hadoop.dfs.FSEditLog.loadFSEdits(FSEditLog.java:501)
        at org.apache.hadoop.dfs.FSImage.loadFSEdits(FSImage.java:733)
        at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:620)
        at org.apache.hadoop.dfs.FSImage.recoverTransitionRead(FSImage.java
:222)
        at org.apache.hadoop.dfs.FSDirectory.loadFSImage(FSDirectory.java
:76)
        at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:221)
        at org.apache.hadoop.dfs.NameNode.init(NameNode.java:130)
        at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:168)
        at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:795)
        at org.apache.hadoop.dfs.NameNode.main(NameNode.java:804)

Any suggestions on that error. Does that mean that namenode data is
corrupted ?

I'm using hadoop 0.15

-- 
Karol Rybak
Programista / Programmer
Sekcja aplikacji / Applications section
Wyższa Szkoła Informatyki i Zarządzania / University of Internet Technology
and Management
+48(17)8661277

Re: Problem starting namenode

Posted by Karol Rybak <ka...@gmail.com>.
BTW tasks stopped while reducing with following error yesterday

java.net.ConnectException: Connection refused at
java.net.PlainSocketImpl.socketConnect(Native Method) at
java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at
java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at
java.net.Socket.connect(Socket.java:519) at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:152) at
org.apache.hadoop.ipc.Client.getConnection(Client.java:542) at
org.apache.hadoop.ipc.Client.call(Client.java:471) at
org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:184) at
org.apache.hadoop.dfs.$Proxy1.getProtocolVersion(Unknown Source) at
org.apache.hadoop.ipc.RPC.getProxy(RPC.java:269) at
org.apache.hadoop.dfs.DFSClient.createNamenode(DFSClient.java:147) at
org.apache.hadoop.dfs.DFSClient.(DFSClient.java:161) at
org.apache.hadoop.dfs.DistributedFileSystem.initialize(
DistributedFileSystem.java:65) at org.apache.hadoop.fs.FileSystem.get(
FileSystem.java:159) at org.apache.hadoop.fs.FileSystem.getNamed(
FileSystem.java:118) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:90)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1759)

-- 
Karol Rybak
Programista / Programmer
Sekcja aplikacji / Applications section
Wyższa Szkoła Informatyki i Zarządzania / University of Internet Technology
and Management
+48(17)8661277