The exception "java.io.IOException: NameNode is not formatted." indicated you should format the NameNode first. hadoop -fs namenode -format
On Tue, Jan 25, 2011 at 12:47 PM, Jim X <jim.p...@gmail.com> wrote: > I am trying to install Hadoop by following the instruction from > http://alans.se/blog/2010/hadoop-hbase-cygwin-windows-7-x64/. > > 1. I can not open http://localhost:9100 or http://localhost:9101 after > I run "bin/start-dfs.sh" and "bin/start-mapred.sh" without any error > message being printed. > > 2. I shutdown cygwin shell. > > 3. I start another cygwin shell, run "bin/start-dfs.sh" and get the > following message from the shell. > $ bin/start-dfs.sh > starting namenode, logging to > C:\cygwin\hadoop\0.21.0\logs/hadoop-Jim-namenode-Jim-PC.out > localhost: datanode running as process 6908. Stop it first. > localhost: secondarynamenode running as process 6156. Stop it first. > > > > Log message in > C:\cygwin\hadoop\0.21.0\logs/hadoop-Jim-namenode-Jim-PC.out are listed > as below: > > 2011-01-24 23:10:11,202 INFO > org.apache.hadoop.hdfs.server.namenode.NameNode: NameNode up at: > 127.0.0.1/127.0.0.1:9100 > 2011-01-24 23:10:36,187 INFO org.apache.hadoop.ipc.Server: IPC Server > listener on 9100: readAndProcess threw exception java.io.IOException: > Unable to read authentication method. Count of bytes read: 0 > java.io.IOException: Unable to read authentication method > at > org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1079) > at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:525) > at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:332) > 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:619) > > .... > > > 2011-01-24 23:41:47,815 INFO > org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Registered > FSNamesystemStatusMBean > 2011-01-24 23:41:47,915 ERROR > org.apache.hadoop.hdfs.server.namenode.FSNamesystem: FSNamesystem > initialization failed. > java.io.IOException: NameNode is not formatted. > at > org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:434) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:110) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:291) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:270) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:271) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:303) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:433) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:421) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1359) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368) > > > I am running Window Vista, JDK 1.6. I appreciate your help. > > > Jim > -- -----李平
