I would recommend that you first go through this video<http://www.youtube.com/watch?v=ziqx2hJY8Hg>and this blog<http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/>. These would clear out your concept as well as your current problem and provide the base for your further progress,
*Lokesh Chandra Basu* B. Tech Computer Science and Engineering Indian Institute of Technology, Roorkee India(GMT +5hr 30min) +91-8267805498 On Sat, Jun 1, 2013 at 9:32 AM, murali adireddy <[email protected]>wrote: > Hi , > > 1. Make sure Name Node & Job Tracker processes are running or not. > > You can verify them using "Jps" command > 2. If you use /hadoop/bin/start-dfs.sh it will start only NameNode & Data > Node and not Job Tracker. > To run Job Tracker you need use "start-all.sh" instead of "start-dfs.sh" > > 3. Verifying Namenodes & Job Trackers running through urls. > > Name Node: http://localhost:50070 > Job Tracker: http://localhost:50030 > > 4. Verify the configuration settings @ hadoop/conf/*.xml > Make sure you define Name node details in the "core-site.xml" and Job > tracker details in "mapred-site.xml" > > > > Thanks, > Murali > > > On Fri, May 31, 2013 at 3:07 PM, sumit piparsania < > [email protected]> wrote: > >> Hi, >> >> I am new to hadoop. I am facing some issues while executing the below >> command. >> Kindly help me resolving this issue. >> >> >> command: bin/hadoop jar hadoop-examples-*.jar grep input output >> 'dfs[a-z.]+' >> Error: >> bin/hadoop: line 320: C:\Program: command not found >> 13/05/31 12:59:58 INFO ipc.Client: Retrying connect to server: localhost/ >> 127.0.0.1:9001. Already tried 0 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:00 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 1 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:02 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 2 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:04 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 3 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:06 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 4 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:08 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 5 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:10 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 6 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:12 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 7 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:14 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 8 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> 13/05/31 13:00:16 INFO ipc.Client: Retrying connect to server: >> localhost/127.0.0.1:9001. Already tried 9 time(s); retry policy is >> RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) >> java.net.ConnectException: Call to localhost/127.0.0.1:9001 failed on >> connection exception: java.net.ConnectException: Connection refused: no >> further information >> at org.apache.hadoop.ipc.Client.wrapException(Client.java:1136) >> at org.apache.hadoop.ipc.Client.call(Client.java:1112) >> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229) >> at org.apache.hadoop.mapred.$Proxy2.getProtocolVersion(Unknown Source) >> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411) >> at org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:499) >> at org.apache.hadoop.mapred.JobClient.init(JobClient.java:490) >> at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:473) >> at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1322) >> at org.apache.hadoop.examples.Grep.run(Grep.java:69) >> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) >> at org.apache.hadoop.examples.Grep.main(Grep.java:93) >> 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.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) >> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) >> at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:64) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at org.apache.hadoop.util.RunJar.main(RunJar.java:156) >> Caused by: java.net.ConnectException: Connection refused: no further >> information >> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) >> at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599) >> at >> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) >> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:511) >> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:481) >> at >> org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:453) >> at >> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:579) >> at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:202) >> at org.apache.hadoop.ipc.Client.getConnection(Client.java:1243) >> at org.apache.hadoop.ipc.Client.call(Client.java:1087) >> ... 22 more >> >> > >
