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
