Manish If you read the error message, it says "connection refused". Big clue :-)
You probably have firewall configured. Raj Sent from my iPad Please excuse the typos. On Feb 12, 2012, at 1:41 AM, Manish Maheshwari <mylogi...@gmail.com> wrote: > Thanks, > > I tried with hadoop-1.0.0 and JRE6 and things are looking good. I was able > to format the namenode and bring up the NameNode 'calvin-PC:47110' and > Hadoop Map/Reduce Administration webpages. > > Further i tried the example of TestDFSIO but get the below error of > connection refused. > > -bash-4.1$ cd share/hadoop > -bash-4.1$ ../../bin/hadoop jar hadoop-test-1.0.0.jar TestDFSIO –write > –nrFiles 1 –filesize 10 > Warning: $HADOOP_HOME is deprecated. > > TestDFSIO.0.0.4 > 12/02/12 15:05:08 INFO fs.TestDFSIO: nrFiles = 1 > 12/02/12 15:05:08 INFO fs.TestDFSIO: fileSize (MB) = 1 > 12/02/12 15:05:08 INFO fs.TestDFSIO: bufferSize = 1000000 > 12/02/12 15:05:08 INFO fs.TestDFSIO: creating control file: 1 mega bytes, 1 > files > 12/02/12 15:05:08 INFO fs.TestDFSIO: created control files for: 1 files > 12/02/12 15:05:11 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 0 time(s). > 12/02/12 15:05:13 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 1 time(s). > 12/02/12 15:05:15 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 2 time(s). > 12/02/12 15:05:17 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 3 time(s). > 12/02/12 15:05:19 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 4 time(s). > 12/02/12 15:05:21 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 5 time(s). > 12/02/12 15:05:23 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 6 time(s). > 12/02/12 15:05:25 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 7 time(s). > 12/02/12 15:05:27 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 8 time(s). > 12/02/12 15:05:29 INFO ipc.Client: Retrying connect to server: calvin-PC/ > 127.0.0.1:8021. Already tried 9 time(s). > java.net.ConnectException: Call to calvin-PC/127.0.0.1:8021 failed on > connection exception: java.net.ConnectException: Connection refused: no > further information > at org.apache.hadoop.ipc.Client.wrapException(Client.java:1095) > at org.apache.hadoop.ipc.Client.call(Client.java:1071) > at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225) > at org.apache.hadoop.mapred.$Proxy2.getProtocolVersion(Unknown > Source) > at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396) > at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379) > at > org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:480) > at org.apache.hadoop.mapred.JobClient.init(JobClient.java:474) > at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:457) > at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1260) > at org.apache.hadoop.fs.TestDFSIO.runIOTest(TestDFSIO.java:257) > at org.apache.hadoop.fs.TestDFSIO.readTest(TestDFSIO.java:295) > at org.apache.hadoop.fs.TestDFSIO.run(TestDFSIO.java:459) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > at org.apache.hadoop.fs.TestDFSIO.main(TestDFSIO.java:317) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) > at > org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) > at org.apache.hadoop.test.AllTestDriver.main(AllTestDriver.java:81) > 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:567) > at > org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) > at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:656) > at > org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:434) > at > org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:560) > at > org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:184) > at org.apache.hadoop.ipc.Client.getConnection(Client.java:1202) > at org.apache.hadoop.ipc.Client.call(Client.java:1046) > ... 26 more > -bash-4.1$ > > Is this a problem with ssh. ssh daemon is still working. i could not get > anything on this on google. > > Thanks > Manish > > > > > > On Sat, Feb 11, 2012 at 4:37 PM, N Keywal <nkey...@gmail.com> wrote: >> >> Hi, >> >> You should try with java 1.6. >> See >> > http://hadoop.apache.org/common/docs/r0.22.0/single_node_setup.html#PreReqs >> >> You don't want to use the hadoop release 1.0? >> >> N. >> >> On Sat, Feb 11, 2012 at 11:51 AM, Manish Maheshwari <mylogi...@gmail.com >> wrote: >> >>> Hi All, >>> >>> I made 4-5 attempts in configuring the namenode but always get a Java > Error >>> >>> I am using hadoop-0.22.0 on cygwin. SSH is working >>> >>> I have installed JDK 5 in JAVA_HOME=/cygdrive/c/Java/jdk1.5.0_22 and > same >>> is set in hadoop-env.sh as well as the cygwin .bash_profile. >>> When i log in into Cygwin i see the JAVA_HOME set. >>> >>> Below is the error - >>> >>> -bash-4.1$ pwd >>> /cygdrive/c/hadoop/hadoop-0.22.0 >>> -bash-4.1$ bin/hadoop namenode -format >>> *cygpath: can't convert empty path >>> **java.lang.NoClassDefFoundError: org/apache/hadoop/util/PlatformName >>> **Exception in thread "main" cygpath: can't convert empty path >>> cygpath: can't convert empty path >>> *DEPRECATED: Use of this script to execute hdfs command is deprecated. >>> Instead use the hdfs command for it. >>> >>> cygpath: can't convert empty path >>> java.lang.NoClassDefFoundError: org/apache/hadoop/util/PlatformName >>> Exception in thread "main" cygpath: can't convert empty path >>> cygpath: can't convert empty path >>> java.lang.UnsupportedClassVersionError: Bad version number in .class > file >>> at java.lang.ClassLoader.defineClass1(Native Method) >>> at java.lang.ClassLoader.defineClass(ClassLoader.java:621) >>> at >>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) >>> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) >>> at java.net.URLClassLoader.access$100(URLClassLoader.java:56) >>> at java.net.URLClassLoader$1.run(URLClassLoader.java:195) >>> at java.security.AccessController.doPrivileged(Native Method) >>> at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >>> at java.lang.ClassLoader.loadClass(ClassLoader.java:307) >>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) >>> at java.lang.ClassLoader.loadClass(ClassLoader.java:252) >>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) >>> Exception in thread "main" -bash-4.1$ >>> -bash-4.1$ >>> >>> -bash-4.1$ grep JAVA hadoop-env.sh >>> # The only required environment variable is JAVA_HOME. All others are >>> # set JAVA_HOME in this file, so that it is correctly defined on >>> # export JAVA_HOME=/usr/lib/j2sdk1.6-sun >>> *export JAVA_HOME=/cygdrive/c/Java/jdk1.5.0_22 >>> * >>> Any help is much appreciated. >>> >>> Thanks, >>> Manish >>>
