When i run nmap on 54310 on the slave it gives
[ ~]$ nmap -PN -p54310 master Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2009-06-05 19:14 PDT Interesting ports on master (***.**.**.***): PORT STATE SERVICE 54310/tcp filtered unknown Nmap finished: 1 IP address (1 host up) scanned in 0.094 seconds On Fri, Jun 5, 2009 at 7:13 PM, asif md <asif.d...@gmail.com> wrote: > I've found the problem but am clueless about how to fix it. > > wen i did the following on the master after running " > $HADOOP_HOME/bin/start-dfs.sh" > > [ ~]$ nmap -PN -p54310 localhost > > Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2009-06-05 17:04 > PDT > Interesting ports on localhost (127.0.0.1): > PORT STATE SERVICE > *54310/tcp closed unknown* > > Nmap finished: 1 IP address (1 host up) scanned in 5.605 seconds > > > It is showing that 54310 < my namenode > is closed. > > ********************* > hadoop-site.xml > ********************* > > <?xml version="1.0"?> > <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> > > <!-- Put site-specific property overrides in this file. --> > <configuration> > > <property> > <name>hadoop.tmp.dir</name> > <value>/home/utdhadoop1/Hadoop/hadoop-0.18.3/hadoop-datastore/hadoop-${ > user.name}</value> > <description>A base for other temporary directories.</description> > </property> > > <property> > <name>fs.default.name</name> > <value>hdfs://master:54310</value> > <description>The name of the default file system. A URI whose > scheme and authority determine the FileSystem implementation. The > uri's scheme determines the config property (fs.SCHEME.impl) naming > the FileSystem implementation class. The uri's authority is used to > determine the host, port, etc. for a filesystem.</description> > </property> > > <property> > <name>mapred.job.tracker</name> > <value>master:54311</value> > <description>The host and port that the MapReduce job tracker runs > at. If "local", then jobs are run in-process as a single map > and reduce task. > </description> > </property> > > <property> > <name>dfs.replication</name> > <value>2</value> > <description>Default block replication. > The actual number of replications can be specified when the file is > created. > The default is used if replication is not specified in create time. > </description> > </property> > > </configuration> > ************************** > > also running netstat at master is giving the followin output: > > [ ~]$ sudo netstat -a -t -n -p | grep java | grep LISTEN* > tcp 0 0 :::50020 :::* > LISTEN 3683/java > tcp 0 0 :::38148 :::* > LISTEN 3576/java > tcp 0 0 ::ffff:198.55.35.229:54310 > :::* LISTEN 3576/java > tcp 0 0 :::50090 :::* > LISTEN 3846/java > tcp 0 0 :::49134 :::* > LISTEN 3683/java > tcp 0 0 :::50070 :::* > LISTEN 3576/java > tcp 0 0 :::50010 :::* > LISTEN 3683/java > tcp 0 0 :::50075 :::* > LISTEN 3683/java > tcp 0 0 :::51837 :::* > LISTEN 3846/java > > Does anyone have any suggestions how to fix this? > > Thanks and Regards > > Asif. > > > On Fri, Jun 5, 2009 at 5:24 PM, asif md <asif.d...@gmail.com> wrote: > >> Hello all, >> >> I'm strugling to fix the 'NO ROUTE TO HOST' problem on my Only Slave. The >> datanode log is as follows >> >> 2009-06-05 15:12:41,076 INFO org.apache.hadoop.dfs.DataNode: STARTUP_MSG: >> /************************************************************ >> STARTUP_MSG: Starting DataNode >> STARTUP_MSG: host = ******** >> STARTUP_MSG: args = [] >> STARTUP_MSG: version = 0.18.3 >> STARTUP_MSG: build = >> https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r >> 736250; compiled by 'ndaley' on Thu Jan 22 23:12:08 UTC 2009 >> ************************************************************/ >> 2009-06-05 15:12:42,346 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ********. Already tried 0 time(s). >> 2009-06-05 15:12:43,349 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ******** Already tried 1 time(s). >> 2009-06-05 15:12:44,352 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ********. Already tried 2 time(s). >> 2009-06-05 15:12:45,355 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ******** Already tried 3 time(s). >> 2009-06-05 15:12:46,358 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ********. Already tried 4 time(s). >> 2009-06-05 15:12:47,374 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ******** Already tried 5 time(s). >> 2009-06-05 15:12:48,377 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ******** Already tried 6 time(s). >> 2009-06-05 15:12:49,380 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ********. Already tried 7 time(s). >> 2009-06-05 15:12:50,383 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ********. Already tried 8 time(s). >> 2009-06-05 15:12:51,386 INFO org.apache.hadoop.ipc.Client: Retrying >> connect to server: ********. Already tried 9 time(s). >> 2009-06-05 15:12:51,389 ERROR org.apache.hadoop.dfs.DataNode: >> java.io.IOException: Call to ******** failed on local exception: >> java.net.NoRouteToHostException: No route to host >> at org.apache.hadoop.ipc.Client.wrapException(Client.java:751) >> at org.apache.hadoop.ipc.Client.call(Client.java:719) >> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216) >> at org.apache.hadoop.dfs.$Proxy4.getProtocolVersion(Unknown Source) >> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:348) >> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:335) >> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:372) >> at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:309) >> at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:286) >> at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:277) >> at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:223) >> at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:3071) >> at >> org.apache.hadoop.dfs.DataNode.instantiateDataNode(DataNode.java:3026) >> at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:3034) >> at org.apache.hadoop.dfs.DataNode.main(DataNode.java:3156) >> Caused by: java.net.NoRouteToHostException: No route to host >> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) >> at >> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574) >> at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:100) >> at >> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:301) >> at >> org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:178) >> at org.apache.hadoop.ipc.Client.getConnection(Client.java:820) >> at org.apache.hadoop.ipc.Client.call(Client.java:705) >> ... 13 more >> >> 2009-06-05 15:12:51,390 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG: >> >> /************************************************************ >> SHUTDOWN_MSG: Shutting down DataNode at******************************* >> >> Has anyone fixed this problem before. Because i've found similar problems >> on this list but solutions are not working. >> >> Can anyone suggest any solution for this problem. >> >> Thanks >> >> Asif. >> >> >
