title: cluster not working with cdh4 tarball installation
body: <p>I am trying with installing CDH4 using tarball version , but facing issues as in steps taken by me are as below :</p>
  
  <p>i downloaded tarball from link <code>https://ccp.cloudera.com/display/SUPPORT/CDH4+Downloadable+Tarballs</code></p>
  
  <p>i first untar the hadoop-0.20-mapreduce-0.20.2+1341 tar file</p>
  
  <p>i did with configuration changes in</p>
  
  <pre><code>hadoop-0.20-mapreduce-0.20.2+1341  since i wanted mrv1 not yarn .
  </code></pre>
  
  <p>the first thing as per mentioned in cdh4 installation was to configure HDFS </p>
  
  <p>i made the relevant changes in </p>
  
  <pre><code>core-site.xml
  hdfs-site.xml
  mapred-site.xml
  masters --- which is my namenode
  slaves ---- my datanodes
  </code></pre>
  
  <p>copied the hadoop configurations on all the nodes in the cluster</p>
  
  <p>did a namenode format .</p>
  
  <p>after format i had to start the cluster , but in the bin folder could not </p>
  
  <p>find start-all.sh script . so in that case i started with command</p>
  
  <pre><code>bin/start-mapred.sh
  </code></pre>
  
  <p>in the logs it shows jobtracker started and tasktracker started on slave nodes
  but when i do a jps </p>
  
  <p>i can see only </p>
  
  <pre><code>jobtracker
  jps
  </code></pre>
  
  <p>further going did a datanode start on the datanode with below command </p>
  
  <pre><code>bin/hadoop-daemon.sh start datanode .
  </code></pre>
  
  <p>it shows datanode started . </p>
  
  <p>Namenode not getting started , tasktracker not getting started .</p>
  
  <p>when i checked with my logs i could see </p>
  
  <pre><code>ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join
  java.io.FileNotFoundException: webapps/hdfs not found in CLASSPATH
  </code></pre>
  
  <p>not sure what is stopping my cluster to work .</p>
  
  <p>earlier i had a cdh3 running . so i stopped the cdh3 cluster . Then i started with installing cdh4 . Also i changed all the directories hdfs-site.xml i.e. pointed it new empty directories for namenode and datanode and not the used the ones defined in cdh3.</p>
  
  <p>but still nothing seems to help .</p>
  
  <p>Also i turned off firewall since i do have a root access but same thing it did not work for me .</p>
  
  <p>Any help on above will be great help.</p>
  
  <hr>
  
  <p>thank you for kind reply but</p>
  
  <p>I do not have </p>
  
  <pre><code>start-dfs.sh file in bin folder 
  </code></pre>
  
  <p>only files in /home/hadoop-2.0.0-mr1-cdh4.2.0/bin folder are as </p>
  
  <pre><code>start-mapred.sh
  stop-mapred.sh
  hadoop-daemon.sh
  hadoop-daemons.sh
  hadoop-config.sh
  rcc
  slaves.sh
  hadoop
  </code></pre>
  
  <p>command now i am using are as below </p>
  
  <p>for starting datanode :</p>
  
  <pre><code>for x in /home/hadoop-2.0.0-mr1-cdh4.2.0/bin/hadoop-* ; do $x start datanode ; done ;
  </code></pre>
  
  <p>for starting namenode :</p>
  
  <pre><code>bin/start-mapred.sh
  </code></pre>
  
  <p>still i am working on the same issue .</p>