jobtracker and tasktracker not opening

2014-06-01T17:22:20

i have successfully installed ubuntu 12.04 and hadoop 2.3.0.

after entering the jps command i find the output as below

4135 jps
2582 SeconadaryNameNode
3143 NodeManager
2394 Namenode
2391 Datanode
3021 ResourceManager

why it is not showing the jobtracker and tasktracker. i tried start-mapred.sh but it shows command not found.(i searched the hadoop directory no such file found so i think the newer version i.e 2.0.3 has deprecated it and must be having some other way of starting jobtracker and tasktracker)

localhost:50070 working absolutely fine but localhost:50030 and localhost:50060 shows unable to connect.

so anybody can help me out in this?

Copyright License:
Author:「user3677291」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to:https://stackoverflow.com/questions/23978391/jobtracker-and-tasktracker-not-opening

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Copyright License:Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.