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A J
Asked: 2014-04-04 01:24:51 +0800 CST

A nifty tool for checking whether the expected Hadoop processes are running is jps :: PROBLEM

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hadoopz@ubuntu:/usr/local/hadoop$ jps

The program 'jps' can be found in the following packages:

  • openjdk-7-jdk
  • openjdk-6-jdk

Ask your administrator to install one of them

When I check jps for Hadoop, I am getting the above result....

13.04

1 Answers

  1. Best Answer

    This is not a Hadoop problem; you just have to put the jps executable into your path or create an alias for jps. The location of the jps executable is somewhere under the /usr/lib/jvm directory. To find the location of the jps executable browse to the /usr/lib/jvm directory and search for jps from there.

    First you have to install openjdk-6-jdk. (If you want to install openjdk-7-jdk read the last paragraph.) Open the terminal and type:

    sudo apt-get install openjdk-6-jdk

    Next make an alias for the jps executable. Example of a command to create an alias for jps:

    alias jps='/usr/lib/jvm/java-6-openjdk/bin/jps'

    If you want to install openjdk-7-jdk instead of openjdk-6-jdk, you can still use the preceding two commands by substituting the string openjdk-7-jdk for openjdk-6-jdk

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