Hadoop: Cannot use Jps command

Question

The problem is

  hduser@saket-K53SM:/usr/local/hadoop$ jps
  The program \'jps\' can be found in the following packages:
  * openjdk-6-jdk
  * openjdk-7-jdk
         


        

Answer 1

That is actually not a Hadoop problem. Hadoop does not use JPS.

If JPS can't be found, you have to put it into your path or create an alias. The JPS executable can be found under $JAVA_HOME/bin/jps.

The alias for example could be:

alias jps='/usr/lib/jvm/jdk1.6.0_33/bin/jps'

Or if you don't care about using JPS, you could instead do a

ps aux | grep java

which will approx. give you the same result ;)