FAQ
Hi John,

You'll need to be more specific about what you're trying to do. There are a
bunch of environment variables that affect how Hadoop runs, and we do set
them as part of running a datanode, or tasktracker, etc, but these are not
all relevant to a client that's connecting to Hadoop to do work.

Under normal conditions, it's sufficient for a client to find the hadoop
configuration directory under /etc and use its contents to get up and
running. In this scenario, you don't need to set any extra variables.

If you can explain what your situation is, I can hopefully give you more
relevant information.

--phil

On 8 April 2013 22:43, John Meza wrote:

Is there a list of the environment variables that SCM creates when
installing CDH?
Many pages refer to HADOOP_HOME, HADOOP_INSTALL, etc.

Or does the user have to manually create the env variables if needed?
If so, is there a list of typical directories that SCM installs to?

thanks
John

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