Re: Linux cluster application

Andrew Watkins <andrew@cse.msstate.edu> writes:

> Thanks. I suppose my question is less about the mechanisms for
> actually starting the servers and more about where to install the
> servers, where they should be running, etc. For example, if I'm using
> a shared file system across each node in the cluster and postgres has
> been installed in, say, /home/user/pgres, and initdb has initialized
> the database on, say, /home/user/pgres/data, then it would seem like
> there would end up being conflicts in file names when trying to launch
> a local server on each node. On the other hand, if there is disk space
> local to each node, then running the servers there would not allow for
> the assessing of the impact on a parallel file system.

You will definitely have to run initdb, and start Postgres, with a
unique data directory for each machine (maybe named after the host?)
-- having more than one server process trying to use a single
directory will break everything.

-Doug