perfSONAR User Q&A and Other Discussion

["Uhl, George D. (GSFC-423.0)[SGT INC]" <>]

Hi Mark,

Not only was I thinking of a smaller footprint I was also looking at standing up instances of pScheduler/pS4.0 at remote sites on other people’s hosts that hopefully wouldn’t require intervention on their part.  I’ve been looking at Docker as a possible solution.  I’ve been able to build a container that runs bwctld and owampd but I wanted to enable pScheduler as well.  I’ve been following Brian Tierney’s development efforts to build a pS4.0 testpoint container which is still a work in progress.

Thanks,

George

From: Mark Feit <>
Date: Monday, February 13, 2017 at 2:33 PM
To: George Uhl <>, "" <>
Subject: Re: [perfsonar-user] pScheduler and postgres

Uhl, George D. (GSFC-423.0)[SGT INC] writes:

 

Does pScheduler require postgres to function if it’s installed as part of the perfsonar-tools package?

Yes, it does.  All of the persistent data storage and many of the processing functions are done in the database.  Taking that route cut development time considerably and gave us a lot of sophistication, reliability and integrity we wouldn’t have had with hand-rolled code.

 

The footprint isn’t very big.  All of the development was done in an environment much smaller than our minimum recommended configuration, and its use of resources has been watched carefully.

 

If you’re concerned about security, no use of PostgreSQL leaves the host and the pScheduler database is configured not to accept connections from anywhere other than locally.  Authentication is done with a long, random password that’s unique to every installation, changed whenever the software is updated and stashed away in a place where the few processes that need it can see it.

 

HTH.

 

--Mark