To stop and start the pipeline automatically (for a planned outage):

• First of all, login as glast to some interactive machine and go to the pipeline directory.

  $ ssh glast@noric $ cd ~glast/pipeline-II/prod/

• create and edit a shutdown_schedule_date file:

  $ date > shutdown_schedule_20100909 $ vim shutdown_schedule_20100909

• the shutdown_schedule_date file should look something like this (the start time should be some 10 minutes before the beginning of the outage, the stop time should be a few hours after the expected end of the outage); important: leave a blank line at the end of the file:

  Thu Sep 9 09:50:00 PDT 2010 Thu Sep 9 13:50:00 PDT 2010

• create a symbolic link for shutdown_schedule_date as shutdown_schedule:

  ln -s shutdown_schedule_20100909 shutdown_schedule

• the pipeline should shutdown automagically a few minutes after the start time in the shutdown_schedule file (there is a cronjob involved, plus it can take a couple of minutes for it to really shutdown)

• to restart the pipeline, just remove the symbolic link (leaving the shutdown_schedule_date file for future reference):

  rm shutdown_schedule

• the pipeline should go back up automagically in a few minutes

• to check the status of the pipeline server, you can use the ping function of the pipeline:

  glast@noric09 $ ./pipeline ping Pinged server version 1.3.5 running on glastlnx12.slac.stanford.edu since 2010-09-07 16:57:28.012