Restarting ER feeder

• it checks the 3 criteria for a run:
  
  • Colliding Beams
  • OprMode=yes
  • filesize limit (> 270 kB)
  • (no check on QA flag, unlike PC pass)
  • it checks that the xtc file is available in Padova
  • it adds runs one by one to each farm (but this is configurable)
• Config file for the ERFeeder:
  OprProcessingSys/OprConfERFeederPd.xml
  it contains release number, but what it is does not matter too much what it is as long as it is a available and relatively recent release.
• there are other parameters here which control the behavior of the feeder.
  the prod area is: /nfs/opr0/Reprocessing/ER0/feed/workdir
  and the feeder logfiles are in: /nfs/opr0/opr0/Reprocessing/ER0/feed/workdir
  while the lpf logfiles for the feeder are: cls0:/tmp/

• make a new release dir in /nfs/opr0/Reprocessing/ER0/
• change it to be the feed link in /nfs/opr0/Reprocessing/ER0/feed
• change the release in the config file: OprProcessingSys/OprConfERFeederPd.xml
• commit and make a tag
• follow the instructions below to scratch and restart

• cd /nfs/opr0/Reprocessing/ER0/feed/workdir
• ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 localreaper
• ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 startsystem ERFarmFeeder
• note that the farms which are added to the feeder are defined in the config file and may not be the ones that you want it to feed. You can change this by doing:
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 addfarmtofeeder ERx
  or
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 removefarmfromfeeder ERx
  you should see the change right away.
• Note also that the feeder is by default off when it is restarted, so you need to start it so it will load runs to the farms:
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 starterfeeder

• first reap the feeder if it is already running, just to make things nice and clean :)
  cd /nfs/opr0/Reprocessing/ER0/feed/workdir
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 localreaper
  
• then go to cls0 and kill and restart the bare lpf
  ssh cls0 -lbbrprmgr
  kill running bareLpf by hand (the bareLpf is called: OprLpfStart.pl)
  srtpath 14.1.2d (or current release)
  /nfs/opr0/Reprocessing/ER0/feed/OprControlSys/OprBareLpfStart.sh /nfs/opr0/Reprocessing/ER0/feed/ <current release> $BFARCH
  where <current release> is just some active release, it does not really matter what it is.
• logout and then restart the feeder:
  cd /nfs/opr0/Reprocessing/ER0/feed/workdir
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 loadconf ../OprProcessingSys/OprConfERFeederPd.xml
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 startsystem ERFarmFeeder
  
• note that the farms which are added to the feeder are defined in the config file and may not be the ones that you want it to feed. You can change this by doing:
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 addfarmtofeeder ERx
  or
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 removefarmfromfeeder ERx
  you should see the change right away
• note also that the feeder is by default off when it is restarted, so you need to start it so it will load runs to the farms:
  ../bin/$BFARCH/OprCmd.pl -iUser -ncls0 starterfeeder