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Hi Martin, I cut and paste your suggestion in wiki. I hope you don't mind. cheers alessandra On Tue, 28 Jun 2005, Bly, MJ (Martin) wrote: > The drain time for a farm is too long to be considered for anything but > the most dire interventions. > > You don't need to drain the queues, just temporarily stop the jobs. For > PBS/torque: > > qsig -s STOP `qselect -q whetever -s R` > > reboot, and restart the jobs > > qsig -s CONT `qselect -q whatever -s R` > > > Martin. > > >> -----Original Message----- >> From: LHC Computer Grid - Rollout >> [mailto:[log in to unmask]] On Behalf Of >> Maarten Litmaath >> Sent: 27 June 2005 16:17 >> To: [log in to unmask] >> Subject: Re: [LCG-ROLLOUT] rebooting a CE >> >> >> Jeff Templon wrote: >> >>> Hi *, >>> >>> We need to reboot our CE soon (kernel upgrade). Used to be if you >>> rebooted a CE machine, condor-G on the WMS would decide >> that your jobs >>> must all be dead, and restart them elsewhere. >> >> That is a long time ago. These days jobs in steady state are not >> affected by a reboot of the CE or the RB. Jobs in transit (e.g. >> just finishing) will fail. >> >>> What is the situation now? Do we need to drain queues >> before rebooting? >> >> Draining the queues is always a good idea. >> > -- ******************************************** * Dr Alessandra Forti * * Technical Coordinator - NorthGrid Tier2 * * http://www.hep.man.ac.uk/u/aforti * ********************************************