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From: milburn@me10.lbl.gov (John Milburn)
Newsgroups: comp.sys.hp
Subject: Re: batch and /usr/lib/cron/queuedefs
Message-ID: <4543@helios.ee.lbl.gov>
Date: 2 Jan 90 21:54:19 GMT
References: <1150014@misty.boeing.com>
Sender: usenet@helios.ee.lbl.gov
Reply-To: JEMilburn@lbl.gov (John Milburn)
Organization: Lawrence Berkeley Laboratory, Berkeley, CA
Lines: 68
X-Local-Date: 2 Jan 90 13:54:19 PST

From the hp-ux 7.0 distribution:


     QUEUEDEFS(4)					  QUEUEDEFS(4)



     NAME
	  queuedefs - queue description file for at(1), batch(1), and
	  crontab(1)

     SYNOPSIS
	  /usr/lib/cron/queuedefs

     DESCRIPTION
	  The queuedefs file describes the characteristics of the
	  queues managed by cron(1M).  Each non-comment line in this
	  file describes one queue.  The format of the lines are as
	  follows:
	       q.[njobj][nicen][nwaitw]
	  The fields in this line are:

	       q    The name of the queue, such that a is the default
		    queue for jobs started by at(1), b is the queue
		    for jobs started by batch(1), and c is the queue
		    for jobs run from a crontab(1) file.  Queue names
		    d through y designate user defined queues.

	       njob The maximum number of jobs that can be run
		    simultaneously in that queue.  The default value
		    is 100.

	       nice The nice(1) value to give to all jobs in that
		    queue that are not run with a user ID of super-
		    user.  The default value is 2.

	       nwait
		    The number of seconds to wait before rescheduling
		    a job that was deferred because more than njob
		    jobs were running in that job's queue, or because
		    more than 25 jobs were running in all the queues.
		    The default value is 60.

     EXAMPLES
	  The following queuedefs file:
	       a.4j1n
	       b.2j2n90w
	  specifies that the a queue, for at(1) jobs, can have up to 4
	  jobs running simultaneously, and that those jobs will be run
	  with a nice(1) value of 1.  As no nwait value was given, if
	  a job cannot be run because too many other jobs are running,
	  cron(1M) will wait 60 seconds before trying again to run it.
	  The b queue, for batch(1) jobs, can have up to 2 jobs
	  running simultaneously.  Those jobs will be run with a
	  nice(1) value of 2.  If a job cannot be run because too many
	  other jobs are running, cron(1M) will wait 90 seconds before
	  trying again to run it.  All other queues can have up to 100
	  jobs running simultaneously, they will be run with a nice(1)
	  value of 2, and if a job cannot be run because too many
	  other jobs are running, cron(1M) will wait 60 seconds before
	  trying again to run it.

     SEE ALSO
	  at(1), batch(1), nice(1), crontab(1), cron(1M), proto(4)
John Milburn - Advanced Light Source - Lawrence Berkeley Laboratory
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