QUEUEDEFS(4-SysV)   RISC/os Reference Manual    QUEUEDEFS(4-SysV)



NAME
     queuedefs - at/batch/cron queue description file

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.  a is the default queue for
            jobs started by at(1); b is the default queue for
            jobs started by batch (see at(1)); c is the default
            queue for jobs run from a crontab file.

     njob   The maximum number of jobs that can be run simultane-
            ously in that queue; if more than njob jobs are ready
            to run, only the first njob jobs will be run, and the
            others will be run as jobs that are currently running
            terminate.   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.

     Lines beginning with # are comments, and are ignored.

EXAMPLE
          a.4j1n
          b.2j2n90w

     This file specifies that the a queue, for at jobs, can have
     up to 4 jobs running simultaneously; those jobs will be run
     with a nice value of 1.   As no nwait value was given, if a
     job cannot be run because too many other jobs are running
     cron will wait 60 seconds before trying again to run it.
     The b queue, for batch jobs, can have up to 2 jobs running
     simultaneously; those jobs will be run with a nice value of
     2.   If a job cannot be run because too many other jobs are
     running, cron will wait 90 seconds before trying again to



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QUEUEDEFS(4-SysV)   RISC/os Reference Manual    QUEUEDEFS(4-SysV)



     run it.  All other queues can have up to 100 jobs running
     simultaneously; they will be run with a nice value of 2, and
     if a job cannot be run because too many other jobs are run-
     ning cron will wait 60 seconds before trying again to run
     it.

FILES
     /usr/lib/cron/queuedefs

SEE ALSO
     at(1) in the User's Reference Manual.
     cron(1M) in the System Administrator's Reference Manual.











































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