queuedefs(4)                                                   queuedefs(4)




 NAME    [Toc]    [Back]
      queuedefs - queue description file for at, batch, and crontab

 SYNOPSIS    [Toc]    [Back]
      /var/adm/cron/queuedefs

 DESCRIPTION    [Toc]    [Back]
      The queuedefs file describes the characteristics of the queues managed
      by cron (see 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 (see at(1)), b is the queue for
                     jobs started by batch (see at(1)), and c is the queue
                     for jobs run from a crontab file (see crontab(1)).
                     Queue names d through y designate user-defined queues.

           njob      The maximum number of jobs that can be run
                     simultaneously in that queue.  Although any number can
                     be specified here, the total number of jobs that can be
                     run on all the queues is limited to 100.

           nice      The nice value to give to all jobs in that queue that
                     are not run with a user ID of super-user (see nice(1)).
                     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 100
                     jobs were running in all the queues (see njob above).

 EXAMPLES    [Toc]    [Back]
      Consider the following queuedefs file:

           a.4j1n
           b.2j2n90w

      The file is interpreted as follows:

           a.4j1n         The a queue, for at jobs (see at(1)), can have up
                          to 4 jobs running simultaneously, and those jobs
                          will be run with a nice value of 1.

                          Since no nwait value is 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
                          (see cron(1M)).



 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003






 queuedefs(4)                                                   queuedefs(4)




           b.2j2n90w      The b queue, for batch jobs (see at(1)), 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 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 running, cron will wait 60 seconds before
      trying again to run it.

 SEE ALSO    [Toc]    [Back]
      at(1), nice(1), crontab(1), cron(1M), proto(4).

 STANDARDS CONFORMANCE    [Toc]    [Back]
      queuedefs: SVID2, SVID3


 Hewlett-Packard Company            - 2 -   HP-UX 11i Version 2: August 2003