5.1.6 Cron

Cron periodicaly run queries. It implement the DATE actor.

Process conceptual model:

• Events in

  (date)

  from DATE (see Who)

• Processing
  • Scripts should run silently. If it is not the case, or on error, a mail containing the script’s outpouts will be sent to the ADMIN.
• Events out

  # bash -i /usr/share/mediatex/scripts/cron_hourly.sh

  # bash -i /usr/share/mediatex/scripts/cron_daily.sh

  # bash -i /usr/share/mediatex/scripts/cron_monthly.sh

  to conrHourly-cronDaily (see cronHourly-cronDaily): scheduled tasks.

  $ mail

  to Sendmail (see Exim): notify scheduled task errors to ADMIN (see Who).

• Data in

  /etc/cron.d/mediatex

  SHELL=/bin/sh
  PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
  MAILTO=root
  
  # m  h dom mon dow user	command
  XX  *   *   *   * root /usr/share/mediatex/scripts/cron_hourly.sh
  XX XX   *   *   * root /usr/share/mediatex/scripts/cron_daily.sh
  XX XX   X   *   * root /usr/share/mediatex/scripts/cron_monthly.sh
  

  Notice: the triger dates are choosen randomly during MEDIATEX initialisation.

Code:

misc/mediatex_cron