Hi, I have two suggestion for newsyslog(8) and periodic(8) entries in default /etc/crontab file:
* nice(1) newsyslog and periodic entries to shape CPU load spikes; * lockf(1) them to prevent simultaneous execution. So instead 1 3 * * * root periodic daily there may be 1 3 * * * root lockf -t0 /var/run/periodic.daily.lock nice -20 periodic daily In case of collision we'll receive following email: Date: Wed, 26 Nov 2008 18:16:00 +0200 (EET) From: [EMAIL PROTECTED] (Cron Daemon) To: [EMAIL PROTECTED] Subject: Cron <[EMAIL PROTECTED]> lockf -t0 /var/run/periodic.daily.lock nice -20 periodic daily lockf: /var/run/periodic.daily.lock: already locked The configuration has been working for years on my servers without any visible drawbacks. What do you think? -- Artem Naluzhnyy _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
