Bug#505996: bcfg2: Include random Sleep before running on cronjob

[Marc Fargas]

Package: bcfg2
Version: 0.9.5.7-1.1
Severity: wishlist

Hi there,
Right now all bcfg2 clients will run at the very same time in a common
scenario (i.e. from the cronjob provided) that can, in my case does,
kill the server. Maybe the cron job could do some "random" sleeping
before running the agent, just like /etc/cron.daily/apt does, i.e:

  sleep `$(($(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -c"1-5") % 
1800))`

Or, from /etc/cron.daily/apt:

    # sleep for a random interval of time (default 30min)
    # (some code taken from cron-apt, thanks)
    random_sleep()
    {
        RandomSleep=1800
        eval $(apt-config shell RandomSleep APT::Periodic::RandomSleep)
        if [ $RandomSleep -eq 0 ]; then
        return
        fi
        if [ -z "$RANDOM" ] ; then
            # A fix for shells that do not have this bash feature.
        RANDOM=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -c"1-5")
        fi
        TIME=$(($RANDOM % $RandomSleep))
        sleep $TIME
    }

That would distribute the hourly load spike a bit ;)

Thanks,
Marc

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (900, 'testing'), (300, 'unstable'), (150, 'experimental'), (100, 
'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash



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