pfSense

On my pfsenses I see multiple instances of updaterrd.sh

Because all instances uses only one pid file with only one entry I suggest there should be only one updaterrd.sh.

On disabling RRD only one updaterrd.sh will be killed:

rrd.inc:    killbypid("{$g['varrun_path']}/updaterrd.sh.pid");

[2.1.5-RELEASE][root@pfsense.extern1.zmt.info]/root(5): ps jx | grep updater
root   573     1   257   257    0 SN    ??   24:51.29 /bin/sh /var/db/rrd/updaterrd.sh
root  2948     1   257   257    0 SN    ??   24:49.59 /bin/sh /var/db/rrd/updaterrd.sh
root  8395     1   257   257    0 IN    ??   24:37.54 /bin/sh /var/db/rrd/updaterrd.sh
root  9758     1   257   257    0 IN    ??   24:48.27 /bin/sh /var/db/rrd/updaterrd.sh
root 14151     1   257   257    0 IN    ??   25:05.86 /bin/sh /var/db/rrd/updaterrd.sh
root 15101     1   257   257    0 IN    ??   10:14.63 /bin/sh /var/db/rrd/updaterrd.sh
root 81390     1   257   257    0 SN    ??   24:46.45 /bin/sh /var/db/rrd/updaterrd.sh
root 85149     1   257   257    0 SN    ??   24:28.32 /bin/sh /var/db/rrd/updaterrd.sh
root 97530     1   257   257    0 IN    ??   24:50.33 /bin/sh /var/db/rrd/updaterrd.sh
[2.1.5-RELEASE][root@pfsense]/root(4): ps jx | grep sleep
root 10447  2948   257   257    0 SN    ??    0:00.00 sleep 60
root 35749 85149   257   257    0 SN    ??    0:00.00 sleep 60
root 44745 44127   257   257    0 SN    ??    0:00.00 sleep 0.2
root 45809 45367   257   257    0 SN    ??    0:00.00 sleep 0.2
root 82526  9758   257   257    0 IN    ??    0:00.00 sleep 60
root 82975 15101   257   257    0 IN    ??    0:00.00 sleep 60
root 90476 97530   257   257    0 IN    ??    0:00.00 sleep 60
root 90836 14151   257   257    0 IN    ??    0:00.00 sleep 60
root 95032  8395   257   257    0 SN    ??    0:00.00 sleep 60