Periodic scripts that hit external servers can cause a "thundering herd" problem, whereby many systems' periodic scripts run at the same time, and overload the server. To prevent this, such scripts should sleep for a random amount of time before hitting the external server.
After r316432, there is a common anticongestion function to handle this. For an example of how to use it, see
svn-diff in bug # 218447.
(In reply to w.schwarzenfeld from comment #1)
> Maintainer feedback?
Ak! I somehow missed this one. :-(
In case anyone wants to know. I'm now looking at this.
Thanks Alan, Walter!
A commit references this bug:
Date: Mon May 21 16:02:28 UTC 2018
New revision: 470559
sysutils/boxbackup*: use anticongestion sleep in the periodic job
Use an anticongestion sleep in the periodic job to prevent the thundering
herd problem when many systems' cron jobs fire off at once.
Approved by: firstname.lastname@example.org (maintainer)