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Date:      Fri, 07 Apr 2017 03:01:57 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-ports-bugs@FreeBSD.org
Subject:   [Bug 218447] net/pwhois:  periodic script needs anticongestion sleep
Message-ID:  <bug-218447-13@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D218447

            Bug ID: 218447
           Summary: net/pwhois:  periodic script needs anticongestion
                    sleep
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: zi@FreeBSD.org
          Reporter: asomers@FreeBSD.org
          Assignee: zi@FreeBSD.org
             Flags: maintainer-feedback?(zi@FreeBSD.org)

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 rand=
om
amount of time before hitting the external server.

After r316432, there is a common anticongestion function to handle this.  F=
or
an example of how to use it, see
https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D181374&action=3Ddiff

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