Date: Wed, 2 Jun 2004 13:02:14 -0700 From: Jos Backus <jos@catnook.com> To: current@freebsd.org Subject: Re: Problems with periodic scripts in jails [Cron <operator@sosai> /usr/libexec/save-entropy] Message-ID: <20040602200236.GA72488@lizzy.catnook.com> In-Reply-To: <9C375698-B4CD-11D8-9C6A-003065ABFD92@mac.com> References: <20040602134523.GA26835@genius.tao.org.uk> <20040602140148.GA27036@genius.tao.org.uk> <20040602140923.GA27070@genius.tao.org.uk> <20040603011806.E25331@gamplex.bde.org> <20040602161148.GA3067@dan.emsphone.com> <9C375698-B4CD-11D8-9C6A-003065ABFD92@mac.com>
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On Wed, Jun 02, 2004 at 03:46:58PM -0400, Charles Swiger wrote:
> My suggestion would be to move the invocation of lockfile into the
> runjob script itself, so that your crontab is smaller and less
> cluttered, and your runjob scripts become smart enough to fend for
> themselves.
Or use a service controller (e.g. svc -o /service/foo). The service controller
guarantees that only one instance of the service will be active at any one
time. Combine this with starting the service just once. Bonus: no lock files
needed at all.
--
Jos Backus _/ _/_/_/ Sunnyvale, CA
_/ _/ _/
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jos at catnook.com _/_/ _/_/_/ require 'std/disclaimer'
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