[Twisted-Python] Watching over a Twisted daemon
tv at twistedmatrix.com
Tue Aug 12 17:15:34 EDT 2003
On Tue, Aug 12, 2003 at 07:47:10PM +0200, Nicola Larosa wrote:
> This unfortunately introduces a single point of failure, because if the
> Twisted process goes down, it not only does not monitors the daemons
> anymore, but effectively takes them down with it.
You really can't control a more-reliable system with a
less-reliable system. The procmon process is meant to
be simple enough to not die in vain.
And monitoring daemons without being able to receive
their SIGCHLDs is both race-prone and requires polling.
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