[Twisted-Python] Incorrect "Another twistd server is running..."

[Peter Cai]

When my server reboot after an unexpected power cut,
supervisord tried to start a twisted app after an unexpected power cut,
but it fails because "Another twistd server is running, PID 4607"
4607 is the PID of the twisted app before power cut.

After I stopped and restart supervisord, everything is OK.

What might cause twistd to think that an non-exist process is running?

-- 
look to the things around you,the immediate world around you, if you are
alive,it will mean something to you ——Paul Strand
-------------- next part --------------
An HTML attachment was scrubbed...
URL: </pipermail/twisted-python/attachments/20090721/f71baad8/attachment.html>