SPIP deadlocking problems

Hello all,

I've just had an e-mail from the systems administrator at our hosting  
company. He has had to restart his web server cluster 4 times in the  
last 3 days because some of our SPIP 2.0 sites are encountering  
apparent deadlocks and hanging PHP FastCGI processes.

If I can't resolve this problem, I'm going to have to move some of our  
90+ SPIP-based web-sites onto alternative hosting. This is something  
that neither I nor our hosting company want to do, but they have other  
customers and better things to do than restart their web servers every  
18 hours.

I intend to instrument the SPIP locking functions to build a complete  
record of SPIP's locking behaviour across a cluster of web servers.  
Has anyone done something like this already? I am planning to log all  
locking calls to a remote syslog server, but if someone has already  
done something similar, I would quite like to avoid the extra work.

Any suggestions about identifying or resolving this problem would  
extremely welcome.

Cheers,

Thomas Sutton

bouncingorange
graphic+web design