[Zope-DB] 2 sql methods issue (was Re: SQL Relay)

Jim Abramson jabramson at wgen.net
Tue Nov 25 16:20:16 EST 2003

I am currently struggling to contain the damage this issue has caused at my company. Anyone 
stumbled onto a resolution yet?

it may be interesting - or old news - to note the following findings:

I've tried splitting the zope-based services we run onto two separate zope instances, on the 
same server, and unfortunately even in this case zope2 will not serve any requests while zope1 
is using more than 1 database connection actively (note - i have found that any action involving 
a zope db connection, not just a sql method, will cause this hogging situation). However, while a 
hogging situation is in effect, I can run hello.py against the same python bin, from the command 
line, which returns results without any delay. I am now trying to get my sysadmin's help with a 
test running the zope instances against distinct python executables.

If anyone out there has found a way out of this mess in the past weeks, or can show that this 
behavior is by design (and how to override!), I'm truly all ears.


> Cc: zope-db at zope.org
> Subject: Re: [Zope-DB] Re: SQL Relay
> Kent Hoxsey wrote:
> > I'm still in the process of chasing demons with gdb, and will report progress
> > once I've made some. Anybody with additional insight, please jump in.
> Something else you might want to check: you should make sure that
> all components of your setup are linked to the same threading library.

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