Scavenging the mail folder uncovered Paolo Comitini's letter:
I seem to be able to kill Zope *very* easily (with about 5 requests/sec) if that request does a lot of SQL activity. Now, this activity is not avoidable, but that load is pretty puny.
Also, it doesn't just seem to die either - it seems to hang completely under some circumstances.
I'm using Postgresql (makes no different whether it's 7.0 or the 7.1RC1) with ZPoPyDA and/or psycopg - they both suffer from the problem. What happens is that the child threads of ZServer die, leaving me with the top-level process (doing a waitpid on it's child) and the child (doing a select on the PCGI socket)
hi, to test psycopg we did 10,000 requests (10 reqs per sec) and zope+psycopg didn't show any problem. i don't know what happens with the HEAD from cvs (a lot of stuff changed) but i don't think you are using that. ciao, federico -- Federico Di Gregorio MIXAD LIVE Chief of Research & Technology fog@mixadlive.com Debian GNU/Linux Developer & Italian Press Contact fog@debian.org All programmers are optimists. -- Frederick P. Brooks, Jr.