Andy wrote:

Actually, the patch I have for ZMySQLDA to make it use MySQLdb/_mysql instead of MySQLmodule-1.4 makes it fully thread-safe. I've flogged MySQLdb/_mysql with a test script and typically use 3-5 threads and it works fine, no leaks, no blocking.

This really is wonderful news! We've been hoping someone with a lot of MySQL experience would do some magic for Zope's DA support. It's been a shame that people have to run Zope2 with one application thread. Thus, thanks! --Paul