FYI we appear to have the same problem in production at a customer site. I don't know enough of MVCC to dig into this myself. We'll try Dieter's patch, and report on the effects, and I'll include the patch in ZODB if it proves harmless.
FYI we appear to have the same problem in production at a customer site.
I don't know enough of MVCC to dig into this myself.
We'll try Dieter's patch, and report on the effects, and I'll include the patch in ZODB if it proves harmless.