Re: [Firebird-devel] Fix for CORE-3034 causes server collapse under load

2012-11-01 Thread Dmitry Yemanov
02.11.2012 8:33, Dmitry Yemanov wrote: [skip] Sorry for posting in Russian, it was intended to go privately :-) Dmitry -- LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update so

Re: [Firebird-devel] Fix for CORE-3034 causes server collapse under load

2012-11-01 Thread Dmitry Yemanov
01.11.2012 23:28, Nikolay Samofatov пишет: > > I privately discussed this issue with Dmitry and would like to confirm here > that backing out the > patch indeed fixes the problem. У вас проблеима вызвана сочетанием двух вещей. Патч для 3034 действительно блокирует доставку АСТов на время скана к

Re: [Firebird-devel] Fix for CORE-3034 causes server collapse under load

2012-11-01 Thread Vlad Khorsun
> Hello, All! > > The fix effectively disables JRD_reschedule calls. For example in > btr.cpp:scan() JRD_reschedule will > never yield control to another thread because it is always called with at > least one latch. > > Since AST processing in Firebird 2.5 and later requires yield of control t