Re: [ZODB-Dev] [FileStorage] Potential data loss through packing

2008-01-21 Thread Jim Fulton
On Jan 21, 2008, at 1:27 PM, Dieter Maurer wrote: Jim Fulton wrote at 2008-1-21 09:41 -0500: ... resurrections after pack time may get lost ... I'm sure the new pack algorithm is immune to this. It would be helpful to design a test case to try to provoke this. I fear, we can not obtain full

Re: [ZODB-Dev] [FileStorage] Potential data loss through packing

2008-01-21 Thread Dieter Maurer
Jim Fulton wrote at 2008-1-21 09:41 -0500: > ... resurrections after pack time may get lost ... >I'm sure the new pack algorithm is immune to this. It would be >helpful to design a test case to try to provoke this. I fear, we can not obtain full immunity at all -- unless we perform packing offl

Re: [ZODB-Dev] [FileStorage] Potential data loss through packing

2008-01-21 Thread Jim Fulton
On Jan 21, 2008, at 5:00 AM, Dieter Maurer wrote: Looking at the current (not Jims new) pack algorithm to optimize the reachability analysis, I recognized a behaviour that looks like a potential data loss through packing. I will be applying my changes to the trunk soon. The potential data