Re: [ZODB-Dev] ZODB packing and possible side effects?

2010-12-09 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/09/2010 05:32 AM, Mark Van den Borre wrote: > I'm trying to read up on ZODB packing and possible side effects. Does > anyone know about comprehensive docs on this? Think interaction with > repozo backup processes, a pack removing weakly referenc

Re: [ZODB-Dev] ZODB packing and possible side effects?

2010-12-09 Thread Jim Fulton
On Thu, Dec 9, 2010 at 5:32 AM, Mark Van den Borre wrote: > Hi all, > > I'm trying to read up on ZODB packing and possible side effects. Does > anyone know about comprehensive docs on this? Documentation is a major weakness of ZODB. > Think interaction with > repozo backup processes, I don't us

Re: [ZODB-Dev] When will the Data.fs.index will be touched

2010-12-09 Thread Jim Fulton
On Thu, Dec 9, 2010 at 5:25 AM, Axel Gerke wrote: > Hi, > > I'm Axel Gerke, yet another zope developer. My question is: Under what > circumstances will the Data.fs.index be touched (i.e. its timestamp changes)? > After consulting Andreas Jung, he can only remember, the file will be only > touche

Re: [ZODB-Dev] When will the Data.fs.index will be touched

2010-12-09 Thread Izak Burger
On 09/12/2010 12:25, Axel Gerke wrote: > I'm Axel Gerke, yet another zope developer. My question is: Under what > circumstances will the Data.fs.index be touched (i.e. its timestamp changes)? > After consulting Andreas Jung, he can only remember, the file will be only > touched @ startup or shutd

[ZODB-Dev] ZODB packing and possible side effects?

2010-12-09 Thread Mark Van den Borre
Hi all, I'm trying to read up on ZODB packing and possible side effects. Does anyone know about comprehensive docs on this? Think interaction with repozo backup processes, a pack removing weakly referenced objects, impact on the Data.fs index, ... Thanks for any hints! Sincerely, Mark -- Mark

[ZODB-Dev] When will the Data.fs.index will be touched

2010-12-09 Thread Axel Gerke
Hi, I'm Axel Gerke, yet another zope developer. My question is: Under what circumstances will the Data.fs.index be touched (i.e. its timestamp changes)? After consulting Andreas Jung, he can only remember, the file will be only touched @ startup or shutdown. But we see that the file's timestamp

Re: [ZODB-Dev] Sharing (persisted) strings between threads

2010-12-09 Thread Mikko Ohtamaa
> > That is already possible: just use RelStorage with memcached and set > your ZODB cache size to zero or something small.  However, large ZODB > applications typically depend on a large number of persistent objects to > respond to even the simplest requests, so you would have to optimize the > ap