Re: [ZODB-Dev] minimizing the need for database packing

2008-01-02 Thread Jim Fulton
On Dec 29, 2007, at 3:22 PM, Dieter Maurer wrote: Jim Fulton wrote at 2007-12-28 10:20 -0500: ... There Berkely Database Storage supported automatic incremental packing without garbage collection. If someone were to revitalize that effort and if one was willing to do without cyclic

Re: [ZODB-Dev] minimizing the need for database packing

2008-01-02 Thread Jim Fulton
On Jan 2, 2008, at 1:30 PM, Dieter Maurer wrote: Jim Fulton wrote at 2007-12-29 16:06 -0500: ... If you are at it: I think the lock which protects the finish test is hold too long. Currently, it is just release for a very short time and then immeadiately reacquired. It should be safe to

Re: [ZODB-Dev] minimizing the need for database packing

2007-12-29 Thread Dieter Maurer
Jim Fulton wrote at 2007-12-28 10:20 -0500: ... There Berkely Database Storage supported automatic incremental packing without garbage collection. If someone were to revitalize that effort and if one was willing to do without cyclic garbage collection, then that storage would remove the

Re: [ZODB-Dev] minimizing the need for database packing

2007-12-28 Thread Jim Fulton
On Dec 28, 2007, at 5:26 AM, Flavio Coelho wrote: Hi, is there any way to minimize the need for database packing? I wouldn't mind loosing the ability of undoing transactions. There's a significant performance benefit to keeping some non-current data to support multi-version concurrency