Re: [ZODB-Dev] [OT] NoSQL

2009-11-14 Thread Wichert Akkerman
On 11/13/09 21:33 , Shane Hathaway wrote: > I've been studying how to build an enormous database based on what I > know. There are an incredible number of distributed databases these > days, but all of them concern me in one way or another. Can you share some of those concerns with us? I'ld be in

Re: [ZODB-Dev] ZEO and blobs: missing tmp file breaks transaction on retry

2009-11-14 Thread Jim Fulton
On Fri, Nov 13, 2009 at 5:56 PM, Laurence Rowe wrote: ... > Presumably ZODB 3.9 maintains backwards compatibility for ZEO clients, > so a ZODB 3.9 ZEO server could be used with Zope 2.10 + ZODB 3.8 > clients? Yup. Jim -- Jim Fulton ___ For more infor

Re: [ZODB-Dev] [OT] NoSQL

2009-11-14 Thread Shane Hathaway
Roché Compaan wrote: > On Fri, 2009-11-13 at 13:33 -0700, Shane Hathaway wrote: >> Stephan Richter wrote: >>> http://svn.zope.org/z3c.sharding/trunk > > Great stuff! This approaches scaling a large data set at application > level though. Don't you think a ZODB storage doing this for you would > so

Re: [ZODB-Dev] [OT] NoSQL

2009-11-14 Thread Shane Hathaway
Wichert Akkerman wrote: > On 11/13/09 21:33 , Shane Hathaway wrote: >> I've been studying how to build an enormous database based on what I >> know. There are an incredible number of distributed databases these >> days, but all of them concern me in one way or another. > > Can you share some of t

Re: [ZODB-Dev] [OT] NoSQL

2009-11-14 Thread Roché Compaan
On Sat, 2009-11-14 at 14:23 -0700, Shane Hathaway wrote: > Roché Compaan wrote: > > On Fri, 2009-11-13 at 13:33 -0700, Shane Hathaway wrote: > >> Stephan Richter wrote: > >>> http://svn.zope.org/z3c.sharding/trunk > > > > Great stuff! This approaches scaling a large data set at application > > lev

Re: [ZODB-Dev] [OT] NoSQL

2009-11-14 Thread Shane Hathaway
Roché Compaan wrote: > On Sat, 2009-11-14 at 14:23 -0700, Shane Hathaway wrote: >> I think proper construction of horizontally scalable databases must be >> done partly at application level, since a lot of the issues to be solved >> are specific to the application. > > What are the issues you're

Re: [ZODB-Dev] [OT] NoSQL

2009-11-14 Thread Andreas Jung
Am 14.11.09 23:33, schrieb Shane Hathaway: > > > > I think that by "very critical", the MongoDB authors are referring to > > applications that must not allow conflicting updates. Conflict > > resolution is probably my main concern with all of these new databases. > > I have no doubts about Z