On Thu, Aug 13, 2009 at 2:01 PM, Shane Hathaway<sh...@hathawaymix.org> wrote: > Jürgen Herrmann wrote: >> is there a strict requirement for oids to be increasing? > > No, but obviously there is a strict requirement that new_oid() return > unique OIDs. > >> if RadosStorage could pre-allocate oids in batches of thousands, that >> would probably give me a big performance win, or to put it the other >> way round: rados is not designed to be used for such time-critical and >> at the same time completely synced operations. and getting new oids >> will happen often... > > ZEO also allocates OIDs in large batches, I believe.
Yup. Note that technically, IODs can be any string, however lots of tools assume they are 8-byte strings, which gives plenty of room for wastage when allocating them. Jim -- Jim Fulton _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
