The Datastore itself has always supported multiple concurrent transactions. However the dev_appserver in the python SDK previously used a global lock and would deadlock if a single thread tried to start more than a single transaction. Now you can have multiple concurrent transactions running at the same time. This is good for the Go runtime (which uses the python dev_appserver), the Datastore Plus<http://code.google.com/p/appengine-ndb-experiment/> library, anyone else who wants to use concurrent transactions on the dev_appserver.
On Tue, Jul 12, 2011 at 3:19 PM, pdknsk <pdk...@googlemail.com> wrote: > > The SDK now supports multiple concurrent transactions. > > What does this mean exactly? > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to google-appengine@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
