Check this other thread. I reported the same issue earlier and they acknowledged it's an issue on their side.
http://groups.google.com/group/google-appengine/browse_thread/thread/330e78a87034c0dd?hl=en# Waleed On Sat, Jun 12, 2010 at 11:50 PM, djidjadji <djidja...@gmail.com> wrote: > It is not an unneeded write. > > You put a try-except around a db.put (a write) you want to do > normally. But when the CapabilityDisabledError exception is raised you > know the write failed because of Read-Only mode. > > Just put your "... handle read-only ..." code at the place of "# fail > gracefully here" and you don't need the extra RPC call. This RPC call > CapabilitySet() is done every request. That increases respons time > that is not needed. > > 2010/6/13 Darien Caldwell <darien.caldw...@gmail.com>: > > I have seen from several sources that you can do this import: > > > > > > from google.appengine.api.capabilities import CapabilitySet > > > > and then tell when the datastore is read-only like so: > > > > if not CapabilitySet('datastore_v3', > > capabilities=['write']).is_enabled(): > > ... handle read-only ... > > > > However this is the second time that maintenance has occured, and this > > method didn't work. > > > > Is this now depreciated? Or did it ever work to begin with? > > > > I know this page shows a slightly different method, > > http://code.google.com/appengine/docs/python/howto/maintenance.html > > > > But it requires that you try to write before discovering you'r'e in > > read-only mode. I don't want to have to put in an un-needed write just > > to find out if the Datastore is in Read-Only mode. > > > > Can anyone help with this? > > > > -- > > 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-appeng...@googlegroups.com. > > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@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-appeng...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@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-appeng...@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.
