I really have to wonder if somehow you've added extra indexes during the migration. That could easily cause this doubling. In the absence of any business logic changes, this is what I would focus my investigation on first.
Jeff On Tue, Oct 25, 2011 at 8:27 AM, Jason Collins <[email protected]>wrote: > The old app is disabled. > > It's tough to compare the load because the dashboard is long since > emptied on the old app. However, the number of Front-end Instance > Hours is effectively the same between old app and new app: around 24 > instance-hours. > > So we have: > > - migration via automated migration tool > - redeploy code from old app on new app > - match Application Settings between old app and new app > - disable old app > - datastore write ops (in billing reports) are exactly double on new > app, starting exactly the day of the migration > - instance-hours are the the same between old app and new app > - (new pricing model) costs have doubled between old app and new app, > due entirely to doubled datastore write ops > > j > > On Oct 24, 4:39 pm, "Ikai Lan (Google)" <[email protected]> wrote: > > Long shot ... any chance your old app is still running? If so, could task > > queues/cron jobs on the old app might be hitting the new app and causing > an > > increase in writes? Of course ... you would see additional load if this > were > > the case. > > > > This would be much easier to solve if we knew which handlers were > generating > > additional writes, or if you were just seeing more load. > > > > -- > > Ikai Lan > > Developer Programs Engineer, Google App Engine > > plus.ikailan.com | twitter.com/ikai > > > > On Fri, Oct 21, 2011 at 10:30 AM, Jason Collins > > <[email protected]>wrote: > > > > > > > > > > > > > > > > > My datastore writes comparison (0.72M/day to 1.45M/day) is using data > > > all from the "new pricing" portion. > > > > > Somehow, my datastore writes doubled precisely on the day that I > > > migrated to HRD. My new pricing costs correspondingly doubled from > > > $0.67 to $1.40. > > > > > While there may be no difference in the number of writes between M-S > > > and HRD, is there any possibility that there is a problem in the > > > accounting? > > > > > j > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Google App Engine" group. > > > To post to this group, send email to [email protected] > . > > > To unsubscribe from this group, send email to > > > [email protected]. > > > 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 [email protected]. > To unsubscribe from this group, send email to > [email protected]. > 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
