It's just odd that GAE is having trouble not when load is high, but when load is low. I doubt tablet issues are the cause here. Can you run some fake load against the datastore? Just build a B1 that adds some fake scores, and have your tabulator backend delete those fake scores when it builds the leaderboard.
Also, i'm wondering why it just started 5 days ago. Did your load profile change? Try this: change your instances to F2, then back to F1. Perhaps your resident instance got moved to a faulty server 5 days ago; this will force GAE to open a new instance on a new server. On Aug 2, 9:50 am, Richard <[email protected]> wrote: > Kinda. By 'low load', I mean 150-200 simultaneous users. Oh... and it > never used to have this problem. This started 5 days ago. > > > > On Thursday, August 2, 2012 12:19:51 AM UTC-4, hyperflame wrote: > > > Just to be clear, the GAE datastore returns stale results ONLY at a > > specific time, and only when load is low? Is it because of both of > > those factors together or just a single one? Seems odd that GAE is > > reacting slowly just when load is the lowest. Can you post some load > > graphs? > > > If the staleness is due to low load, you could always run some fake > > users to add to the load, then have your backend subtract those fake > > users when it builds the scoreboards. It wouldn't be hard; you can > > capture some real users data, save it to a log, then replay it against > > production servers. > > > On Aug 1, 1:27 pm, Richard <[email protected]> wrote: > > > Summary so far: > > > > "Sometimes" (at the same time of day.. when load is lowest), GAE will > > do a > > > put() and 5-10 seconds later when I do a query all to create > > leaderboards > > > for that game round, I get stale results..... for some of the entries. > > > This is because the put() has completed, but not the (internal) > > commit(). -- 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.
