Hey TH, The Datastore does have restrictions on concurrent modifications <https://cloud.google.com/appengine/articles/scaling/contention>, but as far as read operations, there is an unlimited quota <https://cloud.google.com/appengine/docs/quotas#Datastore> when billing is enabled. As long as you can provision enough reading apps, you should be able to successfully run the script without hitches, although you'll want to experiment and profile with the system to determine what bottlenecks might exist in your script's logic. You could look into Memcache as well, as a potential middle layer to speed up the reads.
Let me know if you still have questions and I'll be happy to help. Sincerely, Nick Cloud Platform Community Support On Monday, April 4, 2016 at 10:59:19 AM UTC-4, TH TH wrote: > > > So I have 25,000 .py scripts running at the same time every 2 minutes as > CRON jobs (distributed equally over 1000 servers) > > They all have to access the same DB at the same time, ONLY to READ from > db, not to write. > > So I was wondering if Google Datastore (for example) could handle this? > 25000 requests to the same DB at the same time just to read? > > I couldnt find this in Google's AE docs. > > Best Regards > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/52eed60f-a8ce-4a9a-bb11-792abbf72187%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
