Hi Mark,
As another option, Google Stackdriver Monitoring <https://cloud.google.com/monitoring/docs/> allows you to retrieve relevant metrics about your Datastore operations. Among the available metrics listed here <https://cloud.google.com/monitoring/api/metrics#gcp-datastore>, you may be interested by the “api/request_count” metric that allows you to retrieve the number of datastore requests within a timeframe as narrow as an hour. You can test this feature on the Metrics Explorer <https://app.google.stackdriver.com/metrics-explorer?project=> directly after enabling it. Still, be aware that the number of requests to the datastore may not be representative of the actual number of read calls involved in these requests. Let me know if that helps you in identifying the periods of your spikes. Cheers, Alex -- 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/caad8a35-1a52-47e7-b736-7b2621b31f66%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.