My experience with presence notifications is also that they are unreliable. Channel API has some problems, you can read this topic for more: https://groups.google.com/forum/?fromgroups=#!searchin/google-appengine/channel$20unreliable/google-appengine/lqaCMEj8IyQ/7eWTcLqJxWsJ
I have created an issue some time ago re presences problem, please star it. It is as simple as adding a timestamp to presence notification. http://code.google.com/p/googleappengine/issues/detail?id=8151 PS Btw for about a month now there is a new problem that working channel stops receiving messages w/o any errors for undefined period of time and then may start receiving them again... -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/40uFn1JzALQJ. 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.
