I am seeing two different symptoms: 1. Photo requests failing. As Donald reported, the limit seems to be roughly two requests per second. When I throttle back my photo requests to two requests per second, I no longer see photo requests failing.
2. I am getting 503 responses to login requests via ClientLogin where I have issued a large number of requests for either the contact list or contact photos. In one case, the issue is a test account with a large number of contacts. I have been exercising the Contacts API on this test account extensively in an effort to deal with this problem. However, in another case one of my customers is encountering this with my software. I am eager to work within Google's guidelines, but am frustrated to not know what they are. Are we limited by number of requests per second, minute, hour, or day? Or by bytes served per second, minute, hour, or day? Since Google is not publishing this information, the only way to determine this is by experimenting. Experimenting only means throwing excessive requests to the Contacts API to see where the API stops serving us. John -- You received this message because you are subscribed to the Google Groups "Google Contacts, Shared Contacts and User Profiles APIs" 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://code.google.com/apis/contacts/community/forum.html
