I'm doing some testing on my app, and I let it run on a machine this afternoon while I was away.  When I got back, I was geting 503 throttle violation errors from my API calls.

I was calling the "questions" endpoint at a rate of once per minute, passing a "min" date value to limit the returned questions to just those that have been submitted since my last poll.  In the case where "has_more" was true in the response, I was retrying (with the page incremented) at a rate of once every 5 seconds.  To my understanding, this is far less than the established maximum number of requests per unit time.  I believe I was at about 300 requests total when I hit the throttle.

I've also got code in place to honor the "backoff" attribute if it was present, but that code was untested and it's possible it doesn't work. 

I lost the console output, so I don't know exactly what happened when the feces impacted the high-speed rotating blades.  Now, all of my requests return 502 errors, even though it's been about 2.5 hours since the "event."

Request url:

    https://api.stackexchange.com/2.0/questions?sort=creation&pagesize=5&min=1325870128&site=gaming&order=asc&key=XXXXXXXX&page=1

Where XXXXXXXX is my API key.  I can't get the quota since all endpoints are returning the same throttle violation error.  In earlier testing, it was reading a max quota of 10,000.

Specific data that is being returned:

    {u'error_id': 502, u'error_message': u'too many requests from this IP', 
     u'error_name': u'throttle_violation'}

Here's the API usage graph for my app, I can't grab the entire runtime graph (resolution issues), but there should be enough of it there to ensure that there's nothing odd going on:

![enter image description here][1]

What's a good way to debug this issue?  I haven't found any good tools for showing a spike in my API requests at any higher resolution than daily.  The data I can get back from the API is pretty much just "you were bad, go away" which isn't terribly helpful either.


  [1]: https://i.sstatic.net/WZYVN.png