I am using the Geocoding API, and am receiving OVER_QUERY_LIMIT and I have enabled my billing account, which should give me over 100k queries. I am doing about 2500 or less. It seems to happen when I am processing many items in a php loop, but not for each item - for example.
So it doesn't appear I am actually over the limit, but that's the XML returned for the transaction. If I process the same transaction in a URL it works with no issue.
Ideas?
Pace your application or submit the requests in smaller groups. Solutions include using a cron job to distribute the requests throughout the day, or adding a small delay between requests.
From: https://developers.google.com/maps/documentation/business/articles/usage_limits
If you exceed the usage limits you will get an OVER_QUERY_LIMIT status code as a response.
This means that the web service will stop providing normal responses and switch to returning only status code OVER_QUERY_LIMIT until more usage is allowed again. This can happen:
Within a few seconds, if the error was received because your application sent too many requests per second.