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throttling.md

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Throttling is done as follows:

  • If the request is unauthenticated or the authorisation level doesn't allow it, role_mask == 1, the request is throttled at a rate of 150 requests/ minute
  • If the request is authorised with a role_mask >= 2 (researcher or admin), the request is not throttled and it will do so based on the request remote ip for 5'

This implies that if role_mask>=2 requests are followed by unauthenticated or unauthorised requests from the same IP, those requests will not be throttled - we consider this a borderline case. Also, if an IP is throttled - returning 429s, a request role_mask>=2 coming from that IP will get a 429 until 1' passes.