Hi, As we know, the txn rate-limiter *blocks* creation of new transaction(s) if the permits are not granted by rate-limiter. So, in context of the direct broker clients within ODL , this creates a level of backpressure which is understandable.
But if the broker clients are invoked from the edge modules (eg. Neutron NB), the external client(s) could typically block. But the external client (eg. Neutron agent outside ODL process) may have a timeout and can fail the request as consequence. Are such external systems, expected to implement retry based on the timeout (of course with some backoff mechanism) ? What I am trying to understand is - if the external clients do not implement any backoff, can this result in thundering-herd problems ? I do not have a real running usecase on hand to prove/verify this. Would like to hear recommendations if anybody had experienced similar scenario(s). Regards Muthu
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