Hi Tao, You seemed to miss sending the link that you were referring to. Are you referring to the thread "[discuss] Support fail-fast strategy when broker rate-limited" [1] ?
-Lari 1 - https://lists.apache.org/thread/tp2f1ghomj2kw5ltgz8w8k5s58gs88qz On 2023/11/03 12:11:31 太上玄元道君 wrote: > Hi Girish, > > There is also a discussion thread[1] about rate-limiting. > > I think there is some conflicts between some kind of rate-limiter and > backpressure > > Take the fail-fast strategy as an example: > Brokers have to reply to clients after receiving and decode the message, > but the broker also has the back-pressure mechanism. Broker cannot read > messages because the channel is `disableAutoRead`. > > So the rate-limiters have to adapt to back-pressure. > > Thanks, > Tao Jiuming > > 2023年10月19日 20:51，Girish Sharma <scrapmachi...@gmail.com> 写道： > > Hi, > Currently, there are only 2 kinds of publish rate limiters - polling based > and precise. Users have an option to use either one of them in the topic > publish rate limiter, but the resource group rate limiter only uses polling > one. > > There are challenges with both the rate limiters and the fact that we can't > use precise rate limiter in the resource group level. > > Thus, in order to support custom rate limiters, I've created the PIP-310 > > This is the discussion thread. Please go through the PIP and provide your > inputs. > > Link - https://github.com/apache/pulsar/pull/21399 > > Regards > -- > Girish Sharma >
