thanks, Lari, I replied to the PIP comment:
https://github.com/apache/pulsar/pull/23945#discussion_r1974929601

I applied your suggestion, and you can take another look. The
corresponding draft code has also been updated for your reference.

Thanks,
Baodi Shi

Lari Hotari <lhot...@apache.org> 于2025年2月28日周五 01:01写道:
>
> -1 (binding)
>
> I cannot approve this proposal in its current form due to a design
> issue with the metric implementation that I previously raised in the
> PR discussion.
>
> Issue:
> The current implementation tracks messages that have already been
> successfully dispatched to consumers, rather than counting messages
> that were actually throttled. This means `dispatch_throttled_msg_count
> `/`dispatch_throttled_bytes_count` would not measure throttled
> messages/bytes as intended, but instead track messages and bytes that
> were already successfully sent.
>
> The dispatch rate limiter throttling logic was recently consolidated
> to a single point in the codebase through PR #24012. This is where the
> metric should be implemented, rather than at the token consumption
> point.
>
> When addressing this, the design needs to account for re-throttled
> messages, as Baodi brought up in the PR discussion. It seems that we
> have two options:
> 1. Count each throttle event independently (simpler, but may count the
> same message multiple times)
> 2. Implement stateful tracking to count unique throttled messages
> (more accurate, but more complex)
>
> I recommend we:
> 1. Address this design issue in the implementation
> 2. Update the PR accordingly
> 3. Resume the vote once these corrections are made
>
> -Lari
>
> On Thu, 27 Feb 2025 at 15:37, Baodi Shi <ba...@apache.org> wrote:
> >
> > I would like to start voting thread for [improve][pip] PIP-406:
> > Introduce metrics related to dispatch_throttled_count
> >
> > - PR: https://github.com/apache/pulsar/pull/23945
> >
> > - Discuss thread:
> > https://lists.apache.org/thread/w9pq1jp3f22prsr97mxzj1yhdoo1cnc4
> >
> >
> > Thanks,
> > Baodi Shi

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