Hi Penghui,
Thanks for your feed.

I have added them, please see the proposal again.

Thanks,
Cong Zhao

On 2022/07/29 05:08:10 PengHui Li wrote:
> We should also add a part for observability. Add some metrics to the delayed 
> index buckets and snapshots will help users to tune the
> configurations.
> 
> And please add a section to describe the upgrade and downgrade.
> 
> +1 for the proposal
> 
> Penghui
> On Jul 27, 2022, 23:50 +0800, Cong Zhao <zhaoc...@apache.org>, wrote:
> > Hi Enrico,
> > Thanks for your feedback.
> >
> > > How do you enable this feature? A flag in broker.conf?
> > Yes, we add a flag in broker.conf to enable this feature, I will update it
> >
> > > Is it possible to enable the feature by doing a rolling upgrade of the
> > > brokers? What happens if you have brokers that are still running the old
> > > tracker?
> > I think it is possible to enable the feature by doing a rolling upgrade of 
> > the brokers, because the delayed message index in the old tracker only 
> > exists in the memory.
> >
> > > Is it possible to rollback seamlessly?
> > It is possible to rollback seamlessly, the old memory tracker will rebuild 
> > the delayed message index.
> >
> > On 2022/07/27 06:19:28 Enrico Olivelli wrote:
> > > Good proposal.
> > >
> > > How do you enable this feature? A flag in broker.conf?
> > >
> > > Is it possible to enable the feature by doing a rolling upgrade of the
> > > brokers? What happens if you have brokers that are still running the old
> > > tracker?
> > >
> > > Is it possible to rollback seamlessly?
> > >
> > > Enrico
> > >
> > > Il Mer 27 Lug 2022, 05:39 Dezhi Liu <dezhi...@apache.org> ha scritto:
> > >
> > > > +1, good job.
> > > >
> > > > Thanks,
> > > > Dezhi
> > > >
> > > > On 2022/07/25 02:22:00 Cong Zhao wrote:
> > > > > Hello Pulsar Community,
> > > > >
> > > > >
> > > > > I would like to open a discussion here about PIP-195 : New bucket 
> > > > > based
> > > > > delayed message tracker. I look forward to your feedback.
> > > > >
> > > > >
> > > > > PIP: https://github.com/apache/pulsar/issues/16763
> > > > >
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Cong Zhao
> > > > >
> > > >
> > >
> >
> > Thanks,
> > Cong Zhao
> 

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