Hi Frank,

You can configure the Load Shedding Strategy in the `broker.conf` file
using `loadBalancerLoadSheddingStrategy`.

The configuration is missing from the document you referenced--it
should be there, though.

There was a recent PR to add documentation describing the different
configuration options: [0]. Those docs won't go live until 2.10.0 is
released. We could probably add parts of that documentation to the
historical docs, since the Shedding Strategy has existed for some
time.

- Michael

[0] https://github.com/apache/pulsar/pull/12902/files

On Fri, Jan 7, 2022 at 1:29 PM Frank Kelly <fke...@cogitocorp.com> wrote:
>
> This is very cool.
>
> How is `ThresholdShedder` chosen - I don't see if referenced here?
> https://pulsar.apache.org/docs/en/reference-configuration/
>
> -F
>
> On Thu, Jan 6, 2022 at 7:45 PM Sijie Guo <guosi...@gmail.com> wrote:
>
> > +1 ThresholdShedder is a much better policy
> >
> > On Tue, Jan 4, 2022 at 6:24 AM Hang Chen <chenh...@apache.org> wrote:
> >
> > > https://github.com/apache/pulsar/issues/13340
> > >
> > > Pasted below for quoting convenience.
> > >
> > > ----
> > > ### Motivation
> > > The ThresholdShedder load balance policy since Pulsar 2.6.0 by
> > > https://github.com/apache/pulsar/pull/6772. It can resolve many load
> > > balance issues of `OverloadShedder` and works well in many Pulsar
> > > production clusters.
> > >
> > > In Pulsar 2.6.0, 2.7.0, 2.8.0 and 2.9.0, Pulsar's default load balance
> > > policy is `OverloadShedder`.
> > >
> > > I think it's a good time for 2.10 to change default load balance
> > > policy to `ThresholdShedder`, it will make throughput more balance
> > > between brokers.
> > >
> > > ### Proposed Changes
> > > In 2.10 release,for `broker.conf`, change
> > > `loadBalancerLoadSheddingStrategy` from
> > > `org.apache.pulsar.broker.loadbalance.impl.OverloadShedder` to
> > > `org.apache.pulsar.broker.loadbalance.impl.ThresholdShedder`
> > >
> >

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