Re: Behavior of heartbeats in 2.1

[Ethan Li <et...@gmail.com>]

Hi Andrew,

I just replied to your question in another email thread. I hope it helps.
In short,  in 2.x, you don't need PaceMaker.

On Thu, Mar 19, 2020 at 7:16 PM Andrew Neilson <ar...@gmail.com> wrote:

> We're working on moving from v0.9.5 to 2.1 right now and as you can
> imagine there have been quite a few changes :).
>
> One of the improvements we've been looking forward to is the different
> approach to heartbeats since we had observed the bottleneck in ZK's
> transaction log.
>
> I've seen references to this change in this list:
> https://issues.apache.org/jira/browse/STORM-2693
>
> Could anyone describe the default behavior of heartbeats in 2.1 vs 1.2? I
> understand that in 1.2 you can use Pacemaker to remove the dependency on ZK
> for heartbeats.
>
> But I haven't seen any up-to-date information on how a cluster should be
> set up today. If we are trying to avoid the ZK bottleneck do we still need
> to use Pacemaker? Or do we get that for free now?
>
> Thanks,
> Andrew
>