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From Mark Bean <mark.o.b...@gmail.com>
Subject Re: site-to-site timeout
Date Mon, 08 Jan 2018 19:08:18 GMT
Thanks for confirming. As this question was mostly for 1.x, I'm happy to
hear (and further read into your statement) that site-to-site will
continuously function on surviving Nodes even if one or more Nodes go down.

Thanks,
Mark


On Mon, Jan 8, 2018 at 1:58 PM, Mark Payne <markap14@hotmail.com> wrote:

> Mark,
>
> That does sound correct. The code would be probably be either in the
> nifi-site-to-site-client module
> or the in the StandardRemoteGroupPort, within the nifi-framework-core
> module. It's been a while since
> I've looked at 0.x, so it's hard to say for sure.
>
> In 1.x, this is a non-issue. The site-to-site client will iterate through
> all nodes in the remote cluster, attempting
> to connect to each of them to determine the cluster topology. If it fails
> to connect to any of them, it will then
> try again after a bit, until it is finally successful.
>
> Thanks
> -Mark
>
>
> > On Jan 8, 2018, at 1:29 PM, Mark Bean <mark.o.bean@gmail.com> wrote:
> >
> > It was observed in Apache NiFi 0.x that when the NCM goes down or becomes
> > unavailable, data being sent to the cluster via site-to-site continues to
> > flow to the Nodes for 24 hours. There is a state file
> > NIFI_HOME/conf/state/{RPG-UUID}.peers. When this file becomes > 24 hours
> > old, the site-to-site communication finally stops.
> >
> > First, can you confirm this is an accurate observation? Second, where in
> > the code can I find this? Lastly, and most importantly, does this
> behavior
> > apply to 1.x since there is no longer an NCM?
> >
> > Thanks,
> > Mark
>
>

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