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 <marka...@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.b...@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 > >