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From Matthew Clarke <>
Subject Re: NCM and node on the same machine?
Date Mon, 15 Feb 2016 20:24:06 GMT
    You do not need a node on on the same VM running your NCM.  Are you
trying to say that by adding a node on the same machine as your NCM, all
nodes (even those on other VMS) all of a sudden joined?

Did you populate these fields in your files with IPs or
hostnames (recommended):

One of two things is probably happening here:
1. You are using hostnames and your NCM can not resolve those hostnames to
network reachable IP addresses.
2. you left those fields blank the nodes are likely reporting a value of
localhost as their address when they heartbeat to the NCM.  IN this cas
ethe NCM tries talking back to itself which can is why nothing works when
you don't have a Node local.

You should populate all your host, and address properties in your file.               <-- if you want to use
Remote Process groups (Site-to-Site)  or
     and the two above for clustering


On Mon, Feb 15, 2016 at 1:09 PM, Sai Kasturi <>

> Hi,
> I am very new to Nifi, and have been trying to get my head around the
> concept of clustering. I tried to create a cluster using VM's. I had the
> manager on one VM, the node on the other VM. Now, the cluster was not
> working(not even connecting). Then I added a node instance in the first VM,
> after which the cluster is successfully established. Also, when I shutdown
> the node instance on the first VM the whole cluster is gone.
> My doubt is "Do we need to have a node instance on the machine where the
> Cluster manager is" definitely??
> -----
> Sai K
> --
> View this message in context:
> Sent from the Apache NiFi Developer List mailing list archive at

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