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https://issues.apache.org/jira/browse/NIFI-1190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353646#comment-15353646
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Michael Moser commented on NIFI-1190:
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I've been fooled by the Admin Guide into thinking nifi.web.http.host=0.0.0.0
should work, but it indeed does not work in a clustered NiFi.
Perhaps the cluster protocol chat can use the nifi.remote.input.socket.host
property. This property was originally created to be a public hostname that
other NiFi's can use to talk to this NiFi instance for site-to-site, but could
also be used for its own NCM to talk to this instance.
> 2 NICs - can't have a cluster node serve both the web ui and process requests
> -----------------------------------------------------------------------------
>
> Key: NIFI-1190
> URL: https://issues.apache.org/jira/browse/NIFI-1190
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 0.4.0
> Reporter: Andrew Grande
>
> In a NiFi cluster with 2 network interfaces I was unable to achieve the
> following:
> * Node registering with NCM and processing successfully
> * Node being accessible via the Web host/port on a public IP
> The problem seems to come from a requirement to specify *nifi.web.http.host*
> for the node. See a comment here
> https://github.com/aperepel/docker-nifi/blob/master/docker/run.sh#L28
> Basically, if I want it to bind to all interfaces (and not only internal IP,
> which is not accessible to the user browser), I have to specify 0.0.0.0. In a
> dynamic environment I don't know the ip at deploy time yet. But, this 0.0.0.0
> address is then passed as is to the NCM and it can't talk back to the node.
> If I specify a hostname, it resolves to an internal IP, and, while NCM and
> the node are happy, the user can't access the Web/API port for the node (NCM
> works).
> We should potentially split these 2 concerns into 2 properties:
> * Web HTTP/HTTPS host
> * Cluster protocol chat
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