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		07-19-2016
	
	
	
	
	
	
	
	
	
	
	
	
	
	
			
      
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| Title | Views | Posted | 
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| 3403 | 08-12-2016 05:05 PM | 
			
    
	
		
		
		01-18-2018
	
		
		07:36 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Andy LoPresto,  Just want to follow up on ticket https://issues.apache.org/jira/browse/NIFI-3834  Is it prioritized for this year?  Thanks.  
						
					
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		01-18-2018
	
		
		07:14 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Matt Clarke,  Kubernetes master ip is different with nifi-0.svc, which is an external pod dns.  So nifi-0.svc can't been access outside of Kubernetes.  I feel that nifi.web.proxy.host may work for this case.  Is there a way to disable the Request Header Check?  Thanks. 
						
					
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		01-18-2018
	
		
		06:32 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Matt Clarke,  Thank you for your clarification. Yes, I use the secure mode.  In NiFi v1.4, I setup the two properties as below.  nifi.web.https.host= nifi-0.svc   nifi.web.https.port= 9443  Please note nifi-0.svc is the pod name of the first nifi node.  Then, we have nifi-1.svc, nifi-2.svc in the setting of the other nifi nodes.  Normally, if we want to access NiFi cluster outside of Kubernetes,   we have to use the master node ip of Kubernetes. e.g. https://master-ip:9443/nifi/  Above worked perfectly before.  Now my question is in NiFi v1.5. What should I set for nifi.web.https.host?  1. If I don't do any changes, it gives me "Invalid Host Header" error.  2. If I set it as nifi.web.https.host = master-ip in all three nifi nodes in the cluster.  The error in log is:  2018-01-18 17:10:28,017 ERROR [NiFi logging handler] org.apache.nifi.StdErr Failed to start web server: Cannot assign requested address  One thing confuses me is: I have three nifi nodes in a cluster. Should I set "nifi.web.https.host" in three nifi.property file to the same ip value?  BTW, are we able to disable this request header check?  Thanks. 
						
					
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		01-18-2018
	
		
		04:00 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Matt Clarke,  Thank you for your response.   Is it nifi.web.http(s).host or nifi.web.proxy.host?  I have already put nifi.web.https.host = the-nifi-node-ip  We deploy nifi cluster in Kubernete, What should I change it to?  Thanks. 
						
					
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		01-18-2018
	
		
		02:31 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
	
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							 Hi Guys,  I just upgraded NiFi from v1.4 to v1.5. The cluster is set in secure mode and running in Kubernetes.   But I found below error in Web UI.  System Error
The request contained an invalid host header [server:port] in the request [/nifi/]. Check for request manipulation or third-party intercept.  Is it due to nifi.web.proxy.host property? How do I setup it? the IP of the nifi node?  Thanks. 
						
					
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			Apache NiFi
			
    
	
		
		
		01-10-2018
	
		
		03:37 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Benoit Rousseau,  Thank you for your response.  For the jmx_exporter option, my main trouble is where can I find or create the "nifi.yml".   I found a couple of template for Kafka and Cassandra. But How do I know the existing jmx metrics in NiFi.   I didn't find any documents on it.  Would you please share a template?  Thanks. 
						
					
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		01-08-2018
	
		
		06:36 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi Guys,  I know NiFi provides ReportTask component to export metrics to external monitoring systems.  I was wondering whether we can use a generic approach to collect NiFi metrics via JMX.  For example, there is a JMX exporter to Prometheus by collecting metrics from java application. May I use it to collect NiFi metrics to Prometheus?  Thanks. 
						
					
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			Apache NiFi
			
    
	
		
		
		10-19-2017
	
		
		08:53 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @Abdelkrim Hadjidj   Perfect! Much clearer now.  Thanks. 
						
					
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		10-18-2017
	
		
		08:41 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Abdelkrim Hadjidj  Thank you for your response. Very helpful.  I do have retrieve site-to-site details policy set for all nodes in the cluster.  And the RPG can connect and refresh.  However, the "Retrieve Data via site-to-site" item is grey and disabled for the Input Port.  Then, I found below document.   https://community.hortonworks.com/questions/67255/how-can-i-set-an-inputoutput-ports-for-a-remote-pr.html  It says Input Port must be in the root level to enable S2S.  I was wondering is it a limitation?  How about I want to put my entire flow in a processor group?  BTW, after S2S is enabled. I still find the file distribution is not even. One node processes more than the others.  Is there a way to control the distribution?  Thanks.     
						
					
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		10-17-2017
	
		
		08:14 PM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Matt Burgess  Thank you for your response.  I setup RPG and an Input Port.  It seems RPG can connect the remote nifi instance.  However, when I click Manage Remote Ports, it can't display the input port I added.  BTW, I use a secured 3 node cluster with S2S enabled.  Please see the attached screenshot.  Did I miss anything?  Thanks.     
						
					
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