@Raj B Are you using SFTP to push data? ... View more

@Raj B Is it possible to have NiFi pull the data from the source? ... View more

@Raj B Can java be installed on the load balancer? If so, I would install NiFi on the load balancer and then just add a Remote process group to the NiFi instance on the load balancer and let NiFi handle the load balancing. ... View more

@Ed Prout One way around the issue, is to monitor the success relationship out of the GetSplunk processor using the MonitorActivity processor. If data does not pass through in a set time period, the the MonitorActivity processor generates an "inactive" flow file and this can be used as a trigger for an ExecuteScript processor which would run a curl script to restart the processor. Not an elegant solution, but it should work. ... View more

@Gu Gur You could you the ExecuteScript processor, but that would probably be more work than just doing it manually since it is only two nodes you are adding. I am assuming you have not secured the cluster. You could just copy the conf directory over to the new nodes, and then update the all entries to match the name of the new host. For example, assuming the current nodes are node1.localdomain, node2.localdomain and node3.localdomain, then copy node3's conf directory to a new node you want to add, you could just change everywhere you have node3 to node4, or whatever is the new node system name. Are you following me? ... View more

@Harish S If you run the klist command as the user running NiFi, what do you see? ... View more

@Raj B I would agree. Are you running the curl commands on the same system with the NiFi instance you are running the curl command against? Try running the curl commands from a remote system that can reach the NiFi instance. Also, make sure you are not logged into the NiFi instance, via the UI, while you are running the curl commands, I have found that can cause some issues. ... View more

@Raj B Try something like this: curl 'https://<nifi-server>:8077/nifi-api/system-diagnostics' -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' -H 'Authorization: Bearer eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJjbj1SUkJvbGxhLG91PURhdGEgTWFuYWdlbWVudCxvdT1QT0Usb3U9UGVvcGxlLGRjPW1kYW5kZXJzb24sZGM9ZWR1IiwiaXNzIjoiTGRhcFByb3ZpZGVyIiwiYXVkIjoiTGRhcFByb3ZpZGVyIiwicHJlZmVycmVkX3VzZXJuYW1lIjoiUlJCb2xsYSIsImtpZCI6MzMsImV4cCI6MTQ5MjA5OTcyNiwiaWF0IjoxNDkyMDkyNTI2fQ.xIViD0Ea_fok6qV5ghnf65FPbO9Reh_MQxVG2Q1krl4%' --compressed --insecure --tlsv1.2 In addition, make sure the user you are accessing the UI with has the correct policies to access to the system-diagnostics. ... View more

@Gu Gur No, you only have to configure the two new nodes to be part of the cluster that is already running. Make sure to configure to use the same root node in zookeeper, set this property nifi.zookeeper.root.node, to the same values that the other three nodes are using, and of course configure the cluster node properties. ... View more

@Raj B I have found, depending on some of the default system settings, that I need an additional flag on the subsequent curl commands after getting the token. Try adding --tlsv1.2 after the compressed and insecure flags. Also, you will still need the Content-type information on subsequent curl commands. ... View more

@subash sharma The Rest API documentation will be found at the URL: https://nifi-host:port/nifi-docs/rest-api Just replace the the nifi-host and port values with your information. ... View more

@subash sharma Here is the format of the command you need to get a token: curl 'https://nifi-host:port/nifi-api/access/token' -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' --data 'username=ldap-username&password=ldap-password' --compressed —insecure Then add the following to all of your subsequent curl commands -H 'Authorization: Bearer token-returned’ ... View more