I figured out the issue. I needed to set my PutTCP's "Outgoing Message Delimiter" to the ListenTCP or ListenSyslog's default "Message Delimiter", which is the new line character "\n".
On 2020/11/19 17:14:19, Thane Durey <tdu...@harding.edu> wrote: > All, > > I'm attempting to setup a Load Balancer (LB) in front of my NiFi cluster > using another NiFi server. I've seen a successful example used online and it > was very straight forward. > 1. Receive data on LB > 2. And then send it to the cluster using RoundRobin > > Pretty straight forward. > > FYI, here is my setup: > All machines are CentOS7 > I'm using NiFi version 1.12.1 on LB and Cluster > > LB's PutTCP: > - Max Size of Socket Send Buffer: 10MB > > Cluster ListenTCP and ListenSyslog: > - Receive Buffer Size: 128 MB > - Max Size of Message Queue: 1,000,000 > - Max Size of Socket Buffer: 100 MB > > On my Load Balancer, I'm using Round Robin and sending my TCP data to my NiFi > Cluster. I understand this isn't the best solution for the long term, and > it's not easily scalable. Regardless, I'm sending the TCP data to my NiFi > Cluster using PutTCP. > > On my NiFi Cluster, I'm trying to receive this TCP traffic (sent on a > specific port), but nothing is coming through on my ListenTCP (same port). > This confused me, and my first assumption was I'm not receiving TCP data at > all. After running a tcpdump, I can confirm I'm receiving TCP data over the > specified port from my Load Balancer. I even ran tcpdump with the -A flag so > I can see the actual data. So it's not empty TCP traffic (even though I can > see the length of the data is greater than 0). > > So, because I can see the TCP traffic on my NiFi nodes, why wouldn't I be > able to receive the data using ListenTCP? I'm even using ListenSyslog to see > if that would work. Nothing. > > > Thoughts? I really appreciate any time you put into this. Thank you in > advance. >
