n>3 nodes are in a pool at LTM(F5). No clustering at backend. Do we need to reserve multiple ports in the range 5701-5800 for cluster communication?
Hello Rajiv Nistala and Aditya .... Can you please clarify my below queries on the same, we recently upgraded to 7.1.9:
1. We have n(n>3) nodes are in a pool at the LTM(F5) and there is no clustering on the backend even at the weblogic end for pega application so do we still need to reserve multiple ports in the range 5701-5800 for cluster communication?
2. As per pega recommendation - To enable communication between Elasticsearch host nodes in the cluster, open a TCP port in the range 9300-9399 on each node. - So what if the desired port in not available in Production, I mean what could be consequences?
The ports 5701 onwards for Hazelcast and 9300 onwards for ElasticSearch is for the inter node communication between all the nodes. These ports need not be exposed outside of the local network on which these nodes reside.
There are prconfig settings available which can override the ports to be used if the default ports are reserved for some other purpose in your machine / network.