Question

Cluster communication between nodes in different zones

We have a requirement where there are is a single application with multiple nodes. Few of the nodes are in DMZ and other are at intranet.

Few questions:-

1. For setting cluster communication(Pega), what protocol is used for node to node communication. Does it use sockets?

2. Is it possible to define the nodes at DMZ as one cluster and the nodes at internet as one cluster. If we do that, how will be the internal product behaviour be for agent management, database locks as it is a single application.

3. Is it possible to set up separate AES one for internet and one for intranet as both application servers cannot speak with each other?

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Pega
December 29, 2017 - 5:45am

Hi Narendra,

Thanks for posting on PSC.

 

Refer this:-https://pdn.pega.com/community/pega-product-support/question/how-does-pega-7-use-hazelcast

Hope it answers your query. Kindly notify if it does.

Pega
December 29, 2017 - 5:47am

This has detailed regarding node implementation and other useful details:-

https://pdn.pega.com/data-nodes-pega-platform/data-nodes-pega-platform

 

Pega
December 29, 2017 - 2:40pm

1. For setting cluster communication(Pega), what protocol is used for the node to node communication? Does it use sockets?

Anuj - TCP socket is used for both server-to-server and client-to-server communications.

2. Is it possible to define the nodes at DMZ as one cluster and the nodes at the internet as one cluster? If we do that, how will be the internal product behavior be for agent management, database locks as it is a single application?

3. Is it possible to set up separate AES one for internet and one for the intranet as both application servers cannot speak with each other?

Anuj – Not so clear with what are you trying to implement here. Are you saying you want half of the node of the same cluster in DMZ pointing to same system name and database?  Please, could you give an overview of your architecture?