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How to create multiple cluster of Prosys OPC UA server
June 26, 2019
9:20, EEST
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dhirajsakariya
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June 26, 2019
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Hello,

I am using Prosys OPC UA Server to update the node values in Inductive automation.

It is working fine without any issue.

Now we have requirement to process around 4 million tags and we will received updates from Kafka around 500k messages per second.

We need to have this service should be highly available.

Question:

is it possible to create multiple cluster nodes which will work parallel? when one fail , other will take over.

Can we setup load balancer which will balance the load on multiple clusters.

do have any example to share this kind of requirements.

With Regards,
Dhiraj

June 26, 2019
14:21, EEST
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Bjarne Boström
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Hi,

This case could help to give you some ideas: https://www.prosysopc.com/cases/kruger/ .

The number of tags is very large. They wont probably fit into memory nor it might not anyway make sense to even try, if you need multiple servers operating the data at the same time. Therefore you probably need to use MyBigNodeManager-style approach (see SDK samples), where you query some datastorage (kafka or some database inbetween or something else, this is up to you) instead of having UaNodes.

Note that if you use some kind of load balancer: Normal OPC UA is Session-based, therefore one session or in practice one connection must always route to the same server instance.

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