Bridge between 2 UMH instances
# umh-supportd
Diederik
11/19/2025, 10:14 AMImagen i have a classic and core instance. I'm collecting data from the core instance and want to get all data from the core instance in the _historian of the classic instance.
How should we approach this? Should we add a a standalone flow and use the kafka_to_kafka_historian_bridge example?
the naming/terminology doesn't really make sense to me. we want a bridge between instances but we have to make a standalone connection while there is an option "Bridge"?
Am i misunderstanding something?
Diederik
11/19/2025, 10:29 AMfor firewalling i suppose this is required?
Port Purpose Direction
9092/tcp PLAINTEXT Kafka listener Bridge → Remote Kafka
31092/tcp NodePort / external Kafka listener (as in your config) Bridge → Remote Kafka
are both directions required?
Diederik
11/19/2025, 10:59 AMWould you recommend other types of bridges instead? @krgrsebastian was talking a http instead of Kafka bridge, what would be the benefit? (this is also no example flow, so for sure harder to implement)
j
Jermuk
11/19/2025, 2:57 PMour idea was to stream it to an HTTP endpoint. so on the receiver side expose an HTTP endpoint hwere you can write into kafka. and then write towards that HTTP endpoint.
advantages:
- you can put an nginx in front of it, and handle there all the authenticartion/authroizartion. HTTP is much easier to secure than kafka and you move it out of the product.
- you can see on the receiving instance the throughput as well on the sending instance. both in the UI.
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