Edge keeps getting disconnected from Main Thingsboard

[KershanG]

I keep getting random disconnects resulting in failed uplink messages. Sometimes a restart will resolve the issue but it will eventually disconnect again. Both machines are on the same network and can connect to each other so I did rule that out.

Is there specific configuration details where i could look to locate why it would be disconnecting.

I do have quite a few Javascript functions in the rule chains, is it possible the failure of these nodes, cause a disconnect to the Main Thingsboard server

The setup is as follows:
Docker Cluster installation for both Main and Edge v4.2.0
Hybrid database with kafka as message queue for both Main and Edge
redis-cluster setup for Edge

Here are some EDGE logs from tb-edge1 node :

_docker-edge-tb-edge1-1_logs.txt

If this continues I would have to consider switching to separate standalone Thingsboard instances.
Any assistance would be appreciated. Thanks.

[volodymyr-babak]

@KershanG

This is the bug we found in 4.1 and 4.2 versions, and a hotfix will be included in 4.2.1 and next releases.
The issue was caused by incorrect behavior of the Kafka Consumer in scenarios where the Edge keeps disconnecting.

We have already updated version 4.2 by uploading a new Docker image to the repository.
Please do the following on your PC where the Edge is running:

docker pull thingsboard/tb-edge:4.2.0EDGE

Then, re-create your Docker container for ThingsBoard Edge.
This will ensure your instance is running with the hotfixed version.

The hotfix will also be included in the upcoming LTS 4.2.1 and Major 4.3 release scheduled for this month.

Additionally, once the LTS releases are available for ThingsBoard CE Server and ThingsBoard Edge CE, I recommend updating them.

Apologies for the inconvenience, and thank you for your patience!

[volodymyr-babak]

@KershanG

The Docker image for 4.2 is uploaded.

[KershanG]

@volodymyr-babak

That's great. Thank you for the feedback