OpenSearch running on Dockers

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Hi Dojo,

I would like to connect an OpenSearch cluster running on Dockers, but I always have the same error:

OpenSearch.Net.OpenSearchClientException: Maximum number of retries reached, failed over to all the known alive nodes before failing. Call: unknown resource ---> OpenSearch.Net.PipelineException: Failed sniffing cluster state. ---> System.AggregateException: One or more errors occurred. ---> OpenSearch.Net.PipelineException: An error occurred trying to read the response from the specified node. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond IPNode:9200

I have two dockers running, 1 per node. DB.xml is linked to server which contains the dockers. I think that problem should be on docker-compose.yml or opensearch.yml from cluster.

Does OpenSearch dockers supported by DM? If yes, which is the best configuration on cluster?

Thanks!

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 31st May 2024
Robbe De Ghein [SLC] [DevOps Advocate] commented

Hi Daniel, are you running the docker container in Windows Subsystem for Linux (WSL)?
Daniel Martinez [DevOps Enabler] commented

Hello Robbe, no. Everything is running on Linux.
Robbe De Ghein [SLC] [DevOps Advocate] commented

Did you configure “network.publish_host” to anything?
Daniel Martinez [DevOps Enabler] commented

Yes, Robbe. Do you know if containers need an extra network configuration? Maybe the problem is on communication between both container nodes.
Robbe De Ghein [SLC] [DevOps Advocate] commented

I believe this is a problem with the network configuration, but it’s hard to say exactly without knowing anything about your configuration.

I think that the nodes are trying to sniff the cluster configuration but hitting timeouts due to it binding to the internal & local ip inside the docker container instead of to the exposed IP which is reachable from outside the container.

What did you set the “network.publish_host” to?
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Hi Daniel,
Have you been able to solve this based on the comments above? If yes, could you select this answer to indicate that this question can be closed?

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 31st May 2024
Daniel Martinez [DevOps Enabler] commented

Hi Marieke,
Finally we decided to use a different architecture to run OpenSearch. So you can close this question.
Regards!
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