Impact of Retained Messages on Clustering

Will retained messages always be shared within nodes of a cluster? I would think that they would need to be to ensure a true failover/high availability model.

Hello, @RickBullotta

Thank you for the outreach and the interest in HiveMQ!

With regards to retained messages within a cluster, the number of persistent data replicas can be customized within the cluster configuration. By default, this number is 2. This ensures that, at all times, at least two copies of each persisted data set are available. More specific details on HiveMQ’s node persistence can be found here.

Aaron from HiveMQ Team

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