What is the recommended number of Argo workflow-controller replicas in production? [closed]
According to Argo's scaling documentation, the Argo Workflows controller cannot be horizontally scaled. In other words, you should only have one replica.
You can have multiple Argo installations (called "instances" in their documentation) if you're okay splitting your work up that way. You can also vertically scale the single controller replica to better handle large workflows or high numbers of workflows.