Operator <-> Cluster, how many clusters

MongoDB Percona Operator for MongoDB
1

Hello

Is it possible to have a single operator and multiple clusters running in the same namespace, so that the operator manages all the clusters in the same namespace ?

2

Hi,

yes, this is working by default unless you specifically install operator in cluster wide mode and let it manage clusters across different namespaces.
The problem is at how many clusters you want one operator to manage - 2,5,10,100,1000?

Because there are some blocking operations currently with SmartUpdate strategy and if operator is blocked with fixing one cluster it means it is not reconciling other clusters, so I would be careful with having too many clusters (I’m not saying it wouldn’t work, but the more you will have the more likely you will bump into some issue), but several clusters it should handle normally.

3

Ok … thanks. The max is 16 clusters (with only 64 GB disks !).