Yes, we are using it at iFunny (20М+ installs on iOS + Android). 180 virtual servers in 12 clusters. Reasons are scalability and reliability. We can turn off an

Yes, we are using it at iFunny (20М+ installs on iOS + Android). 180 virtual servers in 12 clusters. Reasons are scalability and reliability. We can turn off any baremetal host under those virtual servers and system won't even notice that (it actually happens 2-3 times a year). We can add/remove replicas to scale reading load and add/remove shards to scale writes.