As a follow-up to the post from last year detailing the infrastructure costs, here’s an up-to-date snapshot.

We are still using Google Cloud Platform, although we generally prefer running open-source software on VMs rather than relying on hosted services, which are more expensive.

4 Cassandra nodes, 2TB HDD each (hm-4) ~ $512 + $320 = $832

1 Postgres node, 250GB SSD (hm-4) ~ $128 + $43 = $171

1 Redis node, 50GB SSD (n1-standard-2) ~ $48 + $9 = $57

5 web nodes (g1-small, autoscaling up to 20 nodes) ~ $50

30 parse nodes (preemptible highcpu-2, autoscaling from 3 to 150 nodes) ~ $330

1 backend node (preemptible n1-standard-2) ~ $14

40 retriever nodes ~ $150

5 proxy nodes ~ $15

3 load balancers ~ $45

Boot disks (10 GB per instance) ~ $50

Bandwidth out ~ $130

Total: $1844