I'm not really a hardware performance guy, still looking at that with cassandra. I use 2 t.large instances with reserved pricing, which saves about 80% on costs if you pay for 1 year.
On Mon, Dec 10, 2018 at 12:20 PM Riccardo Ferrari <ferra...@gmail.com> wrote: > Hi list! > > I am wondering what instance type is best for a small cassandra cluster on > AWS. > Actually I'd like to compare, or have your opinion about the following > instances: > > - r5*d*.xlarge (4vCPU, *19*ecu, 32GB ram and 1 NVMe instance store > 150GB) > - Need to attach a 600/900GB ESB > - i3.xlarge (4vCPU, *13ecu, *30.5GB ram and 9.5TB NVMe instance > store) > > Both have up to 10Gb networking. > I see AWS mark i3 as the NoSQL DB instances nevertheless r5d seems bit > better CPU wise. Putting a decently sized gp2 EBS I should have enough IOPS > especially we think to put commitlog and such on the 150GB NVMe storage. > About the workload: mostly TWCS inserts and upserts on LCS. > > What's you thought? > > PS: I would really avoid going for 8vCPU. >
