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No, all clouds must overprovision their datacenters to handle sudden peak demand. Everybody doubles or tripes their clusters around the holiday season or shoppi
by sudhirj 5y ago
No, all clouds must overprovision their datacenters to handle sudden peak demand. Everybody doubles or tripes their clusters around the holiday season or shopping festivals, for example. For the other 350 days of the year, this capacity often lies unused - so they're auctioned off to the highest bidder (but usually at spot rates much less than the full rent). They're pre-emptible because if you need the servers for something serious/stable/continuous and make an on-demand rent request, the spot instances are pulled off their workloads and given to you at the full rate.
- ggm 5y agoThe overprovisioning makes this kind of product attractive. A small downside is a surge in complaints from customers who experience virtually no pre-empt, and then build a belief it's engines for cheap.. until the machine stops. Somebody once told me a policy of random offswitch helps
- sudhirj 5y agoThat’s probably why Google added the 24h cap, so you don’t get used to the machines being around all the time. Bit like a forced chaos monkey.