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this is why ability to fall back to on-demand instances is critical.
by tuananh 7y ago
this is why ability to fall back to on-demand instances is critical.
- paulddraper 7y agoIt seems weird that AWS wouldn't just do this automatically, right?
- llarsson 7y agoYes and no. Because they do not want to disclose how much capacity they have and on demand costs more, customers would be left wondering if AWS unfairly decided to run on demand when spot could have been used instead.
- londons_explore 7y agoWhen there are no spot instances, it's common that on-demand instances can't be started either. Unless you paid for a reservation, you're SOL.
- tuananh 7y agothat's for you to decide how many percent of reserved instances out of total compute power you need. it's always a trade off. in that case, pct of cost saving is lower but availability is higher.
- maniktan 7y agoFwiw, Product@SpotInst here. Curious what makes you arrive at this conclusion? At SpotInst we have customers who migrate between Spot <--> RI <--> OD everyday.