SpotFleetAllocationStrategy
The Spot Fleet allocation strategy. This parameter can be used only when Spot Fleet is enabled by setting SpotFleetMaxPrice.
| Default value | lowestPrice |
| Allowed values | lowestPrice, diversified, capacityOptimized |
Additional Information
The three strategies behave as follows:
| Value | Behavior |
|---|---|
lowestPrice |
Spot instances are launched from the pool with the lowest price. This maximizes cost savings but may lead to higher interruption rates if the cheapest pool runs low on capacity. |
diversified |
Spot instances are distributed across all available pools. This reduces the risk of all instances being interrupted simultaneously. |
capacityOptimized |
Spot instances are launched from pools with the most available capacity. This is the best choice for workloads that have a high cost of interruption. |
This parameter only takes effect when Spot Fleet is enabled via SpotFleetMaxPrice.
$ convox rack params set SpotFleetAllocationStrategy=capacityOptimized
Use Cases
- Using
lowestPrice(default) to minimize costs by selecting the cheapest available Spot pools - Switching to
capacityOptimizedfor workloads that need higher availability by selecting pools with the most available capacity, reducing the chance of interruption - Using
diversifiedto spread instances across multiple Spot pools, reducing the impact of a single pool being reclaimed
See Also
