@JiaweiZhuang and I have noted an intermittent error that can happen when trying to request spot instances for the c5 instance type. The requested spot instances would be denied with the "bad parameters" error:
In this case, this error occurs because the default subnet field (red box below) must be defaulting to a region (us-east-1e) that does not have any c5 nodes. As you can see, spot prices are quoted for all regions except us-east-1e, which means that there are no nodes of this instance type.
The solution is simple. Manually select a subnet value for one of the regions for which a spot price is listed (e.g. us-east-1a):
This should cause your spot request to be fulfilled succesfully.
@JiaweiZhuang and I have noted an intermittent error that can happen when trying to request spot instances for the c5 instance type. The requested spot instances would be denied with the "bad parameters" error:
In this case, this error occurs because the default subnet field (red box below) must be defaulting to a region (us-east-1e) that does not have any c5 nodes. As you can see, spot prices are quoted for all regions except us-east-1e, which means that there are no nodes of this instance type.
The solution is simple. Manually select a subnet value for one of the regions for which a spot price is listed (e.g. us-east-1a):
This should cause your spot request to be fulfilled succesfully.