From a8699902b70db9af5e6480e500965daf82b58913 Mon Sep 17 00:00:00 2001 From: Julien Cornebise Date: Wed, 29 Mar 2023 08:54:05 +0100 Subject: [PATCH] Document spot instance behaviour (#508) --- docs/webapp/applications/apps_aws_autoscaler.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/docs/webapp/applications/apps_aws_autoscaler.md b/docs/webapp/applications/apps_aws_autoscaler.md index 72b2494b..bba8952c 100644 --- a/docs/webapp/applications/apps_aws_autoscaler.md +++ b/docs/webapp/applications/apps_aws_autoscaler.md @@ -41,6 +41,8 @@ each instance is spun up. * Resource Name - Assign a name to the resource type. This name will appear in the Autoscaler dashboard * EC2 Instance Type - See [Instance Types](https://aws.amazon.com/ec2/instance-types) for full list of types * Use Spot Instance - Check box to use a spot instance. Else, a reserved instance is used + * Regular Instance Rollback Timeout - Controls when the autoscaler will revert to starting a regular instance after failing to start a spot instance. It will first attempt to start a spot, and then wait and retry again and again. Once the time it waited exceeded the Regular Instance Rollback Timeout, the autoscaler will try to start a regular instance instead. This is for a specific attempt, where starting a spot fails and an alternative instance needs to be started. + * Spot Instance Blackout Period - Specifies a blackout period after failing to start a spot instance. This is related to future attempts: after failing to start a spot instance, all requests to start additional spot instances will be converted to attempts to start regular instances, as a way of "easing" the spot requests load on the cloud provider and not creating a "DOS" situation in the cloud account which might cause the provider to refuse creating spots for a longer period. * Availability Zone - The [EC2 availability zone](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.RegionsAndAvailabilityZones.html#Concepts.RegionsAndAvailabilityZones.AvailabilityZones) to launch this resource in * AMI ID - The AWS AMI to launch @@ -227,4 +229,4 @@ The policy includes the following permissions: } ] } -``` \ No newline at end of file +```