Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2
Fixed In:
12.1.0, 12.0.0 HF3
Opened: Nov 11, 2015 Severity: 3-Major
Listing Virtual Edition (VE) pool members on an autoscaled pool does not show members being added or removed. Messages similar to the ones below are seen in /var/log/ltm: notice admin: ./aws-autoscale-pool-manager.sh : Starting. notice admin: ./aws-autoscale-pool-manager.sh : Using region us-west-2 notice admin: ./aws-autoscale-pool-manager.sh : Using AutoScaling Url http://autoscaling.us-west-2.amazonaws.com notice logger: ./aws-autoscale-pool-manager.sh : Updating pool : pool1 with instances from Auto Scale Group : err logger: ./aws-autoscale-pool-manager.sh : Failed to describe instance i-5556b78f err logger: ./aws-autoscale-pool-manager.sh : Aborting
Pool members are no longer automatically added or removed on a VE pool configured to use autoscale.
1. Boot up a VE instance on AWS using the BYOL marketplace image version 12.0.0.0.2.606. 2. Create autoscale group on AWS based on load requirements. 3. Configure pool autoscaling on VE (i.e., configure autoscale iApp, iCall, etc.).
Create the following symlink in /opt/aws/: ln -s ec2-api-tools-1.7.5.1 ec2-api-tools-1.6.13.0
Include Amazon EC2 web service tools from latest version of the toolset. Included is support for AWS pool autoscale functionality.