Autoscaling Disabled Due to Resource Constraints

Autoscaling was disabled due to resource constraints on the cluster.

Find this helpful?

What Happened

During a traffic spike, autoscaling was unable to trigger because the cluster had insufficient resources to create new nodes.

Diagnosis Steps

1Reviewed Cluster Autoscaler logs and found that the scaling attempt failed because there were not enough resources in the cloud to provision new nodes.
2Observed that resource requests and limits on existing pods were high.

Root Cause

Cluster was running at full capacity, and the cloud provider could not provision additional resources.

Fix/Workaround

• Reduced resource requests and limits on existing pods.
• Requested additional capacity from the cloud provider to handle scaling operations.

Lessons Learned

Autoscaling is only effective if there are sufficient resources to provision new nodes.

How to Avoid

1Monitor available cluster resources and ensure that there is capacity for scaling events.
2Configure the Cluster Autoscaler to scale based on real-time resource availability.