AWS - Elastic Load Balancing
You created a target group but your load balancer shows no healthy targets. What is the most likely issue?
You created a target group but your load balancer shows no healthy targets. What is the most likely issue?
medium📝 Debug Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Check common causes for no healthy targets
Targets not registered or security blocking health checks cause no healthy targets.Step 2: Analyze options
Security group blocking health check traffic prevents health checks from succeeding, causing targets to be unhealthy.Final Answer:
Security group blocks health check traffic -> Option BQuick Check:
Blocked health checks cause no healthy targets [OK]
Quick Trick: Check security groups allow health check ports [OK]
Common Mistakes:
MISTAKES- Ignoring security group rules
- Assuming region mismatch causes health check failure
- Using unsupported protocols like FTP
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