AWS Elastic Load Balancer and target group health check fail for no apparent reasonCan you change an AWS...
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AWS Elastic Load Balancer and target group health check fail for no apparent reason
Can you change an AWS Elastic Load Balancer health check without causing instances to go out of service?Single AWS Elastic Load Balancer to multiple EC2 instance pools?OpsWorks Auto Healing instances that fail ELB (load balancer) testEC2 Failing Load Balancer Health CheckAWS Elastic Load Balancer HTTP health check ping not reaching Rails application serverAWS ELB health check when using nginx and TCPELB Health check passes. Scaling Group Shows unhealthy. With scaling group set to the ELB checkAWS Elastic Beanstalk Health Check on Alternate Port using Application Elastic Load BalancerDetermine load balancer health check timeoutAWS Elastic Load Balancer: Forwarding Requests to all Instances
I have completed my AWS ELB architecture for our website and successfully created the Launch Configuration and Target Groups for which instances are created behind the Load Balancer.
My configuration is as follows :
Target Group
WebInstancesHttps
HTTPS through port 443
Health check
HTTPS
Path : /healthy.html
Port 443
Healthy threshold : 10
Unhealthy threshold : 2
Timeout : 5
Interval : 30
Autoscaling group
Desired : 2
Min : 2
Max : 3
No scaling policy for now.
Load Balancer
Application load balancer that listens on HTTP:80 and HTTPS:443 that both forward to the mentioned target group.
The problem
I have one remaining issue where my instances keep being terminated because of failed health checks. Although, querying the path mentioned in health check configuration works all the time and the instance seems to have no issue at all.
Every now and then, an instance becomes unhealthy and then a new one is instantiated back.
I have read all the documentation regarding health checks and I understand the theory behind it but I don't understand why hosts keep failing health checks at times while there are near to no traffic or load on the application.
I have a hard time investigating the issue as all configuration seem adequate.
Some insights would be greatly appreciated!
Thanks
amazon-web-services load-balancing amazon-elb autoscaling healthcheck
asked 3 mins ago
wlarchevequewlarcheveque
612
add a comment |
I have completed my AWS ELB architecture for our website and successfully created the Launch Configuration and Target Groups for which instances are created behind the Load Balancer.
My configuration is as follows :
Target Group
WebInstancesHttps
HTTPS through port 443
Health check
HTTPS
Path : /healthy.html
Port 443
Healthy threshold : 10
Unhealthy threshold : 2
Timeout : 5
Interval : 30
Autoscaling group
Desired : 2
Min : 2
Max : 3
No scaling policy for now.
Load Balancer
Application load balancer that listens on HTTP:80 and HTTPS:443 that both forward to the mentioned target group.
The problem
I have one remaining issue where my instances keep being terminated because of failed health checks. Although, querying the path mentioned in health check configuration works all the time and the instance seems to have no issue at all.
Every now and then, an instance becomes unhealthy and then a new one is instantiated back.
I have read all the documentation regarding health checks and I understand the theory behind it but I don't understand why hosts keep failing health checks at times while there are near to no traffic or load on the application.
I have a hard time investigating the issue as all configuration seem adequate.
Some insights would be greatly appreciated!
Thanks
amazon-web-services load-balancing amazon-elb autoscaling healthcheck
asked 3 mins ago
wlarchevequewlarcheveque
612
add a comment |
I have completed my AWS ELB architecture for our website and successfully created the Launch Configuration and Target Groups for which instances are created behind the Load Balancer.
My configuration is as follows :
Target Group
WebInstancesHttps
HTTPS through port 443
Health check
HTTPS
Path : /healthy.html
Port 443
Healthy threshold : 10
Unhealthy threshold : 2
Timeout : 5
Interval : 30
Autoscaling group
Desired : 2
Min : 2
Max : 3
No scaling policy for now.
Load Balancer
Application load balancer that listens on HTTP:80 and HTTPS:443 that both forward to the mentioned target group.
The problem
I have one remaining issue where my instances keep being terminated because of failed health checks. Although, querying the path mentioned in health check configuration works all the time and the instance seems to have no issue at all.
Every now and then, an instance becomes unhealthy and then a new one is instantiated back.
I have read all the documentation regarding health checks and I understand the theory behind it but I don't understand why hosts keep failing health checks at times while there are near to no traffic or load on the application.
I have a hard time investigating the issue as all configuration seem adequate.
Some insights would be greatly appreciated!
Thanks
amazon-web-services load-balancing amazon-elb autoscaling healthcheck
asked 3 mins ago
wlarchevequewlarcheveque
612
I have completed my AWS ELB architecture for our website and successfully created the Launch Configuration and Target Groups for which instances are created behind the Load Balancer.
My configuration is as follows :
Target Group
WebInstancesHttps
HTTPS through port 443
Health check
HTTPS
Path : /healthy.html
Port 443
Healthy threshold : 10
Unhealthy threshold : 2
Timeout : 5
Interval : 30
Autoscaling group
Desired : 2
Min : 2
Max : 3
No scaling policy for now.
Load Balancer
Application load balancer that listens on HTTP:80 and HTTPS:443 that both forward to the mentioned target group.
The problem
I have one remaining issue where my instances keep being terminated because of failed health checks. Although, querying the path mentioned in health check configuration works all the time and the instance seems to have no issue at all.
Every now and then, an instance becomes unhealthy and then a new one is instantiated back.
I have read all the documentation regarding health checks and I understand the theory behind it but I don't understand why hosts keep failing health checks at times while there are near to no traffic or load on the application.
I have a hard time investigating the issue as all configuration seem adequate.
Some insights would be greatly appreciated!
Thanks
amazon-web-services load-balancing amazon-elb autoscaling healthcheck
amazon-web-services load-balancing amazon-elb autoscaling healthcheck
asked 3 mins ago
wlarchevequewlarcheveque
612
asked 3 mins ago
wlarchevequewlarcheveque
612
asked 3 mins ago
wlarchevequewlarcheveque
612
asked 3 mins ago
wlarchevequewlarcheveque
612
asked 3 mins ago
wlarchevequewlarcheveque
612
612
add a comment |
add a comment |
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