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ECS Ec2 Instance hanging outgoing TCP connections
The Next CEO of Stack OverflowEfficiency difference btw AWS EC2 Instance and ContainerCost diff between manual docker on ec2 and ECSIn terraform, howto attach a backing ec2 instance to an ecs serviceAWS Elastic Beanstalk CPU CappedAWS - shutdown EC2 of an ECS cluster after task is doneShutdown old EC2 instances only after creating new one in when changing ECS host ami in autoscaling groupHow to automate OS/ECS-agent updating on a EC2 instance in ECS Auto Scaling environment?AWS - ECS with ELB not working, instance IP works thoughecs instances generated via Auto Scaling group not registering to ecs clusterNeed help in finding reason behind EC2 instance not able to initiate any outgoing network activity
I'm having issue with EC2/ECS server in AWS.
In my company we're having dockerized application running on ECS cluster (it's nodes are running on Linux 2 ECS optimized cluster AMIs). ECS Cluster is located in Private VPC subnets with NAT Gateway so they can access Internet. In front of it we have Load balancers in Subnets with Internet gateway (so they can be accessed from outside). Security groups, Network ACLs are properly configured.
Further there are two docker apps. Let's call them application A and application B. Each of theme are behind Internet-Facing Application Load Balancer.
Then how it works: Application A receives requests from Internet, put request on application A and also connects to some other application. It's possible that container A and container B are running on the same ECS Cluster node.
At some point application A is not able to connect to the Internet, or works rarely.
First I've been thinking that it's a problem with application, however after logging in to the Linux I've noticed that even with stopped application A container and no other containers running (apart from ECS-agent container) - operating system is having problems establishing TCP connections, when I do curl www.google.com - first few requests are fine but one hangs, and it repeats. Ping is working.
Dockerized containers are configured to use docker bridged networking and register targets behind load balancers es EC2 instances pointing to ports on which application is listening.
Any ideas what could cause the issue?
What is worth to add is that EC2 instance reboot doesn't resolve the issue so probably it's not OS problem but hypervisor. I wanted to try to stop and start instance to it could strat on different host but it terminated immediately and new one was spwaned because it's in autoscaling group.
networking amazon-web-services amazon-ec2 tcp
asked yesterday
valdekvaldek
12
add a comment |
I'm having issue with EC2/ECS server in AWS.
In my company we're having dockerized application running on ECS cluster (it's nodes are running on Linux 2 ECS optimized cluster AMIs). ECS Cluster is located in Private VPC subnets with NAT Gateway so they can access Internet. In front of it we have Load balancers in Subnets with Internet gateway (so they can be accessed from outside). Security groups, Network ACLs are properly configured.
Further there are two docker apps. Let's call them application A and application B. Each of theme are behind Internet-Facing Application Load Balancer.
Then how it works: Application A receives requests from Internet, put request on application A and also connects to some other application. It's possible that container A and container B are running on the same ECS Cluster node.
At some point application A is not able to connect to the Internet, or works rarely.
First I've been thinking that it's a problem with application, however after logging in to the Linux I've noticed that even with stopped application A container and no other containers running (apart from ECS-agent container) - operating system is having problems establishing TCP connections, when I do curl www.google.com - first few requests are fine but one hangs, and it repeats. Ping is working.
Dockerized containers are configured to use docker bridged networking and register targets behind load balancers es EC2 instances pointing to ports on which application is listening.
Any ideas what could cause the issue?
What is worth to add is that EC2 instance reboot doesn't resolve the issue so probably it's not OS problem but hypervisor. I wanted to try to stop and start instance to it could strat on different host but it terminated immediately and new one was spwaned because it's in autoscaling group.
networking amazon-web-services amazon-ec2 tcp
asked yesterday
valdekvaldek
12
add a comment |
I'm having issue with EC2/ECS server in AWS.
In my company we're having dockerized application running on ECS cluster (it's nodes are running on Linux 2 ECS optimized cluster AMIs). ECS Cluster is located in Private VPC subnets with NAT Gateway so they can access Internet. In front of it we have Load balancers in Subnets with Internet gateway (so they can be accessed from outside). Security groups, Network ACLs are properly configured.
Further there are two docker apps. Let's call them application A and application B. Each of theme are behind Internet-Facing Application Load Balancer.
Then how it works: Application A receives requests from Internet, put request on application A and also connects to some other application. It's possible that container A and container B are running on the same ECS Cluster node.
At some point application A is not able to connect to the Internet, or works rarely.
First I've been thinking that it's a problem with application, however after logging in to the Linux I've noticed that even with stopped application A container and no other containers running (apart from ECS-agent container) - operating system is having problems establishing TCP connections, when I do curl www.google.com - first few requests are fine but one hangs, and it repeats. Ping is working.
Dockerized containers are configured to use docker bridged networking and register targets behind load balancers es EC2 instances pointing to ports on which application is listening.
Any ideas what could cause the issue?
What is worth to add is that EC2 instance reboot doesn't resolve the issue so probably it's not OS problem but hypervisor. I wanted to try to stop and start instance to it could strat on different host but it terminated immediately and new one was spwaned because it's in autoscaling group.
networking amazon-web-services amazon-ec2 tcp
asked yesterday
valdekvaldek
12
I'm having issue with EC2/ECS server in AWS.
In my company we're having dockerized application running on ECS cluster (it's nodes are running on Linux 2 ECS optimized cluster AMIs). ECS Cluster is located in Private VPC subnets with NAT Gateway so they can access Internet. In front of it we have Load balancers in Subnets with Internet gateway (so they can be accessed from outside). Security groups, Network ACLs are properly configured.
Further there are two docker apps. Let's call them application A and application B. Each of theme are behind Internet-Facing Application Load Balancer.
Then how it works: Application A receives requests from Internet, put request on application A and also connects to some other application. It's possible that container A and container B are running on the same ECS Cluster node.
At some point application A is not able to connect to the Internet, or works rarely.
First I've been thinking that it's a problem with application, however after logging in to the Linux I've noticed that even with stopped application A container and no other containers running (apart from ECS-agent container) - operating system is having problems establishing TCP connections, when I do curl www.google.com - first few requests are fine but one hangs, and it repeats. Ping is working.
Dockerized containers are configured to use docker bridged networking and register targets behind load balancers es EC2 instances pointing to ports on which application is listening.
Any ideas what could cause the issue?
What is worth to add is that EC2 instance reboot doesn't resolve the issue so probably it's not OS problem but hypervisor. I wanted to try to stop and start instance to it could strat on different host but it terminated immediately and new one was spwaned because it's in autoscaling group.
networking amazon-web-services amazon-ec2 tcp
networking amazon-web-services amazon-ec2 tcp
asked yesterday
valdekvaldek
12
asked yesterday
valdekvaldek
12
edited yesterday
valdek
asked yesterday
valdekvaldek
12
asked yesterday
valdekvaldek
12
asked yesterday
valdekvaldek
12
12
add a comment |
add a comment |
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