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Questions tagged [elastic-load-balancer]

Use this tag for questions related to the Elastic Load Balancer, used to automatically distributes incoming application traffic across multiple Amazon EC2 instances.

Usually accompanies this tag, so you are encouraged to use it too, if applicable.

331 questions
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Eureka server health check fails in AWS Application Load Balancer

I have configures a eureka server in ECS cluster, and used an application load balancer for it's service. The eureka is configured to accept authentication using the property file as below. security.user.name=xxxxx security.user.password=yyyy In…
Lahiru Liyanapathirana
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SilverStripe behind load balancer

I've got an instance of SilverStripe running on two servers behind an AWS load balancer. To share the session information I'm running Elasticache Redis server. I'm setting my php session store info as such: ini_set('session.save_handler',…
Rudiger
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is it possible to limit inbound/ingress access to a load balancer to a source security group?

I have a set of services in ECS set up as Tasks hooked into Services that each have their own TargetGroup inside an Application Load Balancer (ALB). The Tasks needs to be able to connect to each other, for which they would need ingress access to the…
nauman hafiz
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How to map both ports 80 and 443 from an ELB to the same ECS container?

I'm building a CloudFormation stack. I have a web app in an ECS container which has PortMappings for ContainerPorts 9000 and 9002, mapped to HostPorts 80 and 443, and an application load balancer (AWS::ElasticLoadBalancingV2::LoadBalancer) with…
Dave Schweisguth
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Session problems hosting MediaWiki on AWS/EC2 in a load balanced environment

I have a MediaWiki application installed on a single AWS EC2 server with its own RDS Database server, which works well. For load balancing purposes, I installed another EC2 server with a load balancer to handle additional web server traffic. I…
user1811107
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WSO2 API Manager on AWS (Port Forwarding)

I have installed WSO2 API Manager on an EC2 server. It is working just fine but I would like to make is available through nice url (using port 443 and not 9443). So, instead of: https://example.com:9443/store (API Manager) https://example.com:8243…
Jumpman
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Inbound/Outbound rules resetting automatically

I'm deploying a python flask app on elastic beanstalk. The configuration is as follows: VPC ID: vpc-XXX Associate Public IP Address: false Instance subnets: subnet-X1 ELB subnets: subnet-X1 ELB visibility: internal After deploying the app works for…
Abhishek Thakur
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IIS Servers interrupted - thousands of http 460 responses - what could cause this and how to prevent

On Wednesday we had a period of disruted service on the webserver side of things. We generally deal with 2,000-10,000 users connected to our site and on Wednesday at around 15:35 we received 30,000+ connections (within 5 minutes) which were all to…
Liam Wheldon
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How to make security groups between load balancer and ec2

I have recently added a ALB for 2 instances in EC2. I want to make the ALB and EC2 instances to be private so I added the security group for each services. What I did is that I added the IP Addresses in HTTPS of the EC2 instances in the ALB sg. vice…
Richard Vergis
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AWS Route traffic to two load balancer simultaneously

I have a requirements to record all incoming and outgoing traffic to my application loadbalancer. I have a tool from F5 (install in EC2) to receive the traffic and process and perform actions (So I can setup ELB+ASG for this). However I want the…
KartBas
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504 Gateway timeout for ELB

I have AWS Elastic load balancer which has two healthy instances. If I make a POST request, it gets accepted. But consequent requests throw 504 gateway timeout error. After 5-10 minutes, it accepts 2-4 requests, and then start throwing 504 error. I…
lucifer
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Load balancer /target group relationship query

I cannot seem to find anywhere in the AWS load balancer console a field which tells me which target group is associated with the particular load balancer.I think I remember which one I configured, but I just want to confirm that the correct target…
Joe Sadaka
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How do load balancers route requests to application servers?

I am new to AWS and trying to understand how load balancers route request to real servers. I have two questions: Question 1: Suppose I have a web application that runs on 198.1.1.1:80. Users use www.example.com to make a request to my application.…
Neha
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client request body is buffered to a temporary file

I am using nginx as a load balancer I keep seeing the messages above. I keep uping the client_body_buffer_size, proxy_buffer_size and proxy_buffers but it doesn't seem to make a difference. What could be happening here?
Nidhi Sen
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AWS - Does Elastic Load Balancing actually prevent LOAD BALANCER failover?

I've taken this straight from some AWS documentation: "As traffic to your application changes over time, Elastic Load Balancing scales your load balancer and updates the DNS entry. Note that the DNS entry also specifies the time-to-live (TTL) as 60…
TyRyDurden
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