Questions tagged [healthcheck]
108 questions
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How to avoid duplicate health-check for the real same server in Haproxy?
Following config file work as expect but do duplicate health-check for the real same proxy-server, how can I avoid such duplicate health-check? (I still want do health-check but not duplicate health-check)
global
external-check
defaults
…
illiterate
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1 answer
HTTP Health Check For Elastic Beanstalk App Triggers Scale / Capacity rules
I have an Elastic Beanstalk application that is running a wordpress application, and I would like some monitoring and scaling triggers for when the health check, the homepage, returns an HTTP response code within the range of 4xx and 5xx. I am aware…
robskrob
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How are load balancers, health checks, and autoscalers supposed to handle surges?
I have a service which looks like: Internet -> Load Balancer -> Instances
What seems to be happening in my service is the following scenario:
A large surge of user traffic comes in, more than the current instances can handle.
The load balancer does…
Kevin Baragona
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proxy_hcheck_module does not work using TCP method
I am using a Windows build (and it has to be Windows) of Apache 2.4.33 from https://www.apachelounge.com
I have configured it as a load balancer, and everything seems to work fine until I try adding health checks. If I use hcmethod=GET, the health…
Inverse
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1 answer
How to access apps that have been deployed in k8s on Google Cloud Platform using a Google Cloud Engine HTTP(S) Load Balancer?
Aim: to access apps that reside in a kubernetes (k8s) namespace using an HTTP(S) Load Balancer (HLB)
Methods
TCP load balancing (TLB) (layer 4)
A k8s cluster has been created on Google Cloud Platform (GCP)
A static IP was created
A TLB was created,…
030
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Using a GCP Global Load Balancer HTTP health check, is it possible to POST instead of GET?
We have configured GLB in GCP in front of a Netcool Ominibus Probe server. This is an API that accepts POST events only. When the health check on the GLB tries to connect to the probe server on port 80/443 using a GET the API returns a 501 error…
jbiggley
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1 answer
Best practice for auto-healing servers in the cloud (outside of AWS)?
We are in the process of moving from AWS where we have a highly available system setup using EC2's auto scaling feature. However, we aren't using this to change the size of the pool based on resource usage, we are simply using it to spin up new…
James Simpson
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HAProxy health check consecutive counts not resetting
We have two Redis servers behind an HAProxy server. One server is the master, which is up, and the other is the slave, which is down. If the master goes down, the sentinels elect the other server to be the master. That part is working fine. What's…
siride
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Setting up health check for EC2 instances with DataDog
I have an existing AWS infrastructure which is integrated with DataDog, which is responsible for monitoring various metrics, e.g. SQS queues, ELB, etc.
I'd like to set up a health check for some web sites and APIs. As far as I know, it's possible…
Vlad Stryapko
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1 answer
(NGINX LB + docker-compose) Stop 1 service and now only use the other one
I'm using NGINX inside docker-compose with 2 node services.
The load balancing is working. Not sure if this is how it should be, but my page load goes to ping1, then the CSS file loads from service ping2, then the next file from ping1, and... Where…
Illinois47
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1 answer
ELB Health check passes. Scaling Group Shows unhealthy. With scaling group set to the ELB check
Having an issue where our ELB health checks are showing up as healthy on the ELB page. but checking on the Scaling group instances page its showing as unhealthy.
causing the autoscaler to kill it without any need.
Despite the Box
a) being fine.…
Fusspawn
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1
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1 answer
Automated Installation Testing on Windows
I am looking for some software I can work with that will allow me to test that programs were installed and are functioning correctly. Instead of opening each program manually and see it working, I would like something similar to automated…
xadeka
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1 answer
AWS ELB health check when using nginx and TCP
I have an elasticbeanstalk environment that uses nginx as a frontend server for a node.js application.
The environment uses an elastic load balancer configured to accept connections on TCP:80/SSL:443 and forward both to the nginx instance on…
saguiar
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NAP clients are evaluated as non NAP-capable
The setup: Active Directory domain, Remote Desktop Gateway server, NPS/NAP server (all Windows Server 2008 R2) and a few Windows 7 clients.
The RDG and NPS are set up and running with all Connection Request & Network policies and everything is well,…
Arseny V.
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1 answer
HAProxy check does not check content on IIS
I am new to HAproxy and I have read the docs googled every possible phrase I could think of but I cannot get haproxy to read the content my test page returns.
Here's the setup:
Single arm config -
1x CentOS 7 haproxy 1.5.14 -
2x Windows Server…
Joe Sutton
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