How do I troubleshoot and fix failing health checks for Application Load Balancers?

Skip directly to the demo: 0:24

Raaga shows you how to make a video.

0:00 Introduction
0:24 Additional information
0:55 Checking the health of your targets
1:32 Troubleshooting the 'Target.ResponseCodeMismatch' error
2:49 Troubleshooting the 'Target.Timeout - Request timed out' error
5:23 Troubleshooting the 'Target.FailedHealthhecks' error
6:18 Additional health check reason codes
7:20 Closing

Subscribe:

ABOUT AWS
Amazon Web Services (AWS) is the world’s most comprehensive and broadly adopted cloud platform, offering over 200 fully featured services from data centers globally. Millions of customers — including the fastest-growing startups, largest enterprises, and leading government agencies — are using AWS to lower costs, become more agile, and innovate faster.

#AWS #AmazonWebServices #CloudComputing

[CruiseTT]

3 hours looking at network issues and this video resolved in 2 minutes. Check your protocol version people.

[jinil-iqness]

OMG! Such a useful video, I have been trying to figure out the unhealthy status of my target group for the last 2 weeks. It was due to missing outbound rule in security group! Thanks a lot!

[RABWA]

thanks a lot the outbound traffic from ALB was really important and happened with me many times, thanks again

[vahdetvural]

Thanks alot, it is a very subtle settings which you explained there and helped me out

[sais-lmgz]

Hi this is venkat i am facing a issue in ingress. i taged public subnets as properly with following as aws documents. i got again issue like this : FailedBuildModel an hour ingress Failed build model due to couldn't auto-discover subnets: UnauthorizedOperation: You are not authorized to perform this operation. status code: 403, request id: please suggest some proper documents and help out for this error.

[bdiamond]

so when she runs the curl command, where did she get that ip address? is that the public ip address of her instance? if I'm using elastic beanstalk would I use the domain given to run my tests? because when I check my path just by visiting the website that gets served, I get a 200 code but my healthchecks at the same path return 400.

[kishorkumar]

Is there any tools like AWS Troubleshooting Assistant

[truonghung]

can i initialize healthcheck for ALB in route53

[DouglasG]

It's not helpful cause what happend if I have fargate task running and in the target group healtcheck I don't know the Health Status Detail?, you must show different cases and how to fix it

[AthelstanEngland]

Before releasing these videos you need to get a native English speaker to check them. No problem with the content, grammar or syntax but the pronunciation of many words makes this very hard to understand. For something released by an Amazon US office this is unacceptable.