TOP AWS Interview Question| Can You Create High availability Arch in AWS | From ServerGyan

In this video, I am going to explain, mostly asked question based on AWS, How to set up HA with help of tools provided by AWS? So here is the answer for the HA in AWS with all components of AWSl.

[@vback4238]

Awesome training!!!

[@1989mrsoham]

Oh bhai sahib ek number video for this year 💐

[@ServerGyan]

Thanks Sir

[@mahadevisutar1436]

Thanks for sharing

[@mahadevisutar1436]

Please don't stop uploading videos
Many students and budding engineers find your videos helpful...
👍👍👍👍

[@swanandrajure]

You solved many of my doubts on how to implement multi tier architecture in AWS

[@ServerGyan]

Welcome dear
Happy learning

[@faizanmd8935]

thanks, Lokendra Sir for sharing knowledge. your long distance student(me) learning many things from you

[@ServerGyan]

Always welcome dear, keep learning

[@VenkeeN17]

Great video. Very well explained. Thank you.

[@ujwalagrawal9524]

Very Well Explained. Thank you Lokendra Sir.

[@ServerGyan]

Thanks for your help and support sir,

[@srohith9]

Clear explanation thanks.

[@thechangemakersgroup8964]

Obviously! Good watch.

[@KapilKumar-un7uu]

nice sir...very well explain.

[@ServerGyan]

Thank you for your support💪

[@mudardawood5334]

Excellent sir

[@ServerGyan]

Happy learning dear...

[@prasanthseepana8733]

I have couple of questions on this
1 ) In real time what type of load balancer we use and y?
2) why we are using multiple elbs ,is that necessary,and also what is caching server?
Thank you:)

[@ServerGyan]

Sure, I will explain in coming videos

[@pankajkarmakar7782]

Mostly in real production you use application ELB (path,port based) or Network ELB(IP based).

[@andrewsselvaraj]

this video provide how to design a infra for web application ..Thanks a lot

[@ServerGyan]

Thank you, happy learning

[@charanbhargav4610]

very informative

[@ServerGyan]

Thanks dear, happy learning

[@gajjalanandu9192]

Good information and nice explanation, Happy New year to valaxy Technologies

[@ServerGyan]

Thanks for your kind words.

[@gajjalanandu9192]

Hoo honestly really sorry, happy-go-ahead happy new year in advance to server Gyan

[@grizzle8911]

Good explanation but caching isn't really something you can just plug onto an ELB. Caching happens outside of the ELB either within the application (get data from cache instead of hitting the database) or at the front end (serve static assets from a CDN). You can't actually connect a redis/memcached or similar service directly between two ELB's and expect that they will cache anything.

[@ServerGyan]

Hi
Thank you for your input
That’s depends on how you design your application

[@Sri-mx7zj]

Nice Explanation, can you please make video on bastion host set up

[@ServerGyan]

Sure dear, I will explain how to setup bastion host.

[@52surender]

nice video dear but can you create a video for proxy with db write and read database(RDS) not linux machine for send the traffic

[@ServerGyan]

Sure dear, I will try to explain

[@shantanusohni3615]

Good video Sir :)

[@ServerGyan]

Thanks dear

[@sunilc8684]

Hi .,
Thanks for making this Video. Could you please explain the need to have 2 load balancer and cache as compared to one load balancer ?

[@madhurohinivadlamani2021]

The cache will store data that is repeatedly accessed so that there is no need to go till the EC2 instances/ DBs for every transaction. The first ELB balances the load sent to the cached servers while the second is to balance the load on the EC2 instances.

[@samiracle_p]

@@madhurohinivadlamani2021 won't the cached data be sent to CF?

[@ServerGyan]

We can store 2 places
CF and local cache

[@adityakushwaha3654]

Why do we have two elb on left below route 53?

[@ServerGyan]

We may have multiple micro services and multiple elb to manage traffic

[@goelashish96]

Thanks for the explanation Sir. I have couple of questions on this.
- Can you please tell instead of proxy server and DB cluster, can we use RDS with read replica in multi AZ. Not sure how we connect EC2 to RDS.
- Also, in the video, EC2 instances are in two AZs. So, do we need to configure two LC and ASG for each AZ.

[@ServerGyan]

Sure, I will explain

[@pankajkarmakar7782]

Yes you can use Read replica and multi az or can use dynamodb, aurora keeping mind the cost usage. You can use endpoint to connect Ec2 instance to RDS. One LC is required for Instances in different az.

[@srinathvk]

Thanks for HA architecture updates. Just one question. Do we really need a EIP ? Can you explain the significance of EIP?

[@ServerGyan]

We don't need in all cases but if you have network ELB then you may need. As I said in video, this is completely optional.
Thanks, please let me know if this suffice your question.

[@srinathvk]

Server Gyan make sense. thanks for your response.

[@ServerGyan]

Welcome dear, happy new year in advance from ServerGyan

[@DevopsKnowledge493]

Please do the complete video using this infrastructure

[@ServerGyan]

Okay sir, I will explain in near future.

[@sandhyaaa24]

create practical video of it