# Scaling ELK stack
**URL:** https://discuss.elastic.co/t/scaling-elk-stack/101416
**Category:** Logstash
**Created:** [September 22, 2017, 5:02am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416 "2017-09-22T05:02:36Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@manthan\_patel](https://discuss.elastic.co/u/manthan_patel)
#### Post date: [September 22, 2017, 5:02am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416/1 "2017-09-22T05:02:36Z")
Hi,
I have ELK stack on AWS. It has capacity of around 5000 UDP msg/sec.
I want to scale it up to capacity of 20,000 msg/sec. What would be the recommended architecture for ELK stack.
Will it help If I keep N number of small instance installed logstash on all instance behind load balancer and keep Elasticsarch cluster on all instances or I keep bigger single instance.
And what option is better for future upgrade. ?
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [September 22, 2017, 5:06am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416/2 "2017-09-22T05:06:49Z")
FYI we’ve renamed ELK to the Elastic Stack, otherwise Beats feels left out 😉
If you are running Elasticsearch and Logstash together, splitting them out is definitely the first step. Using a load balancer also helps.
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### Author:  [@manthan\_patel](https://discuss.elastic.co/u/manthan_patel)
#### Post date: [September 22, 2017, 5:12am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416/3 "2017-09-22T05:12:19Z")
Thank you :),
Will definitely keep Logstash and Elasticsearch on separate machines .
What do you suggest about architecture. I currently run on 16 GB of memory, 4 core with capacity of around 4500 to 5000 msg/sec.
Do we just upgrade machine or we go for multiple smaller instances ?
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [September 22, 2017, 5:27am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416/4 "2017-09-22T05:27:30Z")
You shouldn't need that much memory for Logstash, but it is CPU heavy. Having a few smaller ones is likely going to be more effective.
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### Author:  [@manthan\_patel](https://discuss.elastic.co/u/manthan_patel)
#### Post date: [September 22, 2017, 6:33am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416/5 "2017-09-22T06:33:12Z")
Thank you for help 🙂
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 20, 2017, 6:33am UTC](https://discuss.elastic.co/t/scaling-elk-stack/101416/6 "2017-10-20T06:33:19Z")
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