Hi, I would like to know if Kubernetes with 4GB Memory and 2vCPUs can handle 1000 concurent users

1 comment
  • Hi, I recommend using a load testing tool like Apache JMeter to determine whether or not a certain Kubernestes hardware configuration can support 1000 concurrent users. Also, this will provide some insight about your overall application architecture because all architectures may not suitable for certain types of workloads. In summary, the rule of thumb here is to always measure instead of guessing what will or will not work in production.

    Think different and code well,

    -Conrad

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2 answers

It depends the workload:

  • If you’re serving a static webpage, the $5 VPS will be sufficient.
  • If you’re streaming HD videos you’ll probably need a few more machines.

This will depend on your application and the memory usage per user. I would try with a larger node to ensure stability then use monitoring tools like Prometheus to get a better understanding of your app’s average use cases during high and low traffic times. This should very easily show you what your application demands while not putting the stability of your application at risk. If you find it falls well within the amounts located on the nodes allocatable memory table (linked below) you could consider downsizing your nodes.

https://www.digitalocean.com/docs/kubernetes/#allocatable-memory

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