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Is kubernetes 20$ adapted to a system with 1000 concurrent users ?

Posted May 30, 2020 1.1k views
KubernetesDigitalOcean Managed Kubernetes

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

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cheikhseck980
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cheikhseck980

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Nodes never seem to finish provisioning from the web UI? Question Question
Using floating IP for a one node kubernetes cluster and auto updates Question Question
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  • conradwt May 30, 2020
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    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
nabsul May 30, 2020

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.
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jkwiatkoski June 3, 2020

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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