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I have a kubernetes cluster with 4 nodes(1 master & 3 worker). I have already deployed services like cassandra, redis, zookeeper and kafka. But the problem is every once in a while anyone node gets into "Not Ready" state.
I want to check the load on Kubernetes and how can I check how much more to deploy and what is causing this. When I did kubectl get nodes I am getting this result but I am confused as CPU requests is more than the CPU limit and also Memory requests is also more than the Memory limit. But in percentage, everything is less than 2%.

Name  CPU requests(cores)  CPU limits(cores)  Memory requests(bytes)  Memory limits(bytes) Age 

worker1  1.4(2.92%)  0.9(1.88%)  2.049 Gi(1.63%)  1.049 Gi(0.83%)  3 days

worker2  1.3(2.71%)  0.8(1.67%)  2.049 Gi(1.63%)  1.049 Gi(0.83%)  a month

worker3  1.4(2.92%)  0.9(1.88%)  2.049 Gi(1.63%)  1.049 Gi(0.83%)  a month

master   0.85(1.77%)  0.1(0.21%)  190 Mi(0.15%)  390 Mi(0.30%)    a month

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