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Hi Experts;

  • When we check Middle Tier Server performances using GRAFANA dashboards to check POD wise CPU & Memory utilization , below were observed

 

Dashboard used : 

  • Even under normal conditions, some PODs have  ‘MEMORY REQUESTS ~ MEMORY LIMITS’  as in above image.

QUESTION :-

  • Does that mean these pods are fully utilized umemory] even under normal conditions ?
  • Here MEMORY USAGE is always higher than MEMORY REQUESTS & MEMORY LIMITS.Is that a cumulative value or else?
  • Should we mention that as a concern to consider when we give recommendations/ suggestions based on these details/behavior.

 

BR!

Dilshan

Hi @Dilshan Aththanayake,

Memory Request - defined value which the pod reserve for him self

Memory Limit - max value of memory which can be used.

To your Questions:

  1. Memory Usage is the value what the pod is really using;
  2. Strange that in your example Memory Usage > Memory Limit. Theoreticaly should not be allowed to be used more as the limit. I would say, this is a indication to start more ifsapp-odata pods. 
  3. Yes

More explanation about Memory Requests & Limits:

Resource Management for Pods and Containers | Kubernetes

BR

Theo

 

 

In case that some POD memory usage is closing the memory limit value, should one consider to start a new POD replica or add more resources for the POD to increase the limit? 

I would start a new pod replica. It’s easier and you remain in IFS standard configuration for the pods.

Theo

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