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Allocating Insufficient Resource than the Actual Usage

Allocating Insufficient Resource than the Actual Usage

In this lesson, we will explore what happens when we allocate insufficient resource than the actual usage of an application.

Allocating Insufficient Memory

Let’s take a look at a slightly modified version of the go-demo-2 definition.

cat res/go-demo-2-insuf-mem.yml

When compared with the previous definition, the difference is only in resources of the db container in the go-demo-2-db Deployment.

The output, limited to the relevant parts, is as follows.

apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: go-demo-2-db
spec:
  ...
  template:
    ...
    spec:
      containers:
      - name: db
        image: mongo:3.3
        resources:
          limits:
            memory: 10Mi
            cpu: 0.5
          requests:
            memory: 5Mi
            cpu: 0.3

The memory limit is set to 10Mi and the request ...

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