Kubernetes吊舱中MongoDb RAM的使用-不知道节点限制

在Google容器引擎Kubernetes中，我有3个节点，每个节点都有3.75 GB的ram

现在，我还有一个从单个端点调用的api。该端点在mongodb中进行如下批插入

IMongoCollection<T> stageCollection = Database.GetCollection<T>(StageName);

foreach (var batch in entites.Batch(1000))
{
  await stageCollection.InsertManyAsync(batch);
}

更新

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同时，我还配置了pod反亲和力，以确保在运行mongo db的节点上，ram中没有任何干扰。但我们仍然得到了oom场景–

与此同时，我还配置了pod反亲和力，以确保在运行mongo db的节点上，ram中没有任何干扰。但我们还是得到了机会

---
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: fast
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-ssd
---
apiVersion: v1
kind: Service
metadata:
  name: mongo
  labels:
    name: mongo
spec:
  ports:
  - port: 27017
    targetPort: 27017
  clusterIP: None
  selector:
    role: mongo
---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: mongo
spec:
  serviceName: "mongo"
  replicas: 1
  template:
    metadata:
      labels:
        role: mongo
        environment: test
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: mongo
          image: mongo:3.6
          command:
            - mongod
            - "--replSet"
            - rs0
            - "--bind_ip"
            - "0.0.0.0"
            - "--noprealloc"
            - "--wiredTigerCacheSizeGB"
            - "1.5"
          resources:
            limits:
              memory: "2Gi"
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: mongo-persistent-storage
              mountPath: /data/db
        - name: mongo-sidecar
          image: cvallance/mongo-k8s-sidecar
          env:
            - name: MONGO_SIDECAR_POD_LABELS
              value: "role=mongo,environment=test"
  volumeClaimTemplates:
  - metadata:
      name: mongo-persistent-storage
      annotations:
        volume.beta.kubernetes.io/storage-class: "fast"
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 32Gi