一、组件介绍

vmstorage 是 VictoriaMetrics 时序数据库系统中的核心存储组件，负责时间序列数据的持久化存储和查询服务。

二、应用场景

当集群规模日益壮大，vmstorage存储性能受限，导致CPU升高，可能会引发监控指标采集异常，从而引起误告。

三、扩容步骤

3.1 备份

cd /home/yaml/bak
kubectl get vmcluster -n cprom-system cprom-vmcluster -o yaml >cprom-vmcluster _20250324.yaml
kubectl get sts -n cprom-system vmstorage-cprom-vmcluster -o yaml >vmstorage-cprom-vmcluster_20250324.yaml
kubectl get sts -n cprom-system vmselect-cprom-vmcluster -o yaml >vmselect-cprom-vmcluster_20250324.yaml
kubectl get deploy -n cprom-system vminsert-cprom-vmcluster -o yaml >vminsert-cprom-vmcluster_20250324.yaml

3.2 修改vmstorage副本数量

kubectl edit vmcluster -n cprom-system cprom-vmcluster
vmstorage:
  replicaCount: 6
  tolerations:
  - effect: NoSchedule
    key: node-role.kubernetes.io/master
    operator: Exists

3.3 修改vminsert的启动参数

kubectl edit deploy -n cprom-system vminsert-cprom-vmcluster
sepc：
  containers:
  -args:
    - -replicationFactor=3
    - -storageNode=vmstorage-cprom-vmcluster-0.vmstorage-cprom-vmcluster.cprom-system:8400,vmstorage-cprom-vmcluster-1.vmstorage-cprom-vmcluster.cprom-system:8400,vmstorage-cprom-vmcluster-2.vmstorage-cprom-vmcluster.cprom-system:8400,vmstorage-cprom-vmcluster-3.vmstorage-cprom-vmcluster.cprom-system:8400,vmstorage-cprom-vmcluster-4.vmstorage-cprom-vmcluster.cprom-system:8400,vmstorage-cprom-vmcluster-5.vmstorage-cprom-vmcluster.cprom-system:8400

3.4 修改vmselect的启动参数

kubectl edit sts -n cprom-system vmselect-cprom-vmcluster
sepc：
  containers:
  -args:
    - -storageNode=vmstorage-cprom-vmcluster-0.vmstorage-cprom-vmcluster.cprom-system:8401,vmstorage-cprom-vmcluster-1.vmstorage-cprom-vmcluster.cprom-system:8401,vmstorage-cprom-vmcluster-2.vmstorage-cprom-vmcluster.cprom-system:8401,vmstorage-cprom-vmcluster-3.vmstorage-cprom-vmcluster.cprom-system:8401,vmstorage-cprom-vmcluster-4.vmstorage-cprom-vmcluster.cprom-system:8401,vmstorage-cprom-vmcluster-5.vmstorage-cprom-vmcluster.cprom-system:8401