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Support changing cacheVolume of cn and dn after mo is deployed #1170

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Nov 25, 2024
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Support changing cacheVolume of cn and dn after mo is deployed #1170

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a9796c6
Support changing cacheVolume of cn and dn after mo is deployed
yangj1211 Nov 25, 2024
05f65f7
fix
yangj1211 Nov 25, 2024
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39 changes: 39 additions & 0 deletions docs/MatrixOne/Deploy/deploy-Matrixone-cluster/deploy-MatrixOne-cluster-with-k8.md
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Original file line number Diff line number Diff line change
Expand Up @@ -499,6 +499,45 @@ NS="mo"
kubectl get pod -n "${NS}" -owide # 等待状态为 Running
```

### 动态扩容

Operator 支持 TN、CN 的 cacheVolume 配置动态扩容，不支持缩容操作，扩容过程前后，CN、TN pod 无需重启。具体步骤如下：

1. 确保 StorageClass 支持卷扩展功能

```bash
#获取 storageclass 信息
>kubectl get storageclass ${SC_NAME} -oyaml #SC_NAME 是 mo 集群使用的 pvc 的 sc 类型
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可以提示一下，用这个命令可以查看STORAGE_CLASS的名称
[root@VM-0-122-tencentos ~]# kubectl get pvc -n ${MO_NS}
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
mo-data-mo-customer-test-cnset1-cn-rhv55 Bound pvc-5b8ed11a-bd16-4003-9d2e-0b17de76e4b9 100Gi RWO cbs-hssd 3h10m
mo-data-mo-customer-test-cnset1-cn-sddmf Bound pvc-804f64c4-c167-45b4-b82c-7af966a36971 100Gi RWO cbs-hssd 3h10m
mo-data-mo-customer-test-dn-0 Bound pvc-86d35491-b18c-4ad6-a685-95da970d211c 50Gi RWO cbs-hssd 3h10m
mo-data-mo-customer-test-log-0 Bound pvc-b6888a78-c946-498c-935e-cd1ae333c11a 100Gi RWO cbs-hssd 3h11m
mo-data-mo-customer-test-log-1 Bound pvc-fad96b55-b55e-4768-a80b-1d8e6168a2db 100Gi RWO cbs-hssd 3h11m
mo-data-mo-customer-test-log-2 Bound pvc-12416574-e763-4124-bebf-033e69bd2838 100Gi RWO cbs-hssd 3h11m


#查看名为 cbs-hssd 的 StorageClass 对象的 YAML 配置，确保 StorageClass 支持卷扩展功能
>kubectl get storageclass cbs-hssd -oyaml | grep allowVolumeExpansion
allowVolumeExpansion: true
```

2. 进入集群配置编辑模式：

```bash
kubectl edit mo -n ${MO_NS} ${MO_NAME} # 其中 MO_NS 为部署 MO 集群的命名空间，MO_NAME 为 MO 集群的名称；例如 MO_NS=matrixone; MO_NAME=mo_cluster
```

3. 按需修改 tn 和 cn 的 cacheVolume 的 size 大小。

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视乎修改的对象：
1、如果为CN group，则修改spec.cnGroups[0].cacheVolume（或spec.cnGroups[1].cacheVolume，其中[n]中的n为CN Group的数组下标）；
2、如果为CN，则修改spec.tp.cacheVolume
3、如果为TN，则修改spec.tn.cacheVolume（或spec.dn.cacheVolume）

```bash
- cacheVolume:
size: 900Gi
```

然后保存并退出：按 esq 键，和：wq
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是英文的:


4. 查看扩容结果

```bash

>kubectl get pvc -n ${MO_NS}

>kubectl get pv
```

## 连接 MatrixOne 集群

为了连接 MatrixOne 集群，您需要将对应服务的端口映射到 MatrixOne 节点上。以下是使用 `kubectl port-forward` 连接 MatrixOne 集群的指导：
Expand Down
39 changes: 39 additions & 0 deletions ...atrixOne/Deploy/deploy-Matrixone-cluster/deploy-MatrixOne-cluster-without-k8.md
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Original file line number Diff line number Diff line change
Expand Up @@ -688,6 +688,45 @@ __Note:__ 本章节均是在 master0 节点操作。
mo-tp-cn-0 1/1 Running 0 50s
```

### 动态扩容

Operator 支持 TN、CN 的 cacheVolume 配置动态扩容，不支持缩容操作，扩容过程前后，CN、TN pod 无需重启。具体步骤如下：

1. 确保 StorageClass 支持卷扩展功能

```bash
#获取 storageclass 信息
>kubectl get storageclass ${SC_NAME} -oyaml #SC_NAME 是 mo 集群使用的 pvc 的 sc 类型

#查看名为 cbs-hssd 的 StorageClass 对象的 YAML 配置，确保 StorageClass 支持卷扩展功能
>kubectl get storageclass cbs-hssd -oyaml | grep allowVolumeExpansion
allowVolumeExpansion: true
```

2. 进入集群配置编辑模式：

```bash
kubectl edit mo -n ${MO_NS} ${MO_NAME} # 其中 MO_NS 为部署 MO 集群的命名空间，MO_NAME 为 MO 集群的名称；例如 MO_NS=matrixone; MO_NAME=mo_cluster
```

3. 按需修改 tn 和 cn 的 cacheVolume 的 size 大小。

```bash
- cacheVolume:
size: 900Gi
```

然后保存并退出：按 esq 键，和：wq

4. 查看扩容结果
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提示注意CAPACITY这个输出


```bash

>kubectl get pvc -n ${MO_NS}

>kubectl get pv
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kubectl get pv | grep ${NS}

```

## 6. 连接 MatrixOne 集群

为了连接 MatrixOne 集群，您需要将对应服务的端口映射到 MatrixOne 节点上。以下是使用 `kubectl port-forward` 连接 MatrixOne 集群的指导：
Expand Down
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