en, zh: update documentation about PodRestarter (#724)

* Update documentation about PodRestarter Signed-off-by: Lonng <[email protected]> * address comment Signed-off-by: Lonng <[email protected]>
pingcap · Oct 19, 2020 · e988e30 · e988e30
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diff --git a/en/restart-a-tidb-cluster.md b/en/restart-a-tidb-cluster.md
@@ -36,23 +36,23 @@ If you find that the memory leak occurs in a Pod during use, you need to restart
           storage: "1Gi"
         config: {}
         annotations:
-          tidb.pingcap.com/restartedAt: "202004201200"
+          tidb.pingcap.com/restartedAt: 2020-04-20T12:00
       tikv:
         baseImage: pingcap/tikv
         replicas: 3
         requests:
           storage: "1Gi"
         config: {}
         annotations:
-          tidb.pingcap.com/restartedAt: "202004201200"
+          tidb.pingcap.com/restartedAt: 2020-04-20T12:00
       tidb:
         baseImage: pingcap/tidb
         replicas: 2
         service:
           type: ClusterIP
         config: {}
         annotations:
-          tidb.pingcap.com/restartedAt: "202004201200"
+          tidb.pingcap.com/restartedAt: 2020-04-20T12:00
     ```
 
 2. Apply the update:
@@ -62,36 +62,3 @@ If you find that the memory leak occurs in a Pod during use, you need to restart
     ``` shell
     kubectl apply -f ${cluster_name} -n ${namespace}
     ```
-
-## Gracefully restart a single Pod of the TiDB component
-
-This section describes how to gracefully restart a single Pod of the component in a TiDB cluster.
-
-### Enable the configurations
-
-To activate the graceful logoff feature, you need to enable some related configurations in TiDB Operator. These configurations are disabled by default. Take the following steps to manually turn them on.
-
-1. Edit the `values.yaml` file.
-
-    Enable the `Operator Webhook` feature:
-
-    ```yaml
-    admissionWebhook:
-      create: true
-    ```
-
-    For more information about `Operator Webhook`, see [Enable Admission Controller in TiDB Operator](enable-admission-webhook.md).
-
-2. Install or update TiDB Operator.
-
-    To install or update TiDB Operator, see [Deploy TiDB Operator in Kubernetes](deploy-tidb-operator.md).
-
-### Use annotate to mark the target Pod
-
-You can use `kubectl annotate` to mark the target Pod component of the TiDB cluster. After marking, the TiDB Operator automatically performs graceful logoff of the Pod and restarts the target Pod. To mark the target Pod, run the following command:
-
-{{< copyable "shell-regular" >}}
-
-```sh
-kubectl annotate ${pod_name} -n ${namespace} tidb.pingcap.com/pod-defer-deleting=true
-```
diff --git a/zh/restart-a-tidb-cluster.md b/zh/restart-a-tidb-cluster.md
@@ -32,23 +32,23 @@ aliases: ['/docs-cn/tidb-in-kubernetes/dev/restart-a-tidb-cluster/']
           storage: "1Gi"
         config: {}
         annotations:
-          tidb.pingcap.com/restartedAt: "202004201200"
+          tidb.pingcap.com/restartedAt: 2020-04-20T12:00
       tikv:
         baseImage: pingcap/tikv
         replicas: 3
         requests:
           storage: "1Gi"
         config: {}
         annotations:
-          tidb.pingcap.com/restartedAt: "202004201200"
+          tidb.pingcap.com/restartedAt: 2020-04-20T12:00
       tidb:
         baseImage: pingcap/tidb
         replicas: 2
         service:
           type: ClusterIP
         config: {}
         annotations:
-          tidb.pingcap.com/restartedAt: "202004201200"
+          tidb.pingcap.com/restartedAt: 2020-04-20T12:00
     ```
 
 2. 应用更新
@@ -58,34 +58,3 @@ aliases: ['/docs-cn/tidb-in-kubernetes/dev/restart-a-tidb-cluster/']
     ``` shell
     kubectl apply -f ${cluster_name} -n ${namespace}
     ```
-
-## 优雅重启 TiDB 集群组件的单个 Pod
-
-### 开启相关设置
-
-开启优雅下线功能，需要打开 Webhook 相关设置。默认情况下 Webhook 相关配置是关闭的，你需要手动开启:
-
-1. 修改 Operator 的 `values.yaml`
-
-    开启 Operator Webhook 特性:
-
-    ```yaml
-    admissionWebhook:
-      create: true
-    ```
-
-    关于 Operator Webhook 详情，请参考[开启 TiDB Operator 准入控制器](enable-admission-webhook.md)
-
-2. 安装/更新 TiDB Operator
-
-    修改完 `values.yaml` 文件中的上述配置项以后，进行 TiDB Operator 部署或者更新。安装与更新 TiDB Operator 请参考[在 Kubernetes 上部署 TiDB Operator](deploy-tidb-operator.md)。 
-
-### 使用 annotate 标记目标 Pod 节点
-
-我们通过 `kubectl annotate` 的方式来标记目标 TiDB 集群 Pod 节点组件，当 `annotate` 标记完成以后，TiDB Operator 会自动进行 Pod 节点的优雅下线并重启。你可以通过以下方式来进行标记:
-
-{{< copyable "shell-regular" >}}
-
-```sh
-kubectl annotate ${pod_name} -n ${namespace} tidb.pingcap.com/pod-defer-deleting=true
-```