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+---
+title: 验证集群运行状态
+summary: 介绍如何验证集群运行状态。
+category: how-to
+---
+
+# 验证集群运行状态
+
+本文档介绍如何通过 TiDB Dashboard 和 Grafana 检查集群状态，以及登录数据库执行简单 DML、DDL 操作和查询 SQL 语句。
+
+## 通过 TiDB Dashboard 和 Grafana 检查集群状态
+
+本节介绍如何通过 TiDB Dashboard 和 Grafana 检查集群状态。
+
+### 查看 TiDB Dashboard 检查 TiDB 集群状态
+
+1. 通过 `{pd-ip}:{pd-port}/dashboard` 登录 TiDB Dashboard，登录用户和口令为 TiDB 数据库 `root` 用户和口令。如果你修改过数据库的 `root` 密码，则以修改后的密码为准，默认密码为空。
+
+    ![TiDB-Dashboard](/media/tiup/tidb-dashboard.png)
+
+2. 主页面显示 TiDB 集群中节点信息
+
+    ![TiDB-Dashboard-status](/media/tiup/tidb-dashboard-status.png)
+
+### 查看 Grafana 监控 Overview 页面检查 TiDB 集群状态
+
+- 通过 `{Grafana-ip}:3000` 登录 Grafana 监控，默认用户名及密码为 `admin`/`admin`。
+
+    ![Grafana-login](/media/tiup/grafana-login.png)
+
+- 点击 **Overview** 监控页面检查 TiDB 端口和负载监控信息。
+
+    ![Grafana-overview](/media/tiup/grafana-overview.png)
+
+## 登录数据库执行简单 DML/DDL 操作和查询 SQL 语句
+
+> **注意：**
+>
+> 登录数据库前，你需要安装 MySQL 客户端。
+
+执行如下命令登录数据库：
+
+{{< copyable "shell-regular" >}}
+
+```shell
+mysql -u root -h 10.0.1.4 -P 4000
+```
+
+### 数据库操作
+
++ 登录成功
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    Welcome to the MariaDB monitor.  Commands end with ; or \g.
+    Your MySQL connection id is 1
+    Server version: 5.7.25-TiDB-v4.0.0-beta-446-g5268094af TiDB Server (Apache License 2.0), MySQL 5.7 compatible
+
+    Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
+
+    Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
+    ```
+
++ 检查 TiDB 版本
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    select tidb_version()\G
+    ```
+
+    预期结果输出：
+
+    ```sql
+    *************************** 1. row ***************************
+    tidb_version(): Release Version: v4.0.0-beta-446-g5268094af
+    Git Commit Hash: 5268094afe05c7efef0d91d2deeec428cc85abe6
+    Git Branch: master
+    UTC Build Time: 2020-03-17 02:22:07
+    GoVersion: go1.13
+    Race Enabled: false
+    TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
+    Check Table Before Drop: false
+    1 row in set (0.00 sec)
+    MySQL [tidb]> create database pingcap;
+    Query OK, 0 rows affected (0.10 sec)
+    ```
+
++ 创建 PingCAP database
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    create database pingcap;
+    ```
+
+    ```sql
+    Query OK, 0 rows affected (0.10 sec)
+    ```
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    use pingcap;
+    ```
+
+    预期输出
+
+    ```sql
+    Database changed
+    ```
+
++ 创建 `tab_tidb` 表
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    CREATE TABLE `tab_tidb` (
+    `id` int(11) NOT NULL AUTO_INCREMENT,
+    `name` varchar(20) NOT NULL DEFAULT '',
+    `age` int(11) NOT NULL DEFAULT 0,
+    `version` varchar(20) NOT NULL DEFAULT '',
+    PRIMARY KEY (`id`),
+    KEY `idx_age` (`age`));
+    ```
+
+    预期输出
+
+    ```sql
+    Query OK, 0 rows affected (0.11 sec)
+    ```
+
++ 插入数据
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    insert into `tab_tidb` values (1,'TiDB',5,'TiDB-v4.0.0');
+    ```
+
+    预期输出
+
+    ```sql
+    Query OK, 1 row affected (0.03 sec)
+    ```
+
++ 查看 `tab_tidb` 结果
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    select * from tab_tidb;
+    ```
+
+    预期输出
+
+    ```sql
+    +----+------+-----+-------------+
+    | id | name | age | version     |
+    +----+------+-----+-------------+
+    |  1 | TiDB |   5 | TiDB-v4.0.0 |
+    +----+------+-----+-------------+
+    1 row in set (0.00 sec)
+    ```
+
++ 查看 TiKV store 状态、`store_id`、存储情况以及启动时间
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    select STORE_ID,ADDRESS,STORE_STATE,STORE_STATE_NAME,CAPACITY,AVAILABLE,UPTIME from INFORMATION_SCHEMA.TIKV_STORE_STATUS;
+    ```
+
+    预期输出
+
+    ```sql
+    +----------+--------------------+-------------+------------------+----------+-----------+--------------------+
+    | STORE_ID | ADDRESS            | STORE_STATE | STORE_STATE_NAME | CAPACITY | AVAILABLE | UPTIME             |
+    +----------+--------------------+-------------+------------------+----------+-----------+--------------------+
+    |        1 | 10.0.1.1:20160 |           0 | Up               | 49.98GiB | 46.3GiB   | 5h21m52.474864026s |
+    |        4 | 10.0.1.2:20160 |           0 | Up               | 49.98GiB | 46.32GiB  | 5h21m52.522669177s |
+    |        5 | 10.0.1.3:20160 |           0 | Up               | 49.98GiB | 45.44GiB  | 5h21m52.713660541s |
+    +----------+--------------------+-------------+------------------+----------+-----------+--------------------+
+    3 rows in set (0.00 sec)
+    ```
+
++ 退出
+
+    {{< copyable "sql" >}}
+
+    ```sql
+    exit
+    ```
+
+    预期输出
+
+    ```sql
+    Bye
+    ```