mysql> alter user 'root'@'localhost' identified with mysql_native_password by 'xxxx';Query OK, 0 rows affected (0.00 sec)mysql> flush privileges;Query OK, 0 rows affected (0.01 sec)```### 2. 删除默认数据库和用户将测试创建的用户 test 删除,如下:```bashmysql> delete from user where user='test';Query OK, 0 rows affected (0.00 sec)```删除空密码的 root,如下:```bashmysql> delete from us...
实时抓取 MySQL Server 端的请求,并格式化输出。# 工具安装### 安装必要的依赖```sqlyum install gcc gcc-c++ cmake libpcap-devel glib2-devel libnet-devel -y```### 安装命令```sqlgit clone http... mydumper || mysql || performance_schema || rudonx |+-----------------------+7 rows in set (0.04 sec)mysql> use rudonxReading table information...
实时抓取 MySQL Server 端的请求,并格式化输出。# 工具安装### 安装必要的依赖```sqlyum install gcc gcc-c++ cmake libpcap-devel glib2-devel libnet-devel -y```### 安装命令```sqlgit clone https://... mydumper || mysql || performance_schema || rudonx |+-----------------------+7 rows in set (0.04 sec)mysql> use rudonxReading table information...
# 问题描述MySQL 出现如下报错:我该如何去排查并解决此问题ERROR 1461 (42000): Can't create more than max_prepared_stmt_count statements (current value: 16382)# 问题分析使用sysbench进行压力测试:... Com_stmt_send_long_data | 0 || Com_stmt_reprepare | 0 |+-------------------------+-------+7 rows in set (0.002 sec)```会出现三个相关的状态:* Com_stmt_close prepare语句关闭的次...
# 问题描述MySQL 出现如下报错:我该如何去排查并解决此问题ERROR 1461 (42000): Can't create more than max_prepared_stmt_count statements (current value: 16382)# 问题分析使用sysbench进行压力测试:```... Com_stmt_send_long_data | 0 || Com_stmt_reprepare | 0 |+-------------------------+-------+7 rows in set (0.002 sec)````会出现三个相关的状态:* Com_stmt_close prepare语句关闭的次...
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# 问题描述如何正确配置 MySQL 的 slow query log?# 常见参数说明## 1.min_examined_row_limit测试配置文件如下````undefined###slow_loglong_query_time=1 //条件1:时间需要大于1sslow_query_log=1... ````undefined# Time: 2021-10-29T02:10:58.593293Z# User@Host: root[root] @ localhost [127.0.0.1] Id: 2# Query_time: 1.439743 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0SET timestamp=...
调用 DescribeSlowLogs 接口查询慢日志信息。 请求类型同步请求。 请求参数参数 类型 是否必选 示例值 描述 RegionId string 是 cn-beijing 地域 ID。 InstanceId string 是 mysql-71dffd****** 实例 ID。 说明... DESC:表示降序。 OrderBy String 否 Timestamp 返回结果的排序方法,取值如下: Timestamp:按照查询开始时间排序。默认值。 QueryTime:按照查询时间排序。 LockTime:按照锁的等待时间排序。 RowsExamined...
1. 创建相关目录2. 初始化 MySQL3. 启动 MySQL4. 如果有配置主从的需求,还需要额外的命令整个配置过程如果通过几条命令完成,会大大减少我们的工作量。这里介绍 dbdeployer 工具,它有如下优点:1. 工具安装方便... #220314 6:07:14 server id 1 end_log_pos 406 CRC32 0xc29c436a Write_rows: table id 88 flags: STMT_END_FBINLOG 'ktsuYhMBAAAANgAAAG4BAAAAAFgAAAAAAAEABnJ1ZG9ueAAGcnVkb254AAEDAAEBAQDQWGqdktsuYh4BA...
1. 创建相关目录2. 初始化 MySQL3. 启动 MySQL4. 如果有配置主从的需求,还需要额外的命令整个配置过程如果通过几条命令完成,会大大减少我们的工作量。这里介绍 dbdeployer 工具,它有如下优点:1. 工具安装方... #220314 6:07:14 server id 1 end_log_pos 406 CRC32 0xc29c436a Write_rows: table id 88 flags: STMT_END_FBINLOG 'ktsuYhMBAAAANgAAAG4BAAAAAFgAAAAAAAEABnJ1ZG9ueAAGcnVkb254AAEDAAEBAQDQWGqdktsuYh4BA...
# 问题描述如何正确配置 MySQL 的 slow query log?# 常见参数说明## 1.min_examined_row_limit测试配置文件如下```###slow_loglong_query_time=1 //条件1:时间需要大于1sslow_query_log=1slow_... d_row_limit参数后,slow.log中会有日志记录如下```# Time: 2021-10-29T02:10:58.593293Z# User@Host: root[root] @ localhost [127.0.0.1] Id: 2# Query_time: 1.439743 Lock_time: 0.000000 Rows_sent:...
**MySQL深分页优化**![picture.image](https://p6-volc-community-sign.byteimg.com/tos-cn-i-tlddhu82om/1499ce77b4ea4b91b806bfab2774e01f~tplv-tlddhu82om-image.image?=&rk3s=8031ce6d&x-expires=17148... (https://p6-volc-community-sign.byteimg.com/tos-cn-i-tlddhu82om/27f5cea2b1144d9189f9287c82bc1e80~tplv-tlddhu82om-image.image?=&rk3s=8031ce6d&x-expires=1714839642&x-signature=PjeLnRCsNF0frefjOg8sZgjS...
QueryTimeStats QueryTimeStatsObject json { "Average": 3.5001745, "Max": 4.00016, "Min": 3.000189, "Total": 7.000349} 锁耗时的统计结果,以秒为单位。 RowsExaminedRatio Integer 0 扫描总行数占比。... Content String Storing MySQL user name or password information in the master info repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection ...