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数据库日志管理.md | 248 +++++++++++++++++++++++-----------------------
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diff --git a/数据库日志管理.md b/数据库日志管理.md
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--- a/数据库日志管理.md
+++ b/数据库日志管理.md
@@ -1,124 +1,124 @@
-
数据库日志管理
-
-------
-
-## 一:日志管理
-
-
-
-### 1. 日志分类
-
-- error log(错误日志):启动,停止,关闭失败报错。rpm安装日志位置 /var/log/mysqld.log
-- 通用查询日志:所有的查询都记下来
-- bin log(二进制日志):实现备份,增量备份。只记录改变数据,除了select都记
-- relay log(中继日志):读取主服务器的binlog,在本地回放。保持一致
-- slow log(慢查询日志):指导调优,定义某一个查询语句,定义超时时间,通过日志提供调优建议给开发人员
-- DDL log: 定义语句的日志
-
-### 2. Error log
-
-```shell
-log-error=/var/log/mysqld.log
-```
-
-### 3. Binary Log
-
-产生binlog日志:修改配置文件,添加如下配置
-
-```bash
-log-bin=/var/log/mysql-bin/slave2
-server-id=2
-
-[root@mysql ~]# mkdir /var/log/mysql-bin
-[root@mysql ~]# chown mysql.mysql /var/log/mysql-bin/
-[root@mysql ~]# systemctl restart mysqld
-```
-
-注:
-
-```sql
-1. 重启mysqld 会截断旧日志产生新的日志
-2. 刷新日志会截断旧日志产生新的日志
- mysql> flush logs
-3. 删除所有binlog(禁用)
- mysql> reset master
-4. 删除部分日志
- mysql> PURGE BINARY LOGS TO 'mysql-bin.010';
- mysql> PURGE BINARY LOGS BEFORE '2016-04-02 22:46:26';
-5. 暂停binlog日志功能(仅对当前会话生效)
- mysql> SET SQL_LOG_BIN=0;
- mysql> SET SQL_LOG_BIN=1;
-```
-
-**读取binlog日志:**
-
-```bash
-mysqlbinlog mysql.000001
-```
-
-**按datetime读取:**
-
-```bash
-# mysqlbinlog mysql.000001 --start-datetime="2018-12-05 10:02:56"
-# mysqlbinlog mysql.000001 --stop-datetime="2018-12-05 11:02:54"
-# mysqlbinlog mysql.000001 --start-datetime="2018-12-05 10:02:56" --stop-datetime="2018-12-05 11:02:54"
-```
-
-**按position读取:**
-
-```bash
-# mysqlbinlog mysql.000001 --start-position=260
-# mysqlbinlog mysql.000001 --stop-position=260
-# mysqlbinlog mysql.000001 --start-position=260 --stop-position=930
-```
-
-### 4. Slow Query Log
-
-开启慢查询日志:
-
-```bash
-[root@mysql ~]# vim /etc/my.cnf
-slow_query_log=1
-slow_query_log_file=/var/log/mysql-slow/slow.log
-long_query_time=3 设置慢查询超时时间 单位是:秒
-```
-
-创建对应目录:
-
-```bash
-[root@mysql ~]# mkdir /var/log/mysql-slow
-[root@mysql ~]# chown mysql.mysql /var/log/mysql-slow/
-```
-
-重启服务:
-
-```bash
-[root@mysql ~]# systemctl restart mysqld
-```
-
-验证:
-
-```SQL
-[root@mysql ~]# mysql -uroot -p'Wdjsi@313'
-mysql> select sleep(6);
-+----------+
-| sleep(6) |
-+----------+
-| 0 |
-+----------+
-1 row in set (6.00 sec)
-
-mysql> exit
-Bye
-
-[root@mysql ~]# cat /var/log/mysql-slow/slow.log
-/usr/sbin/mysqld, Version: 5.7.30-log (MySQL Community Server (GPL)). started with:
-Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
-Time Id Command Argument
-# Time: 2025-03-11T11:20:18.734540Z
-# User@Host: root[root] @ localhost [] Id: 2
-# Query_time: 6.001048 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0
-SET timestamp=1741692018;
-select sleep(6);
-```
-
+数据库日志管理
+
+------
+
+## 一:日志管理
+
+
+
+### 1. 日志分类
+
+- error log(错误日志):启动,停止,关闭失败报错。rpm安装日志位置 /var/log/mysqld.log
+- 通用查询日志:所有的查询都记下来
+- bin log(二进制日志):实现备份,增量备份。只记录改变数据,除了select都记
+- relay log(中继日志):读取主服务器的binlog,在本地回放。保持一致
+- slow log(慢查询日志):指导调优,定义某一个查询语句,定义超时时间,通过日志提供调优建议给开发人员
+- DDL log: 定义语句的日志
+
+### 2. Error log
+
+```shell
+log-error=/var/log/mysqld.log
+```
+
+### 3. Binary Log
+
+产生binlog日志:修改配置文件,添加如下配置
+
+```bash
+log-bin=/var/log/mysql-bin/slave2
+server-id=2
+
+[root@mysql ~]# mkdir /var/log/mysql-bin
+[root@mysql ~]# chown mysql.mysql /var/log/mysql-bin/
+[root@mysql ~]# systemctl restart mysqld
+```
+
+注:
+
+```sql
+1. 重启mysqld 会截断旧日志产生新的日志
+2. 刷新日志会截断旧日志产生新的日志
+ mysql> flush logs
+3. 删除所有binlog(禁用)
+ mysql> reset master
+4. 删除部分日志
+ mysql> PURGE BINARY LOGS TO 'mysql-bin.010';
+ mysql> PURGE BINARY LOGS BEFORE '2016-04-02 22:46:26';
+5. 暂停binlog日志功能(仅对当前会话生效)
+ mysql> SET SQL_LOG_BIN=0;
+ mysql> SET SQL_LOG_BIN=1;
+```
+
+**读取binlog日志:**
+
+```bash
+mysqlbinlog mysql.000001
+```
+
+**按datetime读取:**
+
+```bash
+# mysqlbinlog mysql.000001 --start-datetime="2018-12-05 10:02:56"
+# mysqlbinlog mysql.000001 --stop-datetime="2018-12-05 11:02:54"
+# mysqlbinlog mysql.000001 --start-datetime="2018-12-05 10:02:56" --stop-datetime="2018-12-05 11:02:54"
+```
+
+**按position读取:**
+
+```bash
+# mysqlbinlog mysql.000001 --start-position=260
+# mysqlbinlog mysql.000001 --stop-position=260
+# mysqlbinlog mysql.000001 --start-position=260 --stop-position=930
+```
+
+### 4. Slow Query Log
+
+开启慢查询日志:
+
+```bash
+[root@mysql ~]# vim /etc/my.cnf
+slow_query_log=1
+slow_query_log_file=/var/log/mysql-slow/slow.log
+long_query_time=3 设置慢查询超时时间 单位是:秒
+```
+
+创建对应目录:
+
+```bash
+[root@mysql ~]# mkdir /var/log/mysql-slow
+[root@mysql ~]# chown mysql.mysql /var/log/mysql-slow/
+```
+
+重启服务:
+
+```bash
+[root@mysql ~]# systemctl restart mysqld
+```
+
+验证:
+
+```SQL
+[root@mysql ~]# mysql -uroot -p'Wdjsi@313'
+mysql> select sleep(6);
++----------+
+| sleep(6) |
++----------+
+| 0 |
++----------+
+1 row in set (6.00 sec)
+
+mysql> exit
+Bye
+
+[root@mysql ~]# cat /var/log/mysql-slow/slow.log
+/usr/sbin/mysqld, Version: 5.7.30-log (MySQL Community Server (GPL)). started with:
+Tcp port: 0 Unix socket: /var/lib/mysql/mysql.sock
+Time Id Command Argument
+# Time: 2025-03-11T11:20:18.734540Z
+# User@Host: root[root] @ localhost [] Id: 2
+# Query_time: 6.001048 Lock_time: 0.000000 Rows_sent: 1 Rows_examined: 0
+SET timestamp=1741692018;
+select sleep(6);
+```
+