MySQL慢查询日志时间与系统不一致的解决方法
如何解决MySQL慢查询日志时间与系统时间相差8小时？相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。
在对慢查询进行查看的时候发现时间不对，正好与系统时间相差8个小时。
1、慢查询显示时间如下
# Time: 2020-01-10T06:42:24.940811Z
2、系统时间
$ date
Fri Jan 10 14:42:31 CST 2020
3、查看数据库参数
mysql> show variables like 'log_timestamps';
+----------------+-------+
| Variable_name | Value |
+----------------+-------+
| log_timestamps | UTC |
+----------------+-------+
1 row in set (0.00 sec)
UTC大家都知道是世界统一时间，而我现在的系统时间是东八区，比UTC早了8个小时，这就对上了。查看官方文档看一下官网的解释。
log_timestamps
Property Value
Command-Line Format --log-timestamps=#
Introduced 5.7.2
System Variable log_timestamps
Scope Global
Dynamic Yes
Type Enumeration
Default Value UTC
Valid Values
UTC
SYSTEM
This variable controls the time zone of timestamps in messages written to the error log, and in general query log and slow query log messages written to files. It does not affect the time zone of general query log and slow query log messages written to tables (mysql.general_log, mysql.slow_log). Rows retrieved from those tables can be converted from the local system time zone to any desired time zone with CONVERT_TZ() or by setting the session time_zone system variable.
Permitted log_timestamps values are UTC (the default) and SYSTEM (local system time zone).
Timestamps are written using ISO 8601 / RFC 3339 format: YYYY-MM-DDThh:mm:ss.uuuuuu plus a tail value of Z signifying Zulu time (UTC) or ±hh:mm (an offset from UTC).
修改参数就可以解决问题。
mysql> SET GLOBAL log_timestamps = SYSTEM;
Query OK, 0 rows affected (0.00 sec)
mysql> SHOW GLOBAL VARIABLES LIKE 'log_timestamps';
+----------------+--------+
| Variable_name | Value |
+----------------+--------+
| log_timestamps | SYSTEM |
+----------------+--------+以上就是慢查询日志时间与系统不一致的解决方法，详细使用情况还需要大家自己亲自动手使用过才能领会。如果想了解更多相关内容，欢迎关注风纳云行业资讯频道！
