MySQL慢查詢日志時間與系統不一致的解決方法

如何解決MySQL慢查詢日志時間與系統時間相差8小時？相信很多沒有經驗的人對此束手無策，為此本文總結了問題出現的原因和解決方法，通過這篇文章希望你能解決這個問題。

在對慢查詢進行查看的時候發現時間不對，正好與系統時間相差8個小時。
1、慢查詢顯示時間如下
# Time: 2020-01-10T06:42:24.940811Z

2、系統時間
$ date
Fri Jan 10 14:42:31 CST 2020

3、查看數據庫參數
mysql> show variables like 'log_timestamps';
+----------------+-------+
| Variable_name  | Value |
+----------------+-------+
| log_timestamps | UTC   |
+----------------+-------+
1 row in set (0.00 sec)

UTC大家都知道是世界統一時間，而我現在的系統時間是東八區，比UTC早了8個小時，這就對上了。查看官方文檔看一下官網的解釋。
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).

修改參數就可以解決問題。
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 |
+----------------+--------+

以上就是慢查詢日志時間與系統不一致的解決方法，詳細使用情況還需要大家自己親自動手使用過才能領會。如果想了解更多相關內容，歡迎關注億速云行業資訊頻道！