标签：配置 report warning ring and like style 环境 原因
mysql今天从5.6切到5.7，在测试环境中，日志是全部打印的，发现打了一个警告：
Incorrect string value: ‘\xD6\xD0\xB9\xFA\xB1\xEA...‘ for column ‘VARIABLE_VALUE‘ at row 478
于是，谷歌之后发现答案全都是说插入数据时编码错误，然而我并没有插入数据，只是查询数据，而且网上说的那些配置修改早就修改好了。
累觉不爱，但是本着程序员精神，蛋疼了一会儿后继续谷歌，并且研究日志，发现只要执行 SHOW VARIABLES LIKE ‘XXX‘的命令就会打印一个警告。
在mysql客户端也验证了这个问题，找到了原因，于是再谷歌，发现了bug report：https://bugs.mysql.com/bug.php?id=82414
[2 Aug 16:01] Lowe Ryan Description: > SHOW CREATE TABLE INFORMATION_SCHEMA.GLOBAL_VARIABLES\G *************************** 1. row *************************** Table: GLOBAL_VARIABLES Create Table: CREATE TEMPORARY TABLE `GLOBAL_VARIABLES` ( `VARIABLE_NAME` varchar(64) NOT NULL DEFAULT ‘‘, `VARIABLE_VALUE` varchar(1024) DEFAULT NULL ) ENGINE=MEMORY DEFAULT CHARSET=utf8 1 row in set (0.00 sec) When I set log_bin as follows: log-bin=?? It correctly sets the files on disk: -rw-rw---- 1 rlowe 1278 174B Aug 2 08:34 ??.000001 -rw-rw---- 1 rlowe 1278 174B Aug 2 08:40 ??.000002 -rw-rw---- 1 rlowe 1278 151B Aug 2 08:53 ??.000003 -rw-rw---- 1 rlowe 1278 42B Aug 2 08:53 ??.index But I cannot accurately retrieve log_bin_basename: > SHOW GLOBAL VARIABLES LIKE ‘log_bin_basename‘; +------------------+-----------------------------------------------------------+ | Variable_name | Value | +------------------+-----------------------------------------------------------+ | log_bin_basename | /Users/rlowe/sandboxes/rsandbox_mysql-5_6_23/master/data/ | +------------------+-----------------------------------------------------------+ 1 row in set, 1 warning (0.00 sec) > SHOW WARNINGS; +---------+------+---------------------------------------------------------------------------------+ | Level | Code | Message | +---------+------+---------------------------------------------------------------------------------+ | Warning | 1366 | Incorrect string value: ‘\xF0\x9F\x92\xA9‘ for column ‘VARIABLE_VALUE‘ at row 1 | +---------+------+---------------------------------------------------------------------------------+ 1 row in set (0.00 sec) How to repeat: Follow the steps above Suggested fix: Disallow utf8mb4 characters when setting log_bin OR change the character set of GLOBAL_VARIABLES [2 Aug 16:20] Umesh Umesh Hello Lowe Ryan, Thank you for the report. Thanks, Umesh
此致，敬礼
虽然没有什么用，但一种爽的感觉悠然而生，我想这就是程序员精神。
标签：配置 report warning ring and like style 环境 原因
原文地址：http://www.cnblogs.com/pengyusong/p/6008936.html
