我正在测试 proxysql 缓存功能,但出现此错误。
我的想法是使用 proxysql 来减少远程数据库服务器的负载。
2021-04-08 13:50:42 MySQL_Session.cpp:2543:handler_again___status_CHANGING_CHARSET(): [ERROR] Detected a broken connection during SET NAMES on 66.97.38.58 , 3306 : 2019, Can't initialize character set (null) (path: compiled_in)
Can't initialize character set (null) (path: compiled_in)
2021-04-08 13:50:42 MySQL_Session.cpp:2543:handler_again___status_CHANGING_CHARSET(): [ERROR] Detected a broken connection during SET NAMES on 66.97.38.58 , 3306 : 2019, Can't initialize character set (null) (path: compiled_in)
在本地服务器上,我运行这些版本。
# ProxySQL version 2.0.6
mysql> SHOW VARIABLES LIKE 'mysql-default_charset';
+-----------------------+-------+
| Variable_name | Value |
+-----------------------+-------+
| mysql-default_charset | utf8 |
+-----------------------+-------+
1 row in set (0.00 sec)
mysql> select hostgroup_id, hostname, status from runtime_mysql_servers;
+--------------+-------------+--------+
| hostgroup_id | hostname | status |
+--------------+-------------+--------+
| 1 | 66.97.x.x | ONLINE |
+--------------+-------------+--------+
1 row in set (0.00 sec)
# MySQL Ver 8.0.2
mysql> show variables like 'char%';
+--------------------------+--------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8mb4 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql-8.0/charsets/ |
+--------------------------+--------------------------------+
8 rows in set (0.01 sec)
我已经阅读了几篇关于该错误的出版物,但事实是我不知道如何解决它。
远程服务器
MySQL 5.7.32
mysql> show variables like 'char%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
有任何想法吗??
问候,