AWS RDS for MySQL 基本维护
1、AWS查询慢日志select count(1) ,user_host frommysql.slow_log group by user_host;
select count(*) from mysql.slow_log ;
mysql> descmysql.slow_log ;
+----------------+---------------------+------+-----+-------------------+-----------------------------+
| Field | Type | Null | Key | Default | Extra |
+----------------+---------------------+------+-----+-------------------+-----------------------------+
| start_time | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
| user_host | mediumtext | NO | | NULL | |
| query_time | time | NO | | NULL | |
| lock_time | time | NO | | NULL | |
| rows_sent | int(11) | NO | | NULL | |
| rows_examined| int(11) | NO | | NULL | |
| db | varchar(512) | NO | | NULL | |
| last_insert_id | int(11) | NO | | NULL | |
| insert_id | int(11) | NO | | NULL | |
| server_id | int(10) unsigned | NO | | NULL | |
| sql_text | mediumtext | NO | | NULL | |
| thread_id | bigint(21) unsigned | NO | | NULL | |
+----------------+---------------------+------+-----+-------------------+-----------------------------+
mysql> select query_time,sql_text frommysql.slow_logorder by query_time desclimit 30; -- 慢查询安装时间排序
mysql> select query_time,sql_text frommysql.slow_log where query_time >'00:00:10'; --查询大于10s的慢查询
2、AWS RDS修改root密码
详细信息--》修改--》修改数据库实例--》新建主密码---》继续--》立即应用
注：修改主密码对业务无影响
3、AWS RDS授权另外一台ip访问
[*] 安全组添加ip的白名单
[*] 数据库中添加host的访问权限，user@'ip'
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