活动 Record 允许您配置数据库的读出时间和写出时间值, 例如 :
production:
adapter: mysql
encoding: utf8
database: mydb
pool: 5
username: myuser
password: mypass
host: myhost
write_timeout: 2
read_timeout: 10
读出和写出“ 活动记录” 是独一无二的吗? 或者说, “ 活动记录” 中的那些部分是独有的? 我知道, Mysql 的概念是innodb_lock_wait_timeout , 但我不相信这与查询超时是一样的。
谢谢!
我从未使用过我的sql 宝石。但我想你可以看到我的sql 变量, 这些变量被这样的ActiveRecord使用过。
> ActiveRecord::Base.connection.execute( show variables like "%timeout%" ).to_a
=> [["connect_timeout", "10"],
["delayed_insert_timeout", "300"],
["innodb_flush_log_at_timeout", "1"],
["innodb_lock_wait_timeout", "50"],
["innodb_rollback_on_timeout", "OFF"],
["interactive_timeout", "28800"],
["lock_wait_timeout", "31536000"],
["net_read_timeout", "30"],
["net_write_timeout", "60"],
["rpl_stop_slave_timeout", "31536000"],
["slave_net_timeout", "3600"],
["wait_timeout", "2147483"]]
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