解决方案
Q: Mac 版 MySQLWorkbench 闲置一段时间再使用就卡死的解决方案 ???
A: Go to Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
多唠一句
google search mysqlworkbench keep alive
第一条就是答案,中文查询找到死都不知道怎么回事
参考
https://stackoverflow.com/questions/15712512/mysql-workbench-how-to-keep-the-connection-alive