Caused by: java.sql.SQLException: Couldn’t perform the operation getAutoCommit: You can’t perform any operations on this connection. It has been automatically closed by Proxool for some reason (see logs).

Caused by: java.sql.SQLException: Couldn't perform the operation getAutoCommit: You can't perform any operations on this connection. It has been automatically closed by Proxool for some reason (see logs).

mysql的timeout小于Proxool，造成事物中断；
修改mysql的timwout即可。

set GLOBAL thread_cache_size=256;