perl dbi 测试 mysql wait_timeout

The number of seconds the server waits for activity on a noninteractive connection before closing it. 

mysql server 等待活动的秒数在一个非交互式的连接在关闭前,超出这个时间就会关闭连接

[root@wx03 mojo]# morbo relink.pl
Server available at http://127.0.0.1:3000

$a1 is 1.1.1.1
$a2 is aa
$a3 is test
$a1 is 1.1.1.1
$a2 is aa
$a3 is test
$a1 is 1.1.1.1
$a2 is aa
$a3 is test
$a1 is 1.1.1.1
$a2 is aa
$a3 is test

超过8小时候后,再去调用接口,此时报错

DBD::mysql::st execute failed: MySQL server has gone away at /root/mojo/relink.pl line 25.
DBD::mysql::st bind_columns failed: Statement has no result columns to bind (perhaps you need to successfully call execute first, or again) at /root/mojo/relink.pl line 26.
DBD::mysql::st fetch failed: fetch() without execute() at /root/mojo/relink.pl line 27.
DBD::mysql::st execute failed: MySQL server has gone away at /root/mojo/relink.pl line 25.
DBD::mysql::st bind_columns failed: Statement has no result columns to bind (perhaps you need to successfully call execute first, or again) at /root/mojo/relink.pl line 26.
DBD::mysql::st fetch failed: fetch() without execute() at /root/mojo/relink.pl line 27.
DBD::mysql::st execute failed: MySQL server has gone away at /root/mojo/relink.pl line 25.
DBD::mysql::st bind_columns failed: Statement has no result columns to bind (perhaps you need to successfully call execute first, or again) at /root/mojo/relink.pl line 26.
DBD::mysql::st fetch failed: fetch() without execute() at /root/mojo/relink.pl line 27.
DBD::mysql::st execute failed: MySQL server has gone away at /root/mojo/relink.pl line 25.
DBD::mysql::st bind_columns failed: Statement has no result columns to bind (perhaps you need to successfully call execute first, or again) at /root/mojo/relink.pl line 26.
DBD::mysql::st fetch failed: fetch() without execute() at /root/mojo/relink.pl line 27.