mysql 安装问题处理 Error in my_thread_global_end(): 1 threads didn't exit

在安装Percona-Server-server-55-5.5.38-rel35.2.el5.x86_64.rpm 时使用命令 ipm -i 安装时会出现本错误。把参数调整为-ivh 后即可。错误详细信息如下

[root@erp75 mysql_rmp]# rpm -i Percona-Server-client-55-5.5.38-rel35.2.el5.x86_64.rpm
warning: Percona-Server-client-55-5.5.38-rel35.2.el5.x86_64.rpm: Header V4 DSA signature: NOKEY, key ID cd2efd2a
[root@erp75 mysql_rmp]# rpm -i Percona-Server-server-55-5.5.38-rel35.2.el5.x86_64.rpm
warning: Percona-Server-server-55-5.5.38-rel35.2.el5.x86_64.rpm: Header V4 DSA signature: NOKEY, key ID cd2efd2a
Error in my_thread_global_end(): 1 threads didn't exit
Error in my_thread_global_end(): 1 threads didn't exit

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so,  start the server, then issue the following commands:

/usr/bin/mysqladmin -u root password 'new-password'
/usr/bin/mysqladmin -u root -h erp75.etransfar.com password 'new-password'

Alternatively you can run:
/usr/bin/mysql_sec