| 2016-10-22 12:44:36 |
Marcelo Altmann |
description |
This seems a regresion / partial fix of https://bugs.launchpad.net/percona-server/+bug/1534825
Problem:
On RHEL 7, If socket variable isn't specified on my.cnf and datadir is set to a non-standard location, Percona-Server will create a socket on /var/lib/mysql/mysql.sock.
pinger function from /usr/bin/mysql-systemd will read proxy variable from my.cnf. This will return none. Then it will try to check proxy in 3 locations:
/*) adminsocket="$socket" ;; -- not set
"") adminsocket="$datadir/mysql.sock" ;; -- $datadir is on a non standard location and socket has been created on /var/lib/mysql/mysql.sock
*) adminsocket="$datadir/$socket" ;; -- $socket is empty.
Start or restart mysql service via systemctl will fail due to timeout:
[root@localhost data]# systemctl restart mysql
Job for mysqld.service failed because a timeout was exceeded. See "systemctl status mysqld.service" and "journalctl -xe" for details.
root@localhost data]# mysql --socket=/var/lib/mysql/mysql.sock
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.52-38.3 Percona Server (GPL), Release 38.3, Revision 109ad68
Copyright (c) 2009-2016 Percona LLC and/or its affiliates
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
[root@localhost data]# cat /etc/my.cnf | grep socket
[root@localhost data]# cat /etc/my.cnf | grep datadir
datadir=/mysql/data
How to reproduce:
1) Install Percona-Server
2) Change datadir location on my.cnf
3) Remove socket configuration from my.cnf
4) run systemctl [re]start mysql |
This seems a regression / partial fix of https://bugs.launchpad.net/percona-server/+bug/1534825
Problem:
On RHEL 7, If socket variable isn't specified on my.cnf and datadir is set to a non-standard location, Percona-Server will create a socket on /var/lib/mysql/mysql.sock.
pinger function from /usr/bin/mysql-systemd will read proxy variable from my.cnf. This will return none. Then it will try to check proxy in 3 locations:
/*) adminsocket="$socket" ;; -- not set
"") adminsocket="$datadir/mysql.sock" ;; -- $datadir is on a non standard location and socket has been created on /var/lib/mysql/mysql.sock
*) adminsocket="$datadir/$socket" ;; -- $socket is empty.
Start or restart mysql service via systemctl will fail due to timeout:
[root@localhost data]# systemctl restart mysql
Job for mysqld.service failed because a timeout was exceeded. See "systemctl status mysqld.service" and "journalctl -xe" for details.
root@localhost data]# mysql --socket=/var/lib/mysql/mysql.sock
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.52-38.3 Percona Server (GPL), Release 38.3, Revision 109ad68
Copyright (c) 2009-2016 Percona LLC and/or its affiliates
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
[root@localhost data]# cat /etc/my.cnf | grep socket
[root@localhost data]# cat /etc/my.cnf | grep datadir
datadir=/mysql/data
How to reproduce:
1) Install Percona-Server
2) Change datadir location on my.cnf
3) Remove socket configuration from my.cnf
4) run systemctl [re]start mysql |
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