maria-discuss team mailing list archive

[Jonathan Gazeley <Jonathan.Gazeley@xxxxxxxxxxxxx>]

Hi folks,

I did a routine reboot on one of my database nodes and it was unable to 
start up wsrep afterwards. I'm running MariaDB 10.1.24 with Galera 
25.3.20 on CentOS 7.3.1611 (latest).

Jul 03 09:53:07 db2.example.com sh[14400]: WSREP: Failed to start mysqld 
for wsrep recovery: '2017-07-03  9:50:49 139825954236672 [ERROR] Can't 
open shared library '/usr/lib64/mysql/plugin/auth_socket.so' (errno: 0, 
cannot open shared object file: No such file or directory)
Jul 03 09:53:07 db2.example.com sh[14400]: 2017-07-03  9:50:49 
139825954236672 [ERROR] Couldn't load plugins from 'auth_socket.so'.

It fails to find auth_socket.so, but when I check in yum what provides 
that file, only MariaDB 5.5 from the CentOS repo has it, but not MariaDB 
10.1 from the MariaDB repo. I read in the notes that auth_socket is 
deprecated and going in 10.2. My config file specifies 
'loose-plugin-load=auth_socket'. If I just remove this line, will it 
work? Will it break wsrep?

Can someone explain this to me? Right now I am nervous because if the 
other nodes also can't start up wsrep after rebooting then I will lose 
my cluster. I'm looking for ways to resolve the problem and get the node 
back online. I'm happy to upgrade to 10.2 if necessary.

Thanks,
Jonathan