Hi Elena,

[root@one server ~]# rpm -qa | grep -iE 'mariadb|mysql'

MariaDB-client-10.2.9-1.el7.centos.x86_64

MariaDB-compat-10.2.9-1.el7.centos.x86_64

MariaDB-common-10.2.9-1.el7.centos.x86_64

MariaDB-server-10.2.9-1.el7.centos.x86_64

[root@another server~]#  rpm -qa | grep -iE 'mariadb|mysql'

pcp-pmda-mysql-3.10.6-2.el7.x86_64

MariaDB-client-10.2.10-1.el7.centos.x86_64

MariaDB-server-10.2.10-1.el7.centos.x86_64

MariaDB-common-10.1.18-1.el7.centos.x86_64

Steps:

I did the upgrade in two servers:

In both servers (both 10.1), I follow the below steps and got ssame unix-socket not loaded error. 

set-up repo:

curl -sS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | sudo bash

yum update MariaDB-server MariaDB-client

MariaDB-Client installed successfully, but MariaDB-server thrown error that it couldn't update.

then I remove the mariaDb-Server using below command:

yum remove MariaDB-server

then install:

yum install MariaDB-server

then mysql-upgrade:

I got the error with unix-socket.

Do you think yum update MariaDB-server caused this issue? Do I need to remove and then install, instead of update. Please advise. 

 

On Mon, Nov 13, 2017 at 4:49 PM, Elena Stepanova <elenst@montyprogram.com> wrote:

Hi Karthick,

On 11/13/2017 11:11 AM, Karthick Subramanian wrote:

All,

Did anyone face issues after upgrading the mariadb from 10.1 to 10.2 to login to root user as shown below:

mysql -u root

I got the error - unix_socket not loaded.

I noticed that the unix_socket authentication is required after the upgrade for root login from localhost. Can anyone confirm whether this is part of the feature after upgrades.

This is strange, upgrade to packages *provided by MariaDB* shouldn't do it. Packages provided by another party could be a different story. Could you please paste the output of rpm -qa | grep -iE 'mariadb|mysql' or alike?

In my previous version:

select user, plugin from mysql.user;

+-----------+------+-------------+
| Host      | User | plugin      |
+-----------+------+-------------+
| localhost | root |                |
------------------------------------

After upgrade:

select user, plugin from mysql.user;

+-----------+------+-------------+
| Host      | User | plugin      |
+-----------+------+-------------+
| localhost | root | unix_socket |
---------------------------------------

The other way round is more common -- some variations of 10.1 did set unix_socket authentication for local root and could have it enabled by default, and then after upgrade to regular 10.2 unix_socket would become disabled while root would still require it.

Is it possible that your previous installation points at a different data directory, while the old one that 10.2 now uses had this kind of configuration before?

Regards,
Elena

Regards,
Karthick



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