I’m posting here at the recommendation of Lorraine@Percona, after a 1st post at StackExchange.
Last Thursday I experimented a bit with Percona xtrabackup on a MySQL 5.5.23 server (we’re stuck at this very old version, that’s another discussion). I installed the Percona repo as part of the task. I uninstalled the tool before the end of the day, but didn’t uninstall the repo.
On Friday I noticed that when I ran “mysql -u root -p” I got a segmentation fault!
I investigated and found (using the rpm -qa --last command) that at 5:19am Friday morning, when we were all asleep, somehow, Percona-Server-Shared was installed (by itself??), and /usr/lib64/libmysqlclient.so.16.0.0 is now part of that package, as I confirm with the rpm -qf command. I suspect that’s why the plain vanilla mysql client is dumping core, it can’t find the libraries it expects.
When I attempt to uninstall Percona server, I see that it cascades to remove the mysql-server package itself (!), so I can’t do it.
At StackExchange I was told that this is a known bug that plagues the 5.5.23 MySQL version and I received the recommendation to uninstall Percona-Server-Shared using the --nodeps option, and then install mysql-libs.
I must fix this problem ASAP, the server is a staging server (no I didn’t do it on a production server ) It’s running Redhat 6.9.
Thanks for your help,