MySQL showing incorrect version?

I recently did a fresh install of MySQL 5.6.23 and overwrote my previous 5.6.17 basedir, datadir, and init files with content from the Percona 5.6.23 directory. However, now that everything has been installed, the logs and mysql client are still somehow identifying itself as MySQL 5.6.17.


| 5.6.17-66.0-log |
1 row in set (0.00 sec)

Linux CLI

root@localhost-akalaj:/home/akalaj# mysql --version
mysql Ver 14.14 Distrib 5.6.23-72.1, for Linux (x86_64) using EditLine wrapper

Base Dir Config

root@localhost-akalaj:/home/akalaj# /bin/ls -lah /usr/local | egrep "mysql|Percona"
lrwxrwxrwx 1 root staff 54 Aug 11 08:57 mysql -> /usr/local/Percona-Server-5.6.23-rel72.1-Linux.x86_64/
drwxr-xr-x 13 root root 4.0K Aug 11 08:15 Percona-Server-5.6.23-rel72.1-Linux.x86_64

This version conflict becomes a problem when using MySQL utilities as it causes me to run “–skip-version” on many things.

Where is MySQL checking the version from? How can I ensure that MySQL properly identifies the version it’s on??

I have to ask, did you restart the server binaries after you replaced files? From what I see - it looks like you are running old binaries still.

vadimtk, I suspected this as well. I had taken the following steps to ensure that old binaries were not being used prior to my post.

I ran the following for loop to ensure that all the binaries I initially copied to “/usr/local” were removed.

for i in $(ls -1 /usr/local/PerconaServer5.6.17-66.0-rel72.1-Linux.x86_64/bin/*); do rm /usr/bin/$i; done;

This was a manual installation, so the 5.6.17 binaries copied to /usr/bin were the only binaries copied out of the 5.6.17.

The current basedir=/usr/local/Percona-Server-5.6.23-rel72.1-Linux.x86_64/. The only binaries that have been copied out of there are as follows:

cp /usr/local/Percona-Server-5.6.23-rel72.1-Linux.x86_64/bin/* /usr/bin

For good measure, I also rebooted the server. Issue still persists.

Any other things I could check?

Maybe it is as simple as some PATH problem. Try “which mysql”. On my machine I get:

[knut@r730-2.atl ~]$ which mysql
[knut@r730-2.atl ~]$ mysql --version
mysql Ver 14.14 Distrib 5.1.73, for redhat-linux-gnu (x86_64) using readline 5.1
[knut@r730-2.atl ~]$ PATH=/usr/local/Percona-Server-5.7.11-4-Linux.x86_64.ssl101/bin mysql --version
mysql Ver 14.14 Distrib 5.7.11-4, for Linux (x86_64) using 6.0