Postfix Error while loading shared libraries: libmysqlclient.so.18

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                          When I try to start postfix I get these errors:

    /usr/sbin/postconf: error while loading shared libraries: libmysqlclient.so.18: cannot open shared object file: No such...r directory
    /usr/bin/newaliases: error while loading shared libraries: libmysqlclient.so.18: cannot open shared object file: No suc...r directory
    /usr/sbin/postfix: error while loading shared libraries: libmysqlclient.so.18:  cannot open shared object file: No suc...r directory

Postfix use to work fine until I installed mysql. I'm not sure why mysql is even related to the Postfix errors.

When I run the find .  -name 'libmysqlclient*' command I get this:

    ./usr/lib64/mysql/libmysqlclient.so.21
    ./usr/lib64/mysql/libmysqlclient.so.21.2.30

    # ls -al /usr/lib64/mysql
    total 7520
    drwxr-xr-x.  5 root root     109 Sep 29 13:47 .
    dr-xr-xr-x. 49 root root   28672 Sep 29 13:49 ..
    lrwxrwxrwx.  1 root root      25 Sep 28 21:53 libmysqlclient.so.21 -> libmysqlclient.so.21.2.30
    -rwxr-xr-x.  1 root root 7651120 Jul  6 17:53 libmysqlclient.so.21.2.30
    drwxr-xr-x.  4 root root      28 Sep 28 21:53 mecab
    drwxr-xr-x.  2 root root    4096 Sep 28 21:53 plugin
    drwxr-xr-x.  3 root root     131 Sep 28 21:53 private

There is no 18 version installed and I'm confused as to why it is looking for 18 instead of 21.

Further info which my be helpful:

    mysql-community-server-8.0.30-1.el7.x86_64
    #which mysql: /bin/mysql/mysql  
    #mysql -V: Ver 8.0.30 for Linux on x86_64 (MySQL Community Server - GPL)
    #mysqld -V: /usr/sbin/mysqld  Ver 8.0.30 for Linux on x86_64 (MySQL Community Server - GPL)
    #php -v PHP 8.0.20 (cli)
    #systemctl status mysqld: Active: active (running) since Fri 2022-09-30 23:27:02 CDT; 3 days ago
    # rpm -qa postfix: postfix-2.10.1-6.amzn2.0.3.x86_64
    AWS Linux 2 Server

***Can anyone help me with this? I checked other posts on here which are similar to my issue, however, I wasn't able to find a solution that was close enough to my situation that I could try.***

Finally, I also ran this command which outputs a ton of info which is why I saved this for the end of this post:

    # repoquery --whatprovides *libmysqlclient*

    mysql-community-libs-0:8.0.18-1.el7.i686
    mysql-community-libs-0:8.0.11-1.el7.i686
    mysql-community-devel-0:8.0.11-1.el7.i686
    mysql-community-libs-0:8.0.27-1.el7.i686
    mysql-community-libs-compat-0:8.0.15-1.el7.i686
    mysql-community-libs-0:8.0.27-1.el7.x86_64
    mysql-community-devel-0:8.0.17-1.el7.i686
    mysql-workbench-community-0:6.3.5-1.el7.x86_64
    mysql-community-libs-0:8.0.30-1.el7.i686
    mysql-community-devel-0:8.0.15-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.24-1.el7.i686
    mysql-community-libs-compat-0:8.0.26-1.el7.i686
    mysql-workbench-community-0:8.0.16-1.el7.x86_64
    mysql-community-libs-0:8.0.26-1.el7.i686
    mysql-community-libs-0:8.0.17-1.el7.i686
    mysql-workbench-community-0:8.0.12-1.el7.x86_64
    mysql-community-devel-0:8.0.21-1.el7.i686
    mysql-community-libs-compat-0:8.0.13-1.el7.i686
    mysql-community-libs-compat-0:8.0.16-2.el7.i686
    mariadb-devel-1:5.5.60-1.amzn2.x86_64
    mysql-community-devel-0:8.0.16-2.el7.i686
    mysql-community-devel-0:8.0.19-1.el7.x86_64
    mysql-community-devel-0:8.0.18-1.el7.x86_64
    mysql-community-libs-0:8.0.16-2.el7.i686
    mysql-community-libs-compat-0:8.0.22-1.el7.i686
    mariadb-devel-1:5.5.56-2.amzn2.0.2.x86_64
    mysql-community-libs-0:8.0.16-2.el7.x86_64
    mysql-community-devel-0:8.0.26-1.el7.i686
    mysql-community-libs-0:8.0.22-1.el7.x86_64
    mysql-community-libs-0:8.0.28-1.el7.x86_64
    mysql-community-libs-0:8.0.23-1.el7.x86_64
    mysql-community-devel-0:8.0.30-1.el7.i686
    mysql-community-devel-0:8.0.26-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.19-1.el7.i686
    mysql-community-devel-0:8.0.11-1.el7.x86_64
    mysql-community-libs-0:8.0.13-1.el7.i686
    mysql-community-libs-compat-0:8.0.12-1.el7.i686
    mariadb-devel-1:5.5.62-1.amzn2.0.1.x86_64
    mysql-workbench-community-0:8.0.22-1.el7.x86_64
    mysql-community-devel-0:8.0.15-1.el7.i686
    mysql-community-devel-0:8.0.12-1.el7.x86_64
    mysql-community-devel-0:8.0.12-1.el7.i686
    mysql-workbench-community-0:6.2.4-1.el7.x86_64
    mysql-community-devel-0:8.0.23-1.el7.i686
    mariadb-libs-1:5.5.62-1.amzn2.0.1.i686
    mysql-community-devel-0:8.0.16-1.el7.i686
    mysql-community-libs-compat-0:8.0.25-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.21-1.el7.i686
    mysql-community-libs-0:8.0.21-1.el7.x86_64
    mysql-workbench-community-0:8.0.13-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.14-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.27-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.30-1.el7.i686
    mysql-community-libs-compat-0:8.0.23-1.el7.i686
    mysql-community-devel-0:8.0.14-1.el7.x86_64
    mariadb-devel-1:5.5.56-2.amzn2.x86_64
    mysql-community-libs-0:8.0.17-1.el7.x86_64
    mysql-community-devel-0:8.0.22-1.el7.i686
    mysql-community-libs-0:8.0.20-1.el7.i686
    mariadb-libs-1:5.5.68-1.amzn2.i686
    mysql-community-libs-0:8.0.25-1.el7.i686
    mariadb-libs-1:5.5.56-2.amzn2.x86_64
    mysql-community-libs-0:8.0.16-1.el7.i686
    mysql-community-libs-compat-0:8.0.14-1.el7.i686
    mariadb-libs-1:5.5.68-1.amzn2.x86_64
    mysql-community-libs-compat-0:8.0.19-1.el7.x86_64
    mysql-community-libs-0:8.0.12-1.el7.i686
    mysql-workbench-community-0:6.3.6-1.el7.x86_64
    mysql-workbench-community-0:6.3.7-1.el7.x86_64
    mysql-community-libs-0:8.0.11-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.25-1.el7.i686
    mysql-community-libs-0:8.0.20-1.el7.x86_64
    mariadb-libs-1:5.5.60-1.amzn2.i686
    mysql-community-libs-compat-0:8.0.30-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.11-1.el7.i686
    mysql-community-libs-0:8.0.25-1.el7.x86_64
    mariadb-devel-1:5.5.68-1.amzn2.x86_64
    mysql-community-devel-0:8.0.22-1.el7.x86_64
    mariadb-libs-1:5.5.56-2.amzn2.0.2.i686
    mysql-community-libs-compat-0:8.0.21-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.18-1.el7.x86_64
    mysql-community-devel-0:8.0.28-1.el7.i686
    mariadb-libs-1:5.5.62-1.amzn2.0.1.x86_64
    mysql-community-libs-compat-0:8.0.24-1.el7.x86_64
    mysql-community-devel-0:8.0.28-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.18-1.el7.i686
    mysql-community-libs-0:8.0.19-1.el7.i686
    mysql-community-libs-0:8.0.15-1.el7.x86_64
    mysql-community-devel-0:8.0.19-1.el7.i686
    mysql-community-libs-0:8.0.28-1.el7.i686
    mariadb-libs-1:5.5.64-1.amzn2.x86_64
    mysql-workbench-community-0:6.2.5-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.16-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.28-1.el7.x86_64
    mariadb-libs-1:5.5.60-1.amzn2.x86_64
    mysql-workbench-community-0:8.0.14-1.el7.x86_64
    mysql-workbench-community-0:8.0.15-1.el7.x86_64
    mysql-community-libs-0:8.0.21-1.el7.i686
    mysql-community-devel-0:8.0.23-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.11-1.el7.x86_64
    mysql-workbench-community-0:6.3.4-1.el7.x86_64
    mysql-workbench-community-0:6.2.3-1.el7.x86_64
    mariadb-devel-1:5.5.64-1.amzn2.x86_64
    mysql-community-devel-0:8.0.24-1.el7.x86_64
    mysql-community-libs-0:8.0.23-1.el7.i686
    mysql-workbench-community-0:6.3.3-1.el7.x86_64
    mysql-community-devel-0:8.0.25-1.el7.i686
    mysql-workbench-community-0:8.0.18-1.el7.x86_64
    mysql-community-devel-0:8.0.20-1.el7.i686
    mariadb-libs-1:5.5.64-1.amzn2.i686
    mysql-community-libs-compat-0:8.0.23-1.el7.x86_64
    mysql-community-devel-0:8.0.16-2.el7.x86_64
    mysql-community-libs-0:8.0.14-1.el7.i686
    mysql-community-libs-0:8.0.19-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.12-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.13-1.el7.x86_64
    mysql-community-devel-0:8.0.17-1.el7.x86_64
    mysql-community-devel-0:8.0.27-1.el7.x86_64
    mysql-workbench-community-0:8.0.21-1.el7.x86_64
    mysql-community-libs-0:8.0.22-1.el7.i686
    mysql-community-devel-0:8.0.13-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.26-1.el7.x86_64
    mysql-workbench-community-0:6.3.6-2.el7.x86_64
    mysql-workbench-community-0:6.3.8-1.el7.x86_64
    mysql-community-libs-0:8.0.24-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.16-1.el7.i686
    mysql-community-libs-compat-0:8.0.17-1.el7.i686
    mysql-community-libs-compat-0:8.0.22-1.el7.x86_64
    mysql-community-libs-0:8.0.30-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.28-1.el7.i686
    mysql-community-devel-0:8.0.27-1.el7.i686
    mysql-community-libs-compat-0:8.0.15-1.el7.x86_64
    mysql-community-devel-0:8.0.25-1.el7.x86_64
    mysql-community-devel-0:8.0.18-1.el7.i686
    mysql-community-libs-0:8.0.18-1.el7.x86_64
    mysql-community-devel-0:8.0.16-1.el7.x86_64
    mysql-community-libs-0:8.0.26-1.el7.x86_64
    mysql-workbench-community-0:8.0.20-1.el7.x86_64
    mysql-community-libs-0:8.0.12-1.el7.x86_64
    mysql-community-libs-0:8.0.15-1.el7.i686
    mysql-workbench-community-0:8.0.19-1.el7.x86_64
    mysql-community-devel-0:8.0.30-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.17-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.20-1.el7.i686
    mysql-community-libs-0:8.0.14-1.el7.x86_64
    mysql-community-libs-compat-0:8.0.20-1.el7.x86_64
    mysql-community-libs-0:8.0.24-1.el7.i686
    mysql-community-devel-0:8.0.14-1.el7.i686
    mysql-community-devel-0:8.0.13-1.el7.i686
    mysql-community-libs-compat-0:8.0.16-2.el7.x86_64
    mysql-community-devel-0:8.0.24-1.el7.i686
    mysql-community-libs-compat-0:8.0.27-1.el7.i686
    mysql-community-libs-0:8.0.13-1.el7.x86_64
    mariadb-libs-1:5.5.56-2.amzn2.0.2.x86_64
    mysql-workbench-community-0:8.0.17-1.el7.x86_64
    mysql-community-devel-0:8.0.20-1.el7.x86_64
    mysql-community-devel-0:8.0.21-1.el7.x86_64
    mysql-community-libs-0:8.0.16-1.el7.x86_64
                        
Asked by SeniorDeveloper (131 rep)
Oct 4, 2022, 06:32 AM
Last activity: Jun 8, 2025, 07:07 PM
Postfix Error while loading shared libraries: libmysqlclient.so.18

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