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I've found this error in my logs:

relocation error: /usr/lib64/libmyodbc5.so: symbol strmov, version libmysqlclient_16 not defined in file libmysqlclient_r.so.16 with link time reference

yum-error-log

yum install mysqlclient16
...
184 packages excluded due to repository priority protections
Setting up Install Process
Package mysqlclient16 is obsoleted by mysql-libs, trying to install mysql-libs-5.1.59-1.el6.art.x86_64 instead
Package matching mysql-libs-5.1.59-1.el6.art.x86_64 already installed. 
Checking for update.
Nothing to do

i've used the atomicrepo using the latest mysql-version (mysql-5.1.59-1.el6.art.x86_64) on a server driven by CentOS6.

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Plesk: This also appears in Plesk 10.3 > Application Vault as "Error 500"

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edit: i've posted my solution as a response, maybe somebody will need it

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Which MySQL version are you running? –  quanta Oct 4 '11 at 9:15
    
And how did you install it? –  ℝaphink Oct 4 '11 at 9:26
    
i've updated the question, see above –  cept0 Oct 4 '11 at 9:30

3 Answers 3

I had the same error which I had fixed by installing mysql-libs.

yum install mysql-libs
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up vote 1 down vote accepted
+100

your mysql-packages seems to be destroyed or wrong configured (i aspect this happens only on centos6)

  1. For now I may advise you to dump all databases like:

    # mysqldump -uadmin -p`cat /etc/psa/.psa.shadow` --all-databases > /root/mysql.full.dump
    
  2. Then uninstall all MySQL related packages:

    # rpm -qa | grep mysql
    # rpm -e --nodeps `rpm -qa | grep mysql`
    
  3. Disable the atomic-repo in /etc/yum.repos.d

    enabled = 0
    
  4. Clean up yum:

    # yum clean all
    
  5. Then use autoinstaller and install them:

    # /usr/local/psa/admin/bin/autoinstaller
    ...
    Next > Next > Next:
    
    11 [x] MySQL server support
    
  6. Start MySQL-Daemon again

    # service mysqld start
    
  7. After that you may restore your databases:

    # mysql -uadmin -p`cat /etc/psa/.psa.shadow` < /root/mysql.full.dump
    

don't forget to re-enable the atomic-yum repository - Enjoy!

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Same problem in Debian 6.0.4 with plesk

websrvmng: /opt/psa/admin/bin/httpdmng execution failed:
/usr/bin/sw-engine: relocation error: /usr/bin/sw-engine: symbol __cxa_pure_virtual, version libmysqlclient_16 not defined in file libmysqlclient.so.16 with link time reference
websrvmng: /opt/psa/admin/bin/httpdmng execution failed:
/usr/bin/sw-engine: relocation error: /usr/bin/sw-engine: symbol __cxa_pure_virtual, version libmysqlclient_16 not defined in file libmysqlclient.so.16 with link time reference

Fixed by installing libmysqlclient16

apt-get install libmysqlclient16
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