How to replace MySQL with MariaDB in 11.36

Important: This setup is considered to be unsupported by the cPanel/WHM team. Please note that once cPanel/WHM no longer maintains MySQL on your system it is on the Systems Administrator to manage and maintain any updates and maintenance on the database software.  We recommend only experienced systems administrators perform the above and we are not responsible for any possible data loss.

Below you will find some steps on how to affectively stop cPanel/WHM from maintaining MySQL and begin utilizing MariaDB for any and all database activity on your server. MariaDB is “An enhanced, drop-in replacement for MySQL” (Source: https://mariadb.com/). The guide found below is based around utilizing the new RPM tools we provide in 11.36.
Important Links
MariaDB Versus MySQL Compatibility
MariaDB Versus MySQL Features

Documentation on the RPM system provided by cPanel & WHM

Step 1: Backup existing MySQL data

Make sure to save all existing data just in case there are any issues.

cp -Rf /var/lib/mysql /var/lib/mysql-old
mv /etc/my.cnf /etc/my.cnf-old

 

Step 2: Disable the targets so cPanel no longer handles MySQL updates

The following will mark the versions of MySQL we distribute as uninstalled so they are no longer maintained by cPanel/WHM

/scripts/update_local_rpm_versions --edit target_settings.MySQL50 uninstalled
/scripts/update_local_rpm_versions --edit target_settings.MySQL51 uninstalled
/scripts/update_local_rpm_versions --edit target_settings.MySQL55 uninstalled

 

Step 3: Remove existing MySQL RPM’s so theres a clean slate for MariaDB

Important: The below command will uninstall the MySQL RPM’s! 
/scripts/check_cpanel_rpms --fix --targets=MySQL50,MySQL51,MySQL55
[20130218.235953]    
[20130218.235953]   The following RPMs are unneeded on your system and should be uninstalled:
[20130218.235953]   MySQL51-devel.5.1.68-1.cp1136
[20130218.235953]   MySQL51-test.5.1.68-1.cp1136
[20130218.235953]   MySQL51-shared.5.1.68-1.cp1136
[20130218.235953]   MySQL51-client.5.1.68-1.cp1136
[20130218.235953]   MySQL51-server.5.1.68-1.cp1136
[20130218.235953]   Removing 0 broken rpms: 
[20130218.235953]   rpm: no packages given for erase
[20130218.235953]   No new RPMS needed for install
[20130218.235953]   Uninstalling unneeded rpms: MySQL51-devel MySQL51-test MySQL51-shared MySQL51-client MySQL51-server
[20130219.000004]   Shutting down MySQL........ SUCCESS!

 

Step 4: Create a yum repository for MariaDB

vi /etc/yum.repos.d/MariaDB.repo

place the following inside of it depending on the DISTRO (https://downloads.mariadb.org/mariadb/repositories/):

[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/5.5.29/centos6-amd64/
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

 

Step 5: Remove php from the /etc/yum.conf file then run the following commands

yum install MariaDB-server MariaDB-client MariaDB-devel
/etc/init.d/mysql start
mysql_upgrade
/etc/init.d/mysql restart

Step 5: Add php back to the /etc/yum.conf file to ensure future php updates don’t get clobbered

Final Step: Rebuild easyapache/php to ensure modules are intact/working

/scripts/easyapache --build

 

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  • pleasesendmoney@gimmeabuck.com

    I don’t understand why cpanel would spend even one second writing a blog post on the official cpanel blog about how to install replace core cpanel supported software with unsupported software.
    This seems like something more appropriate for the forums somewhere…

    • http://www.cpanel.net/ Brian Oates

      Compared to the forums, the blog is a more direct and less cluttered way to compile together the various (un)supported guides that cPanel staff has put together. Despite that this particular guide is unsupported, cPanel is passionate at doing everything well. If it’s something our customers may try anyway in spite of MariaDB not having official support, there’s a lot of us here that like to put our knowledge and experience to work and come up with something that should at least reduce any complications experienced when those customers try it

      Something I also want to stress is that these articles do not detract from or lessen the time spent developing and improving our software.

  • http://www.facebook.com/ovidio.balan Cristian O. Balan

    MariaDB would be integrated into WHM/cPanel in the near future?

  • http://twitter.com/vbtechsupport GEORGE LIU

    Nice to have something semi-official from Cpanel folks. Thanks :)

    Feature request for MariaDB still one of the highest voted requests http://features.cpanel.net/responses/as-a-server-administrator-i-want-mariadb-support-so-that-i-can-accomodate-both-innodb-and-noninnodb-users :)

  • Connor Tumbleson

    Once we remove php from the exclusion yum.conf, do we add it back after we’ve completed the re-build of apache?

    • Sam

      Would lik to know the answer to this.

    • Jesse

      Hey @google-558abd4c43282f502545986422fcfc01:disqus, yes, that is correct. I’ve included this step in the guide. It shouldn’t give any issues but it will ensure future php updates don’t clobber the updates we provide. Thanks for pointing that out!

  • http://portofacil.net Janio Sarmento

    I tried this tutorial today, and I put down my server.

    One should be advised that recent versions of MariaDB DO NOT include some client libraries needed to run PHP (libmysqlclient.so.18, for example). It seems to me this tutorial could work for CentOS 6, but for CentOS 6 the server will not be usable.

    Or, otherwise, I missed some important detail, but I don’t think so.

    • Jesse

      Hey @janiosarmento:disqus, please note that this tutorial is basically just for switching out the MySQL with MariaDB – any modules after this is something extra that will need to be done. Unless newer versions of MariaDB have been released since the posting of this article that don’t include this stuff, it should all work after the instructions above.

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  • Yannis Karampelas

    How do we restore mysql if needed?

    • Jesse

      Hey Yannis Karampelas, you essentially need to uninstall the MariaDB RPM’s and then run:

      /scripts/update_local_rpm_versions –edit target_settings.MySQL55 installed

      /scripts/check_cpanel_rpms –fix

      • Yannis Karampelas

        thanks Jesse!

        • Jesse

          Hey @yanniskarampelas:disqus, No problem!

  • Asterisk

    Is there a means to rollback effectively or restore mysql in the event that things go sideways? I noticed someone mentioned wrecking their server because of what seems like compatibility issues?

    • Jesse

      Hey Asterisk, you can revert back to MySQL by removing the MariaDB RPM’s and then running the following:

      /scripts/update_local_rpm_versions –edit target_settings.MySQL55 installed

      /scripts/check_cpanel_rpms –fix

      Nothing in the above guide should have a possibility of wrecking your server.

      • Asterisk

        Thanks for the response, Jesse. I’m not terribly concerned about the guide, but it’s nice to have the information there. As the server I’m looking to do this on has a couple of live elements(like our documentation).

        • Jesse

          Hey Asterisk, the switch should be seamless, however, backups and precaution should always be taken if you’re doing it on a live and active server.

          • Asterisk

            Oh yeah, I got that anthem down. Haha! Thanks again.

  • iBotPeaches

    I just bite the bullet and did on 11.38. No problems, worked great :)

    • Jesse

      Hello @iBotPeaches:disqus, I’m glad everything worked out for you!

  • http://ralphchastain.com/ Ralph Chastain

    Can we run easy apache or will it screw up the server?

    • Jesse

      Hey @ralphchastain:disqus, yes you can still run easyapache – since you’re utilizing yum to install mariadb, it will continue to utilize this.

      • http://ralphchastain.com/ Ralph Chastain

        I didn’t mean that. It was late. I saw this. Ooops.:
        /scripts/easyapache –build
        I can run easy apache but should I uncheck mysql while building easy apache or does it do the same thing as mariadb? It’s alright to check it? I had dependency errors while trying to install it in the first place.

        • http://portofacil.net Janio Sarmento

          Uncheck “use MySQL of the system” in EasyApache and you should be ready to go. I’ve been using MariaDB in several cPanel boxes for months now, with no issues of any kind.

  • Jordan

    Hi is there anyone up for helping me to migrate from MySQL to MariaDB. I’ll pay him/her for the time :)
    I do not know anything about server and I’m not a techie guy. I know this can be easily done, but I cannot afford any mistake at all.

    • SEO_SEM_Stuff

      I can do this for you… my skype is alex_nadtoka

  • http://www.nickifaulk.com/ Nicki

    Nice guide! I have been eyeing MariaDB for a while and had wondered how easily it could be replaced on a cPanel box. Thank you for sharing this! ^_^

  • jimlongo

    Tried this twice without success (11.38.2), a couple of comments.
    You might need to create the directory /etc/yum.repos.d before you can do
    #4 pico /etc/yum.repos.d/MariaDB.repo

    #5 remove php from /etc/yum.conf is not totally clear, I assume you mean remove it from the line “exclude = … php* …

    Twice I tried yum install MariaDB-server MariaDB-client MariaDB-devel and both times got the following (no packages available) back
    ====
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    * base: mirror.cisp.com
    * extras: mirrors.gigenet.com
    * updates: mirror.steadfast.net
    base | 1.1 kB 00:00
    extras | 2.1 kB 00:00
    mariadb | 1.9 kB 00:00
    mariadb/primary_db | 14 kB 00:00
    updates | 1.9 kB 00:00
    Excluding Packages in global exclude list
    Finished
    Setting up Install Process
    No package MariaDB-server available.
    No package MariaDB-client available.
    No package MariaDB-devel available.
    Nothing to do
    =====

    at that point cannot restart mysql as the directory no longer exists, and need to revert via
    /scripts/update_local_rpm_versions –edit target_settings.MySQL55 installed
    /scripts/check_cpanel_rpms –fix

    to get mysql up and running again.

    I don’t know if this is a mirror issue, or something in the above instructions.
    I noted the MariaDB pages instruct the yum install to be only
    yum install MariaDB-server MariaDB-client

    Thanks.

    • Jesse

      @jimlongo:disqus, /etc/yum.repos.d should already exist on CentOS systems.

      Please note the guide is meant for a systems administrator who’s already familiar with these files, but good note about it needing to be removed from excludes (although it is the only place that has it).

      I only showed the mirror in the comment box as an example, in my note above the step it does say it depends on the distribution.

      I am glad you got things working!

  • http://www.wismoyo.com Rahmat Agung Wismoyo

    in #4, i need to temporary remove perl* too from yum.conf, because instalation need dependency with perl-DBI

    • Jesse

      @rawiz:disqus cPanel does not depend on system perl any longer, so you can remove the perl exclude permanently as we no longer manage system perl. New installs will no longer have it in the excludes file.

  • laztrix

    When will cpanel offically support MariaDB? I’ve been reading all the “we’re investigating” messages posted by cpanel officials but years has passed, nothing! Why are we being stalled?

    • Jesse

      @laztrix:disqus There is no definitive timeframe on when/if this will be supported – following the features page on this will give the most up to date information on where it’s at with our development feature teams.

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  • Gavin Schumaker

    Given that Google has announced that it’s migrating away from MySQL to MariaDB, it’s high time for cPanel to jump on the bandwagon and migrate to MariaDB – especially since Oracle is not exactly rushing out new features or even bug fixes.

    MariahDB is really cooking along with new features for very high performance – including NoSQL support using different database engines, and much better (i.e., speedier) master/slave replication) and is of course headed up by Monty Widenius, one of the original creators of MySQL

    I’ve been a fan of MySQL since the late nineties, but with it’s acquisition by Oracle, it’s heading downhill fast. As a long time sysadmin and web host provider, I’d much rather have MariahDB under the cPanel hood going forward.