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Upgrading to MySQL 5.5

Discussion in 'Database Discussion' started by gowrann, Jun 26, 2013.

  1. gowrann

    gowrann Member

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    Hi All,

    With MySQL being end of life at the end of the year, the time is approaching to upgrade to version 5.5.

    2 questions;
    a) Is it generally safe to upgrade using the WHM tool, with sites generally comprising of regular CMS systems WordPress, Drupal...

    b) Is MySQL server unavailable during the upgrade process?

    Many Thanks
     
    #1 gowrann, Jun 26, 2013
  2. 24x7server

    24x7server Well-Known Member

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    Hello,

    Yes, You can upgrade your MySQL using WebHost Manager (WHM) via the following menu path:
    WHM: Main >> Software >> MySQL Upgrade

    And here are the MySQL upgrade Docs : MySQL Upgrade
     
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    #2 24x7server, Jun 29, 2013
  3. gowrann

    gowrann Member

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    Hi - yes understand where it is and how to use it - was looking for feedback from people that have upgraded - good/bad?
     
    #3 gowrann, Jun 30, 2013
  4. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Hello :)

    MySQL upgrades are generally safe, however there can be compatibility issues with your older applications if they do not support the use of MySQL 5.5. It's often a good idea to check the versions of the applications installed on your websites and verify they are compatible with MySQL 5.5.

    Thank you.
     
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    #4 cPanelMichael, Jul 1, 2013
  5. gowrann

    gowrann Member

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    Thanks Michael for that.

    Can you advise on the 2nd part of the question :
    Regards
     
    #5 gowrann, Jul 3, 2013
  6. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Yes, there will be a period of time when the new MySQL RPMs are installing that MySQL will not be accessible. If the MySQL version is changing, there may also be a period of time where your PHP scripts that use MySQL may not load while EasyApache builds PHP against the new version.

    Thank you.
     
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    #6 cPanelMichael, Jul 3, 2013
  7. gowrann

    gowrann Member

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    Ok did the upgrade which went well - there is downtime for all sites during the upgrade with an error 500 displayed if browsed to.

    I had the unattended mysql upgrade and the lower version of PHP was compiled afterwards, so had to run easyapache after to get to the latest php (maybe I hadn't saved my prior config), the downtime was about 20 minutes - that was for me and I had about 500mb of compressed mysql data for about 100 sites.

    But yes upgrade was ok!
     
    #7 gowrann, Jul 13, 2013
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