3.8.2 to 4.2.3 Upgrade

RT Users
1

Hi

I am planning to upgrade our RT instance and move it to a virtual
machine. As I want to keep RT downtime to a minimum, I plan to install
RT 3.8.2 on the new VM, import the database and settings from the
current instance and then proceed with the upgrade. Is this the best way
to do it? Can you guys offer any suggestions?

Regards, Jim

2

Hi

I am planning to upgrade our RT instance and move it to a virtual machine.
As I want to keep RT downtime to a minimum, I plan to install RT 3.8.2 on
the new VM, import the database and settings from the current instance and
then proceed with the upgrade. Is this the best way to do it? Can you guys
offer any suggestions?

the way I do:

  • setup a new VM (often 3.8 RT instances are running on old OS ;))
  • install stock RT 4.2.3
  • apply back your patch, plugins, …
  • import current DB, measure time needed
  • run upgrade, measure time needed
  • test
  • if everything is ok, plan the real upgrade:
    • stop mail/http on prod server
    • dump/restore on new server
    • run upgrade
    • start mail/http on new server
    • test
    • play with dns/ip to make the new server be the production one

this way you can safely do the upgrade, test, and now exactly the
downtime to plan.

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3

We’ve done it like this:

 - install fresh RT version same as the production one
 - import the database from the current production
 - run and update prior to the last version of RT
 - once we've tested that everything is fine, started the update

procedure in the production RT

There some specific steps that you should follow (for example when you
dump your current database don’t forget to use
–default-character-set=binary) but i’m sure you’ve read whole
documentation already :wink:

Happy hunting, and good luck upgrading.On 03/24/2014 03:31 PM, Jim Tambling wrote:

Hi

I am planning to upgrade our RT instance and move it to a virtual
machine. As I want to keep RT downtime to a minimum, I plan to install
RT 3.8.2 on the new VM, import the database and settings from the
current instance and then proceed with the upgrade. Is this the best
way to do it? Can you guys offer any suggestions?

Regards, Jim