I want to retain the old version as a reference to see if anything missing after upgrade.
1. Put both on the same server, different directories
Fail! I can't start the old version after shutting down the new version. Maybe due to license issue ?
2. New version on production server, old version on test server
Fail! The same reason as 1.
3. New version on another production server, old intact as status quo
Does this works? Haven't tried it because I'm afraid of the scenario that the old version can't be started due to license issue.
Or is there any recommendated backup strategy?
They should all work. It means you are doing something incorrect here. Atlassian has a DEV license that you can use for every production license your purchase for test instances. This is not an issue.
Are you sure they are completely separate instances that you have setup? Database? All the directories? Any other settings?
Are you installing this on Windows or Linux? Are they running on the same port? You will need to change the port if on the same machine.
Thx for you reply.
I have changed the port but still fails.
Take option 1 for exemple:
New version -->new production license -->new correspondent DEV license
Old version -->old production license
After upgrade, is the old production license still valid?
Or do I have to change the old version's license to new correspondent DEV license?
And how? (Manaully change confluence.cfg.xml?)
For option 2 (move all the directories and files to test server):
Because the license has bind to specific server ID,
option 2 fails due to different server.
I have to re-install and restore from backup, which may miss something during upgrade.
The goal is to keep the old version completely intact as a reference.
Or can you share your previous successful experience ?
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