Mmm, good point - that doc used to be "this is how you do a cold standby" and then "and this is how you make it better with data centre", but it's now just a DC doc.
There is no official doc, as it's not supported by Atlassian, but I know I've set it up loads of times for all the reasons you've asked.
In most cases, it's been a variation on:
When you need failover:
I'd agree with Nic - kind of a poor man's standby solution i've seen is two mirrored application servers replicating folders. The standby being shutdown Jira.
Then the database server is doing the same thing. active / passive.
You do have to either manually intervene. If you lose an app server, turn on the secondary and repoint - or perhaps you have Nginx already setup so it will direct traffic to whatever node is available.
You could write a script to make it a button push, but these techniques you'll be down for minutes/hours - not days.
The Jira Marketing team is putting together an ebook on migrating to Data Center. We're looking for pro tips on how you staffed your project team and organized your Proof of Concept. Share yo...
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