Upgrading Jira from 7.12.3 to 8

[Andrii Striletskyi]

Hi guys!

We are planning to upgrade our Jira environment to new version. Our Jira environment has 2000 users , and It's important to keep Jira application "alive" during upgrade. Does there are any solutions how to upgrade Jira with zero-downtime to Jira 8 (except something like green-blue deployment). I've tried upgrade Jira node-by-node (by removing from our balancer) , but receive an error that Jira applications in cluster has different versions. Thank you

[Nic Brough -Adaptavist-]

There is no way to do a "no downtime" upgrade on a major version, DC's "no downtime upgrade" only supports minor release changes.

You will need to plan to take the whole lot offline to upgrade.

[Davor Fisher]

Hey Nic,

Do you think it's possible to upgrade node-by-node always keeping nodes alive until the last node. An example with 3 nodes would

1. Upgrade 1st node - 2 nodes are still active
2. Upgrade 2nd node - 1 node is still alive
3. Upgrade 3rd node - no active nodes

Once the 3rd and final node is upgrade, start JIRA on each node 1 by 1.

Also any thoughts on going from 7.12.3 to 8.0 vs 7.12.3 to 8.5 (enterprise release). With no downtime available once we get to 8 version is it safer to do small jump from 7.12 to closest 8.x version or does it not matter and we should just jump to 8.5

Davor