Switch from zero downtime upgrade to regular upgrade

Question

Hi Team, I Just found out that we cannot do Zero downtime upgrade from 7.9.2 version to 8.4.1. But since I already did the upgrade in one node (it went fine, but service did not start at the end). Can I now switch to the regular upgrade (downtime upgrade) now? without restoring to the old version in the upgraded node?

Vickey Palzor Lepcha · Answer

ummm - you should have checked documents before doing this upgrade :-)

Please check the below link for further assistance ;

https://confluence.atlassian.com/adminjiraserver/upgrading-jira-data-center-with-zero-downtime-938846953.html

Praveen · Answer

It says the below,

Your node with Jira version 8.4.1 will not start up with version 7.9.2 because Jira does not support zero downtime upgrades between major releases.

Vickey Palzor Lepcha · Answer

What errors do you see in your first node after upgrade ?

It would be better to resolve that .

The whole point of having a data center and nodes is to have a seamless upgrade and " always " available situation.

If this is not achieved - no point in having a DCenter.