Guys how to make Jira fault-tolerant?

Question

JIRA

There are several Jira Servers that need file and index synchronization in failover.

Answer 1

Buy them as SaaS. With the rest there will be more pain

Answer 2

In the ideal, you need to take the DataCenter edition. Or collective farm yourself with nodes and DBMS replication.

Answer 3

You definitely need fault tolerance, maybe high availability.
My point is, if you're up for a downtime of up to 10 minutes, that's one song.
(here you just do the following: rsync (home and install with exclusion of caches and indexes, logs), snapshot indexes.
Just warn that within a short period the search index will catch up in the background and the most important projects will be ready first.
If fault tolerance: then only Datacenter or
Cloud.Other options are a violation of the licensing policy, due to the fact that you must have a hot replica.