How to access issues in JIRA instance A from instance B?

[Jirong Hu]

Hi All

We have an Old JIRA instance and New JIRA instance running in parallel. Now the user comes up with the following requirements: 

1. "As as jira user be able to access/see stories, epics and sprint info in Old Jira on New Jira instance."
2. As a jira user be able to use the New Jira instance for back log management.
3. As a jira user be able to use the New Jira instance for Sprint execution.

What's the best way to achieve this?

Thanks

Jirong

[Nic Brough -Adaptavist-]

That's ugly.  You'll need a load of code to import a view of the old JIRA.

I'd export the old issues, import them into the new JIRA and make the projects read-only on the old one.

[GabrielleJ]

Reporter said it was related to this post (https://answers.atlassian.com/questions/30947791/answers/30947804/comments/30947823) which I think, the same approach can be applied.

[Nic Brough -Adaptavist-]

Yes, a merge is what I'm implying with the "export/import" answer.