Export data/issues from older Jira's and import it in a new Jira?

[linuxWiz89]

I have a few Jira instances and I now I want to consolidate all of them into one single. How can I export data from all of those Jira instances and import them into a new one?

[William Crighton _CCC_ · Accepted solution]

Looking back on my answer after reviewing the Project Importer functionality for another project I threw some notes together and put it up in our OnDemand instance:

https://capitalplugins.atlassian.net/wiki/display/CP/Notes+on+JIRA+Project+Import

[William Crighton _CCC_]

To add to Jobin's response -

The only way to assess the true level of pain you are going to experience is to know how customized the JIRA instances are. You are going to want to start with the most complicated instance and merge the other, less complicated instances into it. The link in Jobin's response is your bible for the next few weeks. Couple points of interest:

1. All versions of JIRA need to be the same down to the build number
2. All custom fields shared across instances (meaning same custom field type was used to create custom field) need their custom field type jar files to be the same version.
3. While the project importer sounds nifty and cool it's really not. It is a very primative brainless utility that requires the admin to config most all of the instance before it will permit the import

Get ready for the suck.

Best of luck.

[Jobin Kuruvilla [Adaptavist]]

There is no easy way to do it. My suggestion is this:

1. Upgrade all instances to be on the same version
2. Export to XML from source instances
3. Do a project import to target instance from all exports in Step 2

Step 3 is not easy because you will have to manually import the required configurations before importing projects. See https://confluence.atlassian.com/display/JIRA/Restoring+a+Project+from+Backup