we have several huge migrations from one JIRA to an other Jira.
As the Project-Restore out of the XML-Backup wouldn't work, the easiest way is CSV.
So we are exporting ALL issues of one project and want to import them into the new Jira-Project.
Now the complicated part...
Of course we have many Sub-Tasks so if I follow the Atlassian-Documentation (https://confluence.atlassian.com/x/7AESCw) I have to add 2 new columns in the CSV and MANUALLY edit the Issue-IDs for regular-Tasks and also MANUALLY edit the parent-ID for Sub-Task.
For 100-issues maybe possible... What about 25.000 issues???
If I create an excel-Export with ALL fields, there is also a column "Sub-Tasks" which the issue-ID of Sub-Task. BUT I don't need the Issue-ID of SubTasks because JIRA doesn't care on those IDs, it wants the parent-ID.
Why the hell JIRA doesn't export the parent-ID? That makes Import and Export way easier!!
What are your ways to import many many issues with subtask?
I tried that once for 1 project with around 3000 issues... Took me about 4-5h to manually edit the CSV adding parent-ids... Horrible work!
EDIT: Same with attachments... If I export issues with Excel the column has: "_thumb_98770.png" as value.
The URL and name of the attachment is completely different =>
So, again, I have to edit manually thousends of lines
thanks for sharing your frustration with us, it will help us better prioritize our future tasks.
The CSV Export tool was not designed to migrate issues between instances, but we know that actually customers are using it this way, as there is actually nothing better now...
JIRA has two ongoing features that should help in your scenario:
Unfortunately I don't know any workaround that you could use right now... You could open a ticket for our support people: https://support.atlassian.com/ - maybe they faced a similar issue before.
If you're using SQL Server you can create a query ton extract the information from the database. It took just a few simple adjustment in the query. Then you can export your data in c.s.v for the export option, you can even cut and paste from SQL to excel if you have a small amount of data. It's actually a nice and simple way to go.I've import all my task and sub-task this way.
Jira now includes Issue ID and Parent ID when doing an issue export of all fields into Excel. I was able to export my tasks and subtasks from Jira, manipulate it in Excel, and import it back into Jira. I did this recently and wrote a blog about my experiences which may help. See importing-a-project-plan-with-subtasks-from-excel-into-jira
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