collaborative working

[S.W.]

Consider the case that different users work on one issue at the same time (Collaborative working). Who's data will be stored and is there a master/slave configuration or do the users overwrite the data the other user just produced seconds before??

[Deleted user]

"do the users overwrite the data the other user just produced seconds before??"

It might help us help you if you defined what "Data" you are referring to.

[Nic Brough -Adaptavist-]

Each commit will write after the previous one, whether it's a millisecond or a month after the previous.

JIRA retains a full history of change though, so nothing is "lost", and if a change is incompatible with the previous state, the user will be told that their change can't happen (the most common scenario is when a user transitions the issue, and the next update is an attempt to use a transition from the old status that is not available on the new status)

[Ovidiu Vasilescu]

This is a bug feature that is being tracked here: https://jira.atlassian.com/browse/JRA-6146

Right now, whoever saves last will overwrite all the data that the first user has set.

[S.W.]

And what happens if both users try to save data at the same time? Is there a versioning included?