https://fedorahosted.org/sssd/ticket/2737
Hi, it should work... :-) However, I wanted to make import as transaction so no changes are made if some error occurs, but I had some troubles with it so I gave up eventually.
Of course, it would be quite difficult to make it safe across domains thus my intention was only to ensure that either all changes are done in a domain or none. But still leaving the possibility that changes are commited in one domain but cancelled in another.
I tried to start sysdb transaction on all used domains and then commit/cancel it, writing some neat mechanism for it. However, I occasionally run into a problem when data provider hangs when trying to safe a user. It looked like some sort of race condition.
Unfortunately I managed to delete the code so I can't show it to you, I think it would be a nice feature so if anyone familiar with ldb want to step in, he's welcome.