Concerns about consistency and data corruption during snap refresh

[chipaca]

Ah, drat, that trello is private. I should’ve linked to

Bug? Saves are blocked to $SNAP_USER_DATA if snap updates when it is already running

@mcphail we’re aware of the problem, @niemeyer thought of a workaround, then with @jdstrand and @zyga-snapd we thought of a better one, and it’s on @zyga-snapd’s plate for working on asap. For the record, the plan is, as I recall it, that as a snap refresh is attempted, if there is a process from that snap running, the refresh is postponed (within reason). At the same time we’d make SNAP_DATA and SNAP_USER_DATA point to the current symlink instead of the current revisioned directory. We might…

and @ijohnson yes that topic is linked to from the bug.