Ceph » RADOS

<sjusthm> adapt build_push_op to do what scrub does when it discovers an inconsistent object
<sjusthm> ideally, you want to make that path fairly general so we can hook any other places where the osd sees something inconsistent into the same thing
<sjusthm> the basic concept is you will add the object to the primary's missing set
<sjusthm> and then run recovery on it
<sjusthm> making sure to update the missing_loc machinery
<sjusthm> you can look at the repair code for how that currently works
<sjusthm> after that, we will want to give the replicas a way to propogate "oh crap, I don't have this object I'm supposed to have" back to the primary where the primary can then mark its local copy of the replica missing set to be missing that object and run recovery
<sjusthm> the long term goal is for the primary and replicas whenever they find something obviously wrong with an object to be able to behave as if the inconsistency was discovered through scrub/repair
<sjusthm> instead of just crashing
<sjusthm> the path should also spam the central log since it might be an indication of a flaky disk
<sjusthm> the bug here is that build_push_op can't deal with an object which the missing set should be there isn't there
<sjusthm> the missing set does not contain that object