[Fedora-directory-devel] Please review: Bug 388021: MMR breaks from master that has been reinited

https://bugzilla.redhat.com/show_bug.cgi?id=388021 Resolves: bug 388021 Bug Description: MMR breaks from master that has been reinited Reviewed by: ??? Files: see diff Branch: HEAD Fix Description: This problem occurs when you have two or more masters, and you have updates that have originated at a master that have been sent to other masters (so that the other masters have a valid min/max csn for that replica in the ruv). If that master needs to be reinitialized for some reason (crash, etc.) the reinit will erase the changelog. The RUV for that master will now contain CSNs that are not in the changelog. If that master attempts to update another master, it will first look at the RUV from the consumer, which will contain the old CSNs, and it will look for those CSNs in the changelog, fail, and abort the update process, meaning this master can no longer send updates to other servers. The solution is for the master to just use the min CSN in its own RUV as the new starting point, if it has not been purged. In the case of purging, if the CSN is not found, this means the consumer is too far behind and must be reinitialized. Platforms tested: RHEL5 x86_64 Flag Day: no Doc impact: no https://bugzilla.redhat.com/attachment.cgi?id=263531&action=diff