[rbd-mirror] periodic mirror status timer might fail to be scheduled
Mirror image status of some images remains outdated for indefinite time
(status of xyz9 and xyz10 here depicts that xyz9's status has not been updated for too long)
xyz9: global_id: aa8c6814-c4ba-4ad6-a770-abca58aefbcf state: up+replaying description: replaying, master_position=[object_number=3, tag_tid=1, entry_tid=7], mirror_position=, entries_behind_master=7 last_update: 2018-10-17 15:48:09 xyz10: global_id: 618ef890-c376-4822-a688-50d11347989f state: up+replaying description: replaying, master_position=[object_number=1, tag_tid=2, entry_tid=1], mirror_position=[object_number=1, tag_tid=2, entry_tid=1], entries_behind_master=0 last_update: 2018-10-17 17:13:40
Looking at a gcore of the affected process, the ImageReplayer instance is in a health state replaying but there is no timer event scheduled for updating the status.