Vitastor

Fix two monitor bugs which led to objects being “logically lost” (physically present on some secondary OSDs while primary doesn’t know about it) after multiple interrupted rebalancings
Implement “no_recovery” and “no_rebalance” flags

Add heartbeats (fixes failover in case of network issues or offline nodes)
Fix a bug where a PG could incorrectly become listed as ‘incomplete’ if historical osd_sets included a set with the the PG’s primary OSD as the only alive one
Use osd_out_time = 10 minutes by default instead of 30 minutes
Make monitors stick to a single selected etcd URL on start and not try to select random ones on every request - this was leading to etcd interaction errors when some etcds were unavailable

Fix multiple bugs leading to OSDs sometimes being unable to correctly activate PGs when a lot of PG peering events occurred in a small amount of time
Fix a bug where OSDs could list incomplete object versions during peering. The bug manifested with “local rollback operation failed” messages in OSD logs
Fix a bug where misplaced chunks for degraded and incomplete objects were not removed from extra OSDs during recovery
Fix incorrect PG history configuration resulting in OSDs being unable to find some of the objects after a PG count change
Simplify block layer write ordering logic
Avoid extra data move when a lot of OSDs are first stopped for long time and then restarted
Fix incorrect degraded & misplaced object statistics after a completed rebalance
Fix incorrect usage of pg_minsize instead of the minimal possible object chunk count in EC pools

Posts up to 2021-03-11