v0.56.2 “bobtail” osd: snapshot trimming fixes osd: scrub snapshot metadata osd: fix osdmap trimming osd: misc peering fixes osd: stop heartbeating with peers if internal threads are stuck/hung osd: PG removal is friendlier to other workloads osd: fix recovery start delay (was causing very slow recovery) osd: fix scheduling of explicitly requested scrubs osd: fix scrub interval config options osd: improve recovery vs client io tuning osd: improve ‘slow request’ warning detail for better diagnosis osd: default CRUSH map now distributes across hosts, not OSDs osd: fix crash on 32-bit hosts triggered by librbd clients librbd: fix error handling when talking to older OSDs mon: fix a few rare crashes ceph command: ability to easily adjust CRUSH tunables radosgw: object copy does not copy source ACLs rados command: fix omap command usage sysvinit script: set ulimit -n properly on remote hosts msgr: fix narrow race with message queuing fixed compilation on some old distros (e.g., RHEL 5.x) The ebuild for 0.56.1 seems to work for 0.56.2 (tested by using the volume from other machines).
v0.56.3 “bobtail” This release has several bug fixes surrounding OSD stability. Most significantly, an issue with OSDs being unresponsive shortly after startup (and occasionally crashing due to an internal heartbeat check) is resolved. Please upgrade. Upgrading A bug was fixed in which the OSDMap epoch for PGs without any IO requests was not recorded. If there are pools in the cluster that are completely idle (for example, the data and metadata pools normally used by CephFS), and a large number of OSDMap epochs have elapsed since the ceph-osd daemon was last restarted, those maps will get reprocessed when the daemon restarts. This process can take a while if there are a lot of maps. A workaround is to ‘touch’ any idle pools with IO prior to restarting the daemons after packages are upgraded: rados bench 10 write -t 1 -b 4096 -p {POOLNAME} This will typically generate enough IO to touch every PG in the pool without generating significant cluster load, and also cleans up any temporary objects it creates. Notable changes osd: flush peering work queue prior to start osd: persist osdmap epoch for idle PGs osd: fix and simplify connection handling for heartbeats osd: avoid crash on invalid admin command mon: fix rare races with monitor elections and commands mon: enforce that OSD reweights be between 0 and 1 (NOTE: not CRUSH weights) mon: approximate client, recovery bandwidth logging radosgw: fixed some XML formatting to conform to Swift API inconsistency radosgw: fix usage accounting bug; add repair tool radosgw: make fallback URI configurable (necessary on some web servers) librbd: fix handling for interrupted ‘unprotect’ operations mds, ceph-fuse: allow file and directory layouts to be modified via virtual xattrs
