This is a release candidate for Giant, which will hopefully be out in another week or two (s v0.86). We did a feature freeze about a month ago and since then have been doing only stabilization and bug fixing (and a handful on low-risk enhancements). A fair bit of new functionality went into the final sprint, but it's baked for quite a while now and we're feeling pretty good about it. Major items include: * librados locking refactor to improve scaling and client performance * local recovery code (LRC) erasure code plugin to trade some additional storage overhead for improved recovery performance * LTTNG tracing framework, with initial tracepoints in librados, librbd, and the OSD FileStore backend * separate monitor audit log for all administrative commands * asynchronos monitor transaction commits to reduce the impact on monitor read requests while processing updates * low-level tool for working with individual OSD data stores for debugging, recovery, and testing * many MDS improvements (bug fixes, health reporting) There are still a handful of known bugs in this release, but nothing severe enough to prevent a release. By and large we are pretty pleased with the stability and expect the final Giant release to be quite reliable. Please try this out on your non-production clusters for a preview. Notable Changes --------------- * buffer: improve rebuild_page_aligned (Ma Jianpeng) * build: fix CentOS 5 (Gerben Meijer) * build: fix build on alpha (Michael Cree, Dmitry Smirnov) * build: fix yasm check for x32 (Daniel Schepler, Sage Weil) * ceph-disk: add Scientific Linux support (Dan van der Ster) * ceph-fuse, libcephfs: fix crash in trim_caps (John Spray) * ceph-fuse, libcephfs: improve cap trimming (John Spray) * ceph-fuse, libcephfs: virtual xattrs for rstat (Yan, Zheng) * ceph.conf: update sample (Sebastien Han) * ceph.spec: many fixes (Erik Logtenberg, Boris Ranto, Dan Mick, Sandon Van Ness) * ceph_objectstore_tool: vastly improved and extended tool for working offline with OSD data stores (David Zafman) * common: add config diff admin socket command (Joao Eduardo Luis) * common: add rwlock assertion checks (Yehuda Sadeh) * crush: clean up CrushWrapper interface (Xioaxi Chen) * crush: make ruleset ids unique (Xiaoxi Chen, Loic Dachary) * doc: improve manual install docs (Francois Lafont) * doc: misc updates (John Wilkins, Loic Dachary, David Moreau Simard, Wido den Hollander. Volker Voigt, Alfredo Deza, Stephen Jahl, Dan van der Ster) * global: write pid file even when running in foreground (Alexandre Oliva) * hadoop: improve tests (Huamin Chen, Greg Farnum, John Spray) * journaler: fix locking (Zheng, Yan) * librados, osd: return ETIMEDOUT on failed notify (Sage Weil) * librados: fix crash on read op timeout (#9362 Matthias Kiefer, Sage Weil) * librados: fix shutdown race (#9130 Sage Weil) * librados: fix watch reregistration on acting set change (#9220 Samuel Just) * librados: fix watch/notify test (#7934 David Zafman) * librados: give Objecter fine-grained locks (Yehuda Sadeh, Sage Weil, John Spray) * librados: lttng tracepoitns (Adam Crume) * librados: pybind: fix reads when \0 is present (#9547 Mohammad Salehe) * librbd: enforce cache size on read requests (Jason Dillaman) * librbd: handle blacklisting during shutdown (#9105 John Spray) * librbd: lttng tracepoints (Adam Crume) * lttng: tracing infrastructure (Noah Watkins, Adam Crume) * mailmap: updates (Loic Dachary, Abhishek Lekshmanan, M Ranga Swami Reddy) * many many coverity fixes, cleanups (Danny Al-Gaaf) * mds: adapt to new Objecter locking, give types to all Contexts (John Spray) * mds: add internal health checks (John Spray) * mds: avoid tight mon reconnect loop (#9428 Sage Weil) * mds: fix crash killing sessions (#9173 John Spray) * mds: fix ctime updates (#9514 Greg Farnum) * mds: fix replay locking (Yan, Zheng) * mds: fix standby-replay cache trimming (#8648 Zheng, Yan) * mds: give perfcounters meaningful names (Sage Weil) * mds: improve health reporting to monitor (John Spray) * mds: improve journal locking (Zheng, Yan) * mds: make max file recoveries tunable (Sage Weil) * mds: prioritize file recovery when appropriate (Sage Weil) * mds: refactor beacon, improve reliability (John Spray) * mds: restart on EBLACKLISTED (John Spray) * mds: track RECALL progress, report failure (#9284 John Spray) * mds: update segment references during journal write (John Spray, Greg Farnum) * mds: use meaningful names for clients (John Spray) * mds: warn clients which aren't revoking caps (Zheng, Yan, John Spray) * mon: add 'osd reweight-by-pg' command (Sage Weil, Guang Yang) * mon: add audit log for all admin commands (Joao Eduardo Luis) * mon: add cluster fingerprint (Sage Weil) * mon: avoid creating unnecessary rule on pool create (#9304 Loic Dachary) * mon: do not spam log (Aanchal Agrawal, Sage Weil) * mon: fix 'osd perf' reported latency (#9269 Samuel Just) * mon: fix double-free of old MOSDBoot (Sage Weil) * mon: fix op write latency perfcounter (#9217 Xinxin Shu) * mon: fix store check on startup (Joao Eduardo Luis) * mon: make paxos transaction commits asynchronous (Sage Weil) * mon: preload erasure plugins (#9153 Loic Dachary) * mon: prevent cache pools from being used directly by CephFS (#9435 John Spray) * mon: use user-provided ruleset for replicated pool (Xiaoxi Chen) * mon: verify available disk space on startup (#9502 Joao Eduardo Luis) * mon: verify erasure plugin version on load (Loic Dachary) * msgr: fix logged address (Yongyue Sun) * osd: account for hit_set_archive bytes (Sage Weil) * osd: add ISA erasure plugin table cache (Andreas-Joachim Peters) * osd: add ability to prehash filestore directories (Guang Yang) * osd: add feature bit for erasure plugins (Loic Dachary) * osd: add local recovery code (LRC) erasure plugin (Loic Dachary) * osd: cap hit_set size (#9339 Samuel Just) * osd: clear FDCache on unlink (#8914 Loic Dachary) * osd: do not evict blocked objects (#9285 Zhiqiang Wang) * osd: fix ISA erasure alignment (Loic Dachary, Andreas-Joachim Peters) * osd: fix clone vs cache_evict bug (#8629 Sage Weil) * osd: fix crash from duplicate backfill reservation (#8863 Sage Weil) * osd: fix dead peer connection checks (#9295 Greg Farnum, Sage Weil) * osd: fix keyvaluestore scrub (#8589 Haomai Wang) * osd: fix keyvaluestore upgrade (Haomai Wang) * osd: fix min_read_recency_for_promote default on upgrade (Zhiqiang Wang) * osd: fix mount/remount sync race (#9144 Sage Weil) * osd: fix purged_snap initialization on backfill (Sage Weil, Samuel Just, Dan van der Ster, Florian Haas) * osd: fix race condition on object deletion (#9480 Somnath Roy) * osd: fix snap object writeback from cache tier (#9054 Samuel Just) * osd: improve journal shutdown (Ma Jianpeng, Mark Kirkwood) * osd: improve locking in OpTracker (Pavan Rallabhandi, Somnath Roy) * osd: improve tiering agent arithmetic (Zhiqiang Wang, Sage Weil, Samuel Just) * osd: lttng tracepoints for filestore (Noah Watkins) * osd: make blacklist encoding deterministic (#9211 Sage Weil) * osd: many many important fixes (#8231 #8315 #9113 #9179 #9293 #9294 #9326 #9453 #9481 #9482 #9497 #9574 Samuel Just) * osd: misc erasure code plugin fixes (Loic Dachary) * osd: preload erasure plugins (#9153 Loic Dachary) * osd: shard OpTracker to improve performance (Somnath Roy) * osd: use local time for tiering decisions (Zhiqiang Wang) * osd: verify erasure plugin version on load (Loic Dachary) * rados: fix bench write arithmetic (Jiangheng) * rbd: parallelize rbd import, export (Jason Dillaman) * rbd: rbd-replay utility to replay captured rbd workload traces (Adam Crume) * rbd: use write-back (not write-through) when caching is enabled (Jason Dillaman) * rgw: add S3 bucket get location operation (Abhishek Lekshmanan) * rgw: add civetweb as default frontent on port 7490 (#9013 Yehuda Sadeh) * rgw: allow : in S3 access key (Roman Haritonov) * rgw: fix admin create user op (#8583 Ray Lv) * rgw: fix log filename suffix (#9353 Alexandre Marangone) * rgw: fix usage (Abhishek Lekshmanan) * rgw: many fixes for civetweb (Yehuda Sadeh) * rgw: subuser creation fixes (#8587 Yehuda Sadeh) * rgw: use systemd-run from sysvinit script (JuanJose Galvez) * unit test improvements (Loic Dachary) * vstart.sh: fix/improve rgw support (Luis Pabon, Abhishek Lekshmanan) Getting Ceph ------------ * Git at git://github.com/ceph/ceph.git * Tarball at http://ceph.com/download/ceph-0.86.tar.gz * For packages, see http://ceph.com/docs/master/install/get-packages * For ceph-deploy, see http://ceph.com/docs/master/install/install-ceph-deploy _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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