v9.0.1 released
 sage
This development release is delayed a bit due to tooling changes in the build environment. As a result the next one (v9.0.2) will have a bit more work than is usual.
Highlights here include lots of RGW Swift fixes, RBD feature work surrounding the new object map feature, more CephFS snapshot fixes, and a few important CRUSH fixes.
NOTABLE CHANGES ¶
- auth: cache/reuse crypto lib key objects, optimize msg signature check (Sage Weil)
 - build: allow tcmalloc-minimal (Thorsten Behrens)
 - build: do not build ceph-dencoder with tcmalloc (#10691 Boris Ranto)
 - build: fix pg ref disabling (William A. Kennington III)
 - build: install-deps.sh improvements (Loic Dachary)
 - build: misc fixes (Boris Ranto, Ken Dreyer, Owen Synge)
 - ceph-authtool: fix return code on error (Gerhard Muntingh)
 - ceph-disk: fix zap sgdisk invocation (Owen Synge, Thorsten Behrens)
 - ceph-disk: pass –cluster arg on prepare subcommand (Kefu Chai)
 - ceph-fuse, libcephfs: drop inode when rmdir finishes (#11339 Yan, Zheng)
 - ceph-fuse,libcephfs: fix uninline (#11356 Yan, Zheng)
 - ceph-monstore-tool: fix store-copy (Huangjun)
 - common: add perf counter descriptions (Alyona Kiseleva)
 - common: fix throttle max change (Henry Chang)
 - crush: fix crash from invalid ‘take’ argument (#11602 Shiva Rkreddy, Sage Weil)
 - crush: fix divide-by-2 in straw2 (#11357 Yann Dupont, Sage Weil)
 - deb: fix rest-bench-dbg and ceph-test-dbg dependendies (Ken Dreyer)
 - doc: document region hostnames (Robin H. Johnson)
 - doc: update release schedule docs (Loic Dachary)
 - init-radosgw: run radosgw as root (#11453 Ken Dreyer)
 - librados: fadvise flags per op (Jianpeng Ma)
 - librbd: allow additional metadata to be stored with the image (Haomai Wang)
 - librbd: better handling for dup flatten requests (#11370 Jason Dillaman)
 - librbd: cancel in-flight ops on watch error (#11363 Jason Dillaman)
 - librbd: default new images to format 2 (#11348 Jason Dillaman)
 - librbd: fast diff implementation that leverages object map (Jason Dillaman)
 - librbd: fix snapshot creation when other snap is active (#11475 Jason Dillaman)
 - librbd: new diff_iterate2 API (Jason Dillaman)
 - librbd: object map rebuild support (Jason Dillaman)
 - logrotate.d: prefer service over invoke-rc.d (#11330 Win Hierman, Sage Weil)
 - mds: avoid getting stuck in XLOCKDONE (#11254 Yan, Zheng)
 - mds: fix integer truncateion on large client ids (Henry Chang)
 - mds: many snapshot and stray fixes (Yan, Zheng)
 - mds: persist completed_requests reliably (#11048 John Spray)
 - mds: separate safe_pos in Journaler (#10368 John Spray)
 - mds: snapshot rename support (#3645 Yan, Zheng)
 - mds: warn when clients fail to advance oldest_client_tid (#10657 Yan, Zheng)
 - misc cleanups and fixes (Danny Al-Gaaf)
 - mon: fix average utilization calc for ‘osd df’ (Mykola Golub)
 - mon: fix variance calc in ‘osd df’ (Sage Weil)
 - mon: improve callout to crushtool (Mykola Golub)
 - mon: prevent bucket deletion when referenced by a crush rule (#11602 Sage Weil)
 - mon: prime pg_temp when CRUSH map changes (Sage Weil)
 - monclient: flush_log (John Spray)
 - msgr: async: many many fixes (Haomai Wang)
 - msgr: simple: fix clear_pipe (#11381 Haomai Wang)
 - osd: add latency perf counters for tier operations (Xinze Chi)
 - osd: avoid multiple hit set insertions (Zhiqiang Wang)
 - osd: break PG removal into multiple iterations (#10198 Guang Yang)
 - osd: check scrub state when handling map (Jianpeng Ma)
 - osd: fix endless repair when object is unrecoverable (Jianpeng Ma, Kefu Chai)
 - osd: fix pg resurrection (#11429 Samuel Just)
 - osd: ignore non-existent osds in unfound calc (#10976 Mykola Golub)
 - osd: increase default max open files (Owen Synge)
 - osd: prepopulate needs_recovery_map when only one peer has missing (#9558 Guang Yang)
 - osd: relax reply order on proxy read (#11211 Zhiqiang Wang)
 - osd: skip promotion for flush/evict op (Zhiqiang Wang)
 - osd: write journal header on clean shutdown (Xinze Chi)
 - qa: run-make-check.sh script (Loic Dachary)
 - rados bench: misc fixes (Dmitry Yatsushkevich)
 - rados: fix error message on failed pool removal (Wido den Hollander)
 - radosgw-admin: add ‘bucket check’ function to repair bucket index (Yehuda Sadeh)
 - rbd: allow unmapping by spec (Ilya Dryomov)
 - rbd: deprecate –new-format option (Jason Dillman)
 - rgw: do not set content-type if length is 0 (#11091 Orit Wasserman)
 - rgw: don’t use end_marker for namespaced object listing (#11437 Yehuda Sadeh)
 - rgw: fail if parts not specified on multipart upload (#11435 Yehuda Sadeh)
 - rgw: fix GET on swift account when limit == 0 (#10683 Radoslaw Zarzynski)
 - rgw: fix broken stats in container listing (#11285 Radoslaw Zarzynski)
 - rgw: fix bug in domain/subdomain splitting (Robin H. Johnson)
 - rgw: fix civetweb max threads (#10243 Yehuda Sadeh)
 - rgw: fix copy metadata, support X-Copied-From for swift (#10663 Radoslaw Zarzynski)
 - rgw: fix locator for objects starting with _ (#11442 Yehuda Sadeh)
 - rgw: fix mulitipart upload in retry path (#11604 Yehuda Sadeh)
 - rgw: fix quota enforcement on POST (#11323 Sergey Arkhipov)
 - rgw: fix return code on missing upload (#11436 Yehuda Sadeh)
 - rgw: force content type header on responses with no body (#11438 Orit Wasserman)
 - rgw: generate new object tag when setting attrs (#11256 Yehuda Sadeh)
 - rgw: issue aio for first chunk before flush cached data (#11322 Guang Yang)
 - rgw: make read user buckets backward compat (#10683 Radoslaw Zarzynski)
 - rgw: merge manifests properly with prefix override (#11622 Yehuda Sadeh)
 - rgw: return 412 on bad limit when listing buckets (#11613 Yehuda Sadeh)
 - rgw: send ETag, Last-Modified for swift (#11087 Radoslaw Zarzynski)
 - rgw: set content length on container GET, PUT, DELETE, HEAD (#10971, #11036 Radoslaw Zarzynski)
 - rgw: support end marker on swift container GET (#10682 Radoslaw Zarzynski)
 - rgw: swift: fix account listing (#11501 Radoslaw Zarzynski)
 - rgw: swift: set content-length on keystone tokens (#11473 Herv Rousseau)
 - rgw: use correct oid for gc chains (#11447 Yehuda Sadeh)
 - rgw: use unique request id for civetweb (#10295 Orit Wasserman)
 - rocksdb, leveldb: fix compact_on_mount (Xiaoxi Chen)
 - rocksdb: add perf counters for get/put latency (Xinxin Shu)
 - rpm: add suse firewall files (Tim Serong)
 - rpm: misc systemd and suse fixes (Owen Synge, Nathan Cutler)
 
GETTING CEPH ¶
- Git at git://github.com/ceph/ceph.git
 - Tarball at http://ceph.com/download/ceph-9.0.1.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