v17.2.0 Quincy released
Quincy is the 17th stable release of Ceph. It is named after Squidward Quincy Tentacles from Spongebob Squarepants.
This is the first stable release of Ceph Quincy.
- Major Changes from Pacific
- Upgrading from Octopus or Pacific
- Upgrading from pre-Octopus releases (like Nautilus)
- Thank You to Our Contributors
Major Changes from Pacific ¶
Filestore has been deprecated in Quincy. BlueStore is Ceph's default object store.
ceph-mgr-modules-coredebian package no longer recommends
python3-numpy, which cannot be imported in different Python sub-interpreters multiple times when the version of
python3-numpyis older than 1.19. Because
Recommendspackages by default,
ceph-mgr-rookwas always installed along with the
ceph-mgrdebian package as an indirect dependency. If your workflow depends on this behavior, you might want to install
device_health_metricspool has been renamed
.mgr. It is now used as a common store for all
ceph-mgrmodules. After upgrading to Quincy, the
device_health_metricspool will be renamed to
.mgron existing clusters.
ceph pg dumpcommand now prints three additional columns:
LAST_SCRUB_DURATIONshows the duration (in seconds) of the last completed scrub;
SCRUB_SCHEDULINGconveys whether a PG is scheduled to be scrubbed at a specified time, whether it is queued for scrubbing, or whether it is being scrubbed;
OBJECTS_SCRUBBEDshows the number of objects scrubbed in a PG after a scrub begins.
A health warning is now reported if the
require-osd-releaseflag is not set to the appropriate release after a cluster upgrade.
LevelDB support has been removed.
WITH_LEVELDBis no longer a supported build option. Users -should- migrate their monitors and OSDs to RocksDB before upgrading to Quincy.
osd_memory_target_autotuneis enabled by default, which sets
0.7of total RAM. This is unsuitable for hyperconverged infrastructures. For hyperconverged Ceph, please refer to the documentation or set
telemetry: Improved the opt-in flow so that users can keep sharing the same data, even when new data collections are available. A new 'perf' channel that collects various performance metrics is now avaiable to opt into with:
ceph telemetry on
ceph telemetry enable channel perfSee a sample report with
ceph telemetry preview. Note that generating a telemetry report with 'perf' channel data might take a few moments in big clusters. For more details, see: https://docs.ceph.com/en/quincy/mgr/telemetry/
MGR: The progress module disables the pg recovery event by default since the event is expensive and has interrupted other services when there are OSDs being marked in/out from the the cluster. However, the user can still enable this event anytime. For more detail, see https://docs.ceph.com/en/quincy/mgr/progress/
https://tracker.ceph.com/issues/55383 is a known issue.
mon_cluster_log_to_journaldneeds to be set to false when
mon_cluster_log_to_fileis set to true to continue to log cluster log messages to file after log rotation.
Colocation of Daemons (mgr, mds, rgw)
osd memory autotuning
Integration with new NFS mgr module
Ability to zap osds as they are removed
cephadm agent for increased performance/scalability
Day 1: the new "Cluster Expansion Wizard" will guide users through post-install steps: adding new hosts, storage devices or services.
NFS: the Dashboard now allows users to fully manage all NFS exports from a single place.
New mgr module (feedback): users can quickly report Ceph tracker issues or suggestions directly from the Dashboard or the CLI.
New "Message of the Day": cluster admins can publish a custom message in a banner.
Cephadm integration improvements:
- Host management: maintenance, specs and labelling,
- Service management: edit and display logs,
- Daemon management (start, stop, restart, reload),
- New services supported: ingress (HAProxy) and SNMP-gateway.
Monitoring and alerting:
- 43 new alerts have been added (totalling 68) improving observability of events affecting: cluster health, monitors, storage devices, PGs and CephFS.
- Alerts can now be sent externally as SNMP traps via the new SNMP gateway service (the MIB is provided).
- Improved integrated full/nearfull event notifications.
- Grafana Dashboards now use grafonnet format (though they're still available in JSON format).
- Stack update: images for monitoring containers have been updated. Grafana 8.3.5, Prometheus 2.33.4, Alertmanager 0.23.0 and Node Exporter 1.3.1. This reduced exposure to several Grafana vulnerabilities (CVE-2021-43798, CVE-2021-39226, CVE-2021-43798, CVE-2020-29510, CVE-2020-29511).
OSD: Ceph now uses
mclock_schedulerfor BlueStore OSDs as its default
osd_op_queueto provide QoS. The 'mclock_scheduler' is not supported for Filestore OSDs. Therefore, the default 'osd_op_queue' is set to
wpqfor Filestore OSDs and is enforced even if the user attempts to change it. For more details on configuring mclock see,
An outstanding issue exists during runtime where the mclock config options related to reservation, weight and limit cannot be modified after switching to the
custommclock profile using the
ceph config set ...command. This is tracked by https://tracker.ceph.com/issues/55153. Until the issue is fixed, users are advised to avoid using the 'custom' profile or use the workaround mentioned in the tracker.
MGR: The pg_autoscaler can now be turned
offglobally with the
noautoscaleflag. By default, it is set to
on, but this flag can come in handy to prevent rebalancing triggered by autoscaling during cluster upgrade and maintenance. Pools can now be created with the
--bulkflag, which allows the autoscaler to allocate more PGs to such pools. This can be useful to get better out of the box performance for data-heavy pools.
For more details about autoscaling, see: https://docs.ceph.com/en/quincy/rados/operations/placement-groups/
OSD: Support for on-wire compression for osd-osd communication,
For more details about compression modes, see: https://docs.ceph.com/en/quincy/rados/configuration/msgr2/#compression-modes
OSD: Concise reporting of slow operations in the cluster log. The old and more verbose logging behavior can be regained by setting
the "kvs" Ceph object class is not packaged anymore. The "kvs" Ceph object class offers a distributed flat b-tree key-value store that is implemented on top of the librados objects omap. Because there are no existing internal users of this object class, it is not packaged anymore.
RBD block storage ¶
rbd device attachand
rbd device detachcommands added, these allow for safe reattach after
rbd-nbddaemon is restarted since Linux kernel 5.14.
notrimmap option added to support thick-provisioned images, similar to krbd.
Large stabilization effort for client-side persistent caching on SSD devices, also available in 16.2.8. For details on usage, see https://docs.ceph.com/en/quincy/rbd/rbd-persistent-write-log-cache/
Several bug fixes in diff calculation when using fast-diff image feature + whole object (inexact) mode. In some rare cases these long-standing issues could cause an incorrect
rbd export. Also fixed in 15.2.16 and 16.2.8.
Fix for a potential performance degradation when running Windows VMs on krbd. For details, see
rxbouncemap option description: https://docs.ceph.com/en/quincy/man/8/rbd/#kernel-rbd-krbd-options
RGW object storage ¶
RGW now supports rate limiting by user and/or by bucket. With this feature it is possible to limit user and/or bucket, the total operations and/or bytes per minute can be delivered. This feature allows the admin to limit only READ operations and/or WRITE operations. The rate-limiting configuration could be applied on all users and all buckets by using global configuration.
radosgw-admin realm deletehas been renamed to
radosgw-admin realm rm. This is consistent with the help message.
S3 bucket notification events now contain an
eTagkey instead of
etag, and eventName values no longer carry the
s3:prefix, fixing deviations from the message format that is observed on AWS.
It is possible to specify ssl options and ciphers for beast frontend now. The default ssl options setting is "no_sslv2:no_sslv3:no_tlsv1:no_tlsv1_1". If you want to return to the old behavior, add 'ssl_options=' (empty) to the
The behavior for Multipart Upload was modified so that only CompleteMultipartUpload notification is sent at the end of the multipart upload. The POST notification at the beginning of the upload and the PUT notifications that were sent on each part are no longer sent.
CephFS distributed file system ¶
fs: A file system can be created with a specific ID ("fscid"). This is useful in certain recovery scenarios (for example, when a monitor database has been lost and rebuilt, and the restored file system is expected to have the same ID as before).
fs: A file system can be renamed using the
fs renamecommand. Any cephx credentials authorized for the old file system name will need to be reauthorized to the new file system name. Since the operations of the clients using these re-authorized IDs may be disrupted, this command requires the "--yes-i-really-mean-it" flag. Also, mirroring is expected to be disabled on the file system.
MDS upgrades no longer require all standby MDS daemons to be stoped before upgrading a file systems's sole active MDS.
CephFS: Failure to replay the journal by a standby-replay daemon now causes the rank to be marked "damaged".
Upgrading from Octopus or Pacific ¶
Quincy does not support LevelDB. Please migrate your OSDs and monitors to RocksDB before upgrading to Quincy.
Before starting, make sure your cluster is stable and healthy (no down or recovering OSDs). (This is optional, but recommended.) You can disable the autoscaler for all pools during the upgrade using the noautoscale flag.
Note: You can monitor the progress of your upgrade at each stage with the
ceph versions command, which will tell you what ceph version(s) are running for each type of daemon.
Upgrading cephadm clusters ¶
If your cluster is deployed with cephadm (first introduced in Octopus), then the upgrade process is entirely automated. To initiate the upgrade,
ceph orch upgrade start --ceph-version 17.2.0
The same process is used to upgrade to future minor releases.
Upgrade progress can be monitored with
ceph -s (which provides a simple progress bar) or more verbosely with
ceph -W cephadm
The upgrade can be paused or resumed with
ceph orch upgrade pause # to pause ceph orch upgrade resume # to resume
or canceled with
ceph orch upgrade stop
Note that canceling the upgrade simply stops the process; there is no ability to downgrade back to Octopus or Pacific.
Upgrading non-cephadm clusters ¶
Note: If you cluster is running Octopus (15.2.x) or later, you might choose to first convert it to use cephadm so that the upgrade to Quincy is automated (see above). For more information, see https://docs.ceph.com/en/quincy/cephadm/adoption/.
nooutflag for the duration of the upgrade. (Optional, but recommended.)
ceph osd set noout
Upgrade monitors by installing the new packages and restarting the monitor daemons. For example, on each monitor host,
systemctl restart ceph-mon.target
Once all monitors are up, verify that the monitor upgrade is complete by looking for the
quincystring in the mon map. The command
ceph mon dump | grep min_mon_release
min_mon_release 17 (quincy)
If it doesn't, that implies that one or more monitors hasn't been upgraded and restarted and/or the quorum does not include all monitors.
ceph-mgrdaemons by installing the new packages and restarting all manager daemons. For example, on each manager host,
systemctl restart ceph-mgr.target
ceph-mgrdaemons are running by checking
... services: mon: 3 daemons, quorum foo,bar,baz mgr: foo(active), standbys: bar, baz ...
Upgrade all OSDs by installing the new packages and restarting the ceph-osd daemons on all OSD hosts
systemctl restart ceph-osd.target
Upgrade all CephFS MDS daemons. For each CephFS file system,
ceph fs set <fs_name> allow_standby_replay false
Reduce the number of ranks to 1. (Make note of the original number of MDS daemons first if you plan to restore it later.)
ceph status # ceph fs set <fs_name> max_mds 1
Wait for the cluster to deactivate any non-zero ranks by periodically checking the status
Take all standby MDS daemons offline on the appropriate hosts with
systemctl stop ceph-mds@<daemon_name>
Confirm that only one MDS is online and is rank 0 for your FS
Upgrade the last remaining MDS daemon by installing the new packages and restarting the daemon
systemctl restart ceph-mds.target
Restart all standby MDS daemons that were taken offline
systemctl start ceph-mds.target
Restore the original value of
max_mdsfor the volume
ceph fs set <fs_name> max_mds <original_max_mds>
Upgrade all radosgw daemons by upgrading packages and restarting daemons on all hosts
systemctl restart ceph-radosgw.target
Complete the upgrade by disallowing pre-Quincy OSDs and enabling all new Quincy-only functionality
ceph osd require-osd-release quincy
If you set
nooutat the beginning, be sure to clear it with
ceph osd unset noout
Consider transitioning your cluster to use the cephadm deployment and orchestration framework to simplify cluster management and future upgrades. For more information on converting an existing cluster to cephadm, see https://docs.ceph.com/en/quincy/cephadm/adoption/.
Verify the cluster is healthy with
ceph health. If your cluster is running Filestore, a deprecation warning is expected. This warning can be temporarily muted using the following command
ceph health mute OSD_FILESTORE
If you are upgrading from Mimic, or did not already do so when you upgraded to Nautilus, we recommend you enable the new v2 network protocol <msgr2>, issue the following command
ceph mon enable-msgr2
This will instruct all monitors that bind to the old default port 6789 for the legacy v1 protocol to also bind to the new 3300 v2 protocol port. To see if all monitors have been updated,
ceph mon dump
and verify that each monitor has both a
Consider enabling the telemetry module to send anonymized usage statistics and crash information to the Ceph upstream developers. To see what would be reported (without actually sending any information to anyone),
ceph telemetry preview-all
If you are comfortable with the data that is reported, you can opt-in to automatically report the high-level cluster metadata with
ceph telemetry on
The public dashboard that aggregates Ceph telemetry can be found at https://telemetry-public.ceph.com/.
Upgrading from pre-Octopus releases (like Nautilus) ¶
Thank You to Our Contributors ¶
The Quincy release would not be possible without the contributions of the community:
Kefu Chai ▪ Sage Weil ▪ Sebastian Wagner ▪ Yingxin Cheng ▪ Samuel Just ▪ Radoslaw Zarzynski ▪ Patrick Donnelly ▪ Ilya Dryomov ▪ Michael Fritch ▪ Xiubo Li ▪ Casey Bodley ▪ Myoungwon Oh ▪ Adam King ▪ Zac Dover ▪ Venky Shankar ▪ Xuehan Xu ▪ Laura Flores ▪ Adam Kupczyk ▪ Varsha Rao ▪ Paul Cuzner ▪ Ronen Friedman ▪ Joseph Sawaya ▪ Igor Fedotov ▪ Nizamudeen A ▪ Neha Ojha ▪ Yehuda Sadeh ▪ Adam C. Emerson ▪ Daniel Gryniewicz ▪ Deepika Upadhyay ▪ Sridhar Seshasayee ▪ Guillaume Abrioux ▪ Rishabh Dave ▪ J. Eric Ivancich ▪ Soumya Koduri ▪ Alfonso Martínez ▪ Pere Diaz Bou ▪ Jason Dillaman ▪ Lucian Petrut ▪ Amnon Hanuhov ▪ chunmei-liu ▪ Greg Farnum ▪ Mykola Golub ▪ Josh Durgin ▪ Daniel Pivonka ▪ Marcus Watts ▪ Kotresh HR ▪ Yuval Lifshitz ▪ Matt Benjamin ▪ Ken Iizawa ▪ Ernesto Puerta ▪ Aashish Sharma ▪ Or Ozeri ▪ Pritha Srivastava ▪ Jeff Layton ▪ Igor Fedotov ▪ Yin Congmin ▪ Dimitri Savineau ▪ Avan Thakkar ▪ Yuri Weinstein ▪ Yaarit Hatuka ▪ Kamoltat ▪ David Galloway ▪ Abutalib Aghayev ▪ Patrick Seidensal ▪ Arthur Outhenin-Chalandre ▪ Willem Jan Withagen ▪ Kalpesh Pandya ▪ Avan Thakkar ▪ Nathan Cutler ▪ 胡玮文 ▪ Jos Collin ▪ Melissa ▪ Ma Jianpeng ▪ Brad Hubbard ▪ Juan Miguel Olmo Martínez ▪ Dan van der Ster ▪ wangyunqing ▪ Prasanna Kumar Kalever ▪ Chunsong Feng ▪ Mark Kogan ▪ Sébastien Han ▪ Ken Dreyer ▪ John Mulligan ▪ Jinyong Ha ▪ galsalomon66 ▪ Anthony D'Atri ▪ Ramana Raja ▪ Navin Barnwal ▪ Huber-ming ▪ Gabriel BenHanokh ▪ Omri Zeneva ▪ Melissa Li ▪ haoyixing ▪ Cory Snyder ▪ Yongseok Oh ▪ Prashant D ▪ Matan Breizman ▪ Dan Mick ▪ Benoît Knecht ▪ Sunny Kumar ▪ Milind Changire ▪ Melissa Li ▪ Jonas Pfefferle ▪ jianglong01 ▪ Feng Hualong ▪ Duncan Bellamy ▪ cao.leilc ▪ Aishwarya Mathuria ▪ Aaryan Porwal ▪ Yan, Zheng ▪ Xiaoyan Li ▪ wangyingbin ▪ Volker Theile ▪ Satoru Takeuchi ▪ Jiffin Tony Thottan ▪ Boris Ranto ▪ yuliyang_yewu ▪ XueYu Bai ▪ Mykola Golub ▪ Michael Wodniok ▪ Mark Nelson ▪ Jonas Jelten ▪ Etienne Menguy ▪ dependabot[bot] ▪ David Zafman ▪ Christopher Hoffman ▪ Ali Maredia ▪ YuanXin ▪ Waad AlKhoury ▪ Nikhilkumar Shelke ▪ Miaomiao Liu ▪ Luo Runbing ▪ Jan Fajerski ▪ Igor Fedotov ▪ gal salomon ▪ Aran85 ▪ zhipeng li ▪ Yuxiang Zhu ▪ yuval Lifshitz ▪ Yanhu Cao ▪ wangxinyu ▪ Tom Schoonjans ▪ Tatjana Dehler ▪ Simon Gao ▪ Sarthak Gupta ▪ Sandro Bonazzola ▪ Paul Reece ▪ Or Friedmann ▪ Misono Tomohiro ▪ Misono Tomohiro ▪ Matan Breizman ▪ Mahati Chamarthy ▪ Kyle ▪ Kalpesh ▪ João Eduardo Luís ▪ jhonxue ▪ Javier Cacheiro ▪ Hardik Vyas ▪ Deepika ▪ Danny Abukalam ▪ Dai Zhi Wei ▪ Curt Bruns ▪ Clément Péron ▪ Chunmei Liu ▪ Andrew Schoen ▪ Amnon Hanuhov ▪ 靳登科 ▪ Zulai Wang ▪ Yaakov Selkowitz ▪ Xinyu Huang ▪ weixinwei ▪ wanwencong ▪ wangzhong ▪ wangfei ▪ Waad Alkhoury ▪ Tongliang Deng ▪ Tim Serong ▪ Tao Dong Dong ▪ Sven Anderson ▪ Rafał Wądołowski ▪ Rachana Patel ▪ Paul Reece ▪ mengxiangrui ▪ Maya Gilad ▪ Mauricio Faria de Oliveira ▪ Manasvi Goyal ▪ luo rixin ▪ locallocal ▪ Liu Shi ▪ Kyr Shatskyy ▪ krunerge ▪ Kevin Zhao ▪ Kaleb S. Keithley ▪ Jianwei Zhang ▪ Jenkins ▪ Jeegn Chen ▪ Jan Fajerski ▪ Huang Jun ▪ Hualong Feng ▪ Gokcen Iskender ▪ Gerald Yang ▪ Eunice Lee ▪ Dimitri Papadopoulos ▪ dengchl01 ▪ Daniel-Pivonka ▪ cypherean ▪ Blaine Gardner ▪ Alex Wang ▪ Zulai Wang ▪ Zhi Zhang ▪ ZhenLiu94 ▪ Zhao Cuicui ▪ zhangmengqian_yw ▪ Zack Cerza ▪ Yunfei Guan ▪ yuliyang ▪ yaohui.zhou ▪ Yao guotao ▪ yanqiang-ux ▪ Yang Honggang ▪ wzbxqt ▪ Wong Hoi Sing Edison ▪ Will Smith ▪ weixinwei ▪ WeiGuo Ren ▪ wangyingbin ▪ wangtengfei ▪ Wang ShuaiChao ▪ wangbo-yw ▪ Vladimir Bashkirtsev ▪ VasishtaShastry ▪ Ushitora Anqou ▪ usageek1266 ▪ Thomas Lamprecht ▪ tancz1 ▪ Taha Jahangir ▪ Sven Wegener ▪ sunilkumarn417 ▪ Stephan Müller ▪ Stanislav Datskevych ▪ Srishti Guleria ▪ songtongshuai_yewu ▪ singuliere ▪ Sidharth Anupkrishnan ▪ Sheng Mao ▪ Sharuzzaman Ahmat Raslan ▪ Seongyeop Jeong ▪ Seena Fallah ▪ Sebastian Schmid ▪ Scott Shambarger ▪ Sandy Kaur ▪ Ruben Kerkhof ▪ Roland Sommer ▪ Rok Jaklič ▪ Roaa Sakr ▪ Rishabh Chawla ▪ Rahul Dev Parashar ▪ Rahul Dev Parashar ▪ Rachanaben Patel ▪ Pulkit Mittal ▪ Ponnuvel Palaniyappan ▪ Piotr Kubaj ▪ Pere Diaz Bou ▪ Peng Zhang ▪ Oleander Reis ▪ Niklas Hambüchen ▪ Ngwa Sedrick Meh ▪ Mumuni Mohammed ▪ Mitsumasa KONDO ▪ Mingxin Liu ▪ Mike Perez ▪ Mike Perez ▪ Michał Nasiadka ▪ mflehmig ▪ Matthew Vernon ▪ Matthew Cengia ▪ mark15213 ▪ Mara Sophie Grosch ▪ ManasviGoyal ▪ Malcolm Holmes ▪ Madhu Rajanna ▪ Lukas Stockner ▪ Ludwig Nussel ▪ Lorenz Bausch ▪ Loic Dachary ▪ Liyan Wang ▪ Liu Yang ▪ Liu Lan ▪ Lee Yarwood ▪ Kyle ▪ krafZLorG ▪ Kefu Chai ▪ karmab ▪ Kai Kang ▪ jshen28 ▪ Josh Salomon ▪ Josh ▪ Jonas Zeiger ▪ John Fulton ▪ John Bent ▪ Jinyong Ha ▪ Jingya Su ▪ jiawd ▪ jerryluo ▪ Jan "Yenya" Kasprzak ▪ Jan Horáček ▪ James Mcclune ▪ Injae Kang ▪ Ilsoo Byun ▪ hoamer ▪ Hargun Kaur ▪ haoyixing ▪ Grzegorz Wieczorek ▪ Girjesh Rajoria ▪ Gaurav Sitlani ▪ Francesco Pantano ▪ Foad Lind ▪ FengJiankui ▪ Felix Hüttner ▪ Erqi Chen ▪ Elena Chernikova ▪ Dmitriy Rabotyagov ▪ dheart ▪ Dennis Körner ▪ dengchl01 ▪ David Caro ▪ David Caro ▪ crossbears ▪ Chen Fan ▪ chenerqi ▪ chencan ▪ Burt Holzman ▪ Brian_P ▪ Bobby Alex Philip ▪ Aswin Toni ▪ Asbjørn Sannes ▪ Arunagirinadan Sudharshan ▪ Arjun Sharma ▪ Anuradha Kulkarni ▪ AndrewSharapov ▪ Anamika ▪ Almen Ng ▪ Alin Gabriel Serdean ▪ Alex Wu ▪ Akanksha Chaudhari ▪ Abutalib Aghayev ▪