This document provides an overview and update on the Ceph community and development. It discusses the recent Hammer release, ongoing development work on CephFS and librados, upcoming Ceph Days and hackathons, metrics on community growth, and governance initiatives like the User Committee. It also covers deployment tools, the release cycle, and thanks attendees.

1. Ceph Status && Community Update
Ceph Day Berlin 2015

2. COMMUNITY
DEV
 Hammer
 Modules
 Orchestration / Deployment
 Release Cycle
QUESTIONS
AGENDA
2

3. COMMUNITY

4.  Focused on being non-disruptive
 RHEL / Fedora / CentOS coverage
 Maintaining Ubuntu / SUSE coverage
 Co-Existing with Gluster
 Bi-directional learning is fun!
LIVING IN A POST-ACQUISITION
WORLD
4

5. CEPH DAYS
 You’re here!
 Turning up the heat
 100% Community-focused
 Upcoming
 Beijing
 Bay Area
 Los Angeles
 Chicago
 Autstin
 Melbourne
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6.  Hosted by Intel in Hillsboro, OR
 10-13 Aug
 <25 people
 Real work!
 Performance (Mark Nelson)
 RBD focus
 RGW features and integration
 Spread the word!
 Email pmcgarry@redhat.com
Copyright © 2013 by Inktank | Private and Confidential
Ceph Hackathon
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7. METRICS
7
 Bitergia Platform
 New Quarterly View
 Community-driven
 Good growth
 Code/Tracker/IRC/Lists
 Continuing to evolve

8. USER COMMITTEE
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 Started after Dumpling
 Current chair: Eric Mourgaya
 Periodic meetings to discuss community matters
 Most recently:
 Release cadence
 Contributor credits
 Meetups
 RADOS Gateway use cases
 Discuss upcoming work
 First steps towards broader governance

9. Google Summer of Code
9
 Ceph project’s second year
 6 slots, used 4
 Last year
 Wireshark
 Reliability Model
 Work published on Ceph wiki
 Outreachy too
 Get involved!

10. CentOS Storage SIG
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 Creating a collection of packages
 http://wiki.centos.org/SpecialIntere
stGroup/Storage/Proposal
 Easier to deploy CentOS as a
storage node
 Early days
 Packages for Ceph & Gluster
 Get involved!

11. GOVERNANCE
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We haven’t forgotten about you!

12. CEPH DEVELOPER SUMMIT
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 Quarterly developer summit
 100% online (Blue Jeans / IRC)
 Infernalis summit just completed
 Videos on Ceph YouTube
channel
 Next up: “J”

13. DEVELOPMENT

14. HAMMER STATUS
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 Released 13 Apr 2015
 Major Features:
 cephfs: journal scavenger repair tool (John Spray)
 crush: new and improved straw2 bucket type (Sage Weil,
Christina Anderson, Xiaoxi Chen)
 doc: improved guidance for CephFS early adopters (John
Spray)
 librbd: add per-image object map for improved performance
(Jason Dillaman)
 librbd: copy-on-read (Min Chen, Li Wang, Yunchuan Wen,
Cheng Cheng)
 librados: fadvise-style IO hints (Jianpeng Ma)
 mds: many many snapshot-related fixes (Yan, Zheng)
 mon: new ‘ceph osd df’ command (Mykola Golub)
 mon: new ‘ceph pg ls …’ command (Xinxin Shu)
 osd: improved performance for high-performance backends
 osd: improved recovery behavior (Samuel Just)
 osd: improved cache tier behavior with reads (Zhiqiang
Wang)
 rgw: S3-compatible bucket versioning support (Yehuda
Sadeh)
 rgw: large bucket index sharding (Guang Yang, Yehuda
Sadeh)
 RDMA “xio” messenger support (Matt Benjamin, Vu Pham)

15. CephFS
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 Lots of hard work!
 Dogfooding
 Code
 Src/mds: 366 commits, 19,417 lines added/removed
 Src/client: 131 commits, 4289 lines
 Src/tools/cephfs: 41 commits, 4179 lines
 Ceph-qa-suite: 4842 added lines of FS-related python
 Tracker
 108 FS tickets resolved since Firefly (of which 97 were created
since Firefly)
 83 ticket currently open for FS, of which 35 were created since
Firefly
 31 feature tickets resolved

16. librados
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 Many more deployments/apps using direct librados
 Native library for accessing RADOS
 Librados.so shared library
 C, C++, Python, Erlang, Haskell, PHP, Java (JNA)
 Direct data path to storage nodes
 Speaks native Ceph protocol with cluster
 Exposes
 Mutable objects
 Rich per-object API and data model
 Hides
 Data distribution, migration, replication, failures

17.  Making your intelligent nodes, intelligent-er!
 Allows you to dynamically extend objects in RADOS
 Examples
 MD5 hash
 Image thumbnail service
 Log post-processing
 Whatever you build!
 Uses LUA
 Ask Noah!
Copyright © 2013 by Inktank | Private and Confidential
Object Classes
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18. DEPLOYMENT / ORCHESTRATION
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 Ceph-deploy in a good place
 Chef / Puppet / Ansible / Salt / Juju
 Docker is the up-and-comer
 Ask Chris!

19. RELEASE CYCLE COMMS
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 Increased communication requested (user committee)
 Alternating releases (ex: emperor vs firefly)
 Product vs upstream church and state

20. THANK YOU!
Patrick McGarry
Dir Ceph Community
pmcgarry@
redhat.com
@scuttlemonkey