1. What's New in Infernalis
The Rise of the Vampire Squid
By Bryan Stillwell & Ian Colle - February 9, 2016

2. Agenda Welcome (food/drinks) Introductions Presentations Q&A
What's New in Infernalis (Bryan Stillwell)
What's Coming in Jewel (Ian Colle)
Q&A
Discussions

3. Introductions
Who are you?
What brings you here today?

4. Future Meetup Ideas How you're using Ceph CephFS
RBD (RADOS Block Device)
RGW (RADOS Gateway)
RADOS
Monitoring (Calamari/VSP/Grafana)
Automation (Puppet/Ansible/Salt)
Cache Tiering
CRUSH
Performance Tuning
CBT (The Ceph Benchmarking Tool)

5. What's New in Infernalis (v9.2.x)

6. Old Version Numbering Codename Release Type Versions Argonaut Stable
0.48 ->
Bobtail
0.56 ->
Cuttlefish
0.61 ->
Dumpling
LTS
0.67 ->
Emperor
0.72 ->
Firefly
0.80 ->
Giant
0.87 ->
Hammer
0.94 ->

7. New Version Numbering x.y.z x
Stable release number (I == 9, J == 10, K == 11) y
0 = Development (early testers)
1 = Release Candidate (test clusters)
2 = Stable (production ready) z
Revision/Bugfix release

8. New Version Numbering Codename Type Versions Infernalis Stable 9.2.x
Jewel
10.2.x
Kraken
11.2.x
Note – all releases are Stable now. Removed concept of LTS.

9. General Improvements systemd (except for Ubuntu Trusty)
systemctl start ceph-osd*
systemctl stop
RedHat distros now have an SELinux policy

10. General Improvements Ceph daemons run as 'ceph' user
chown -R ceph:ceph /var/lib/ceph
Time consuming
Must be done on mon nodes as well
Problem with journals not getting chown'd
Reboots fix, but only if you're using GPT

11. RADOS Improvements Cache tier improvements
SHEC erasure coding no longer experimental
Unified queue for handling client IO, recovery, scrubbing, and snapshot trimming
Many ceph-objectstore-tool improvements
Cleanup of ObjectStore API to facilitate new backends like BlueStore
SHEC = Shingled Erasure Code contributed by Fujitsu (improves recovery efficiency)
ceph-objectstore-tool

12. RGW Improvements Added support for SWIFT expirations
Many SWIFT API compatibility improvements
SWIFT expirations work well for storing database backups for example

13. RBD Improvements The size argument now supports suffixes
Hammer (0.94.5):
Infernalis (9.2.0):
Default format also changed

14. RBD Improvements
The rbd du command now shows actual usage (quickly if fast-diff enabled)

15. RBD Improvements Many stability improvements to object-map
Can enable/disable object-map and exclusive-lock features dynamically
Object-map was added during the Hammer release cycle. It tracks which blocks of the image are actually allocated and where.

16. RBD Improvements
New rbd status command

17. RBD Improvements
You can now store user metadata and set persistent librbd options associated with individual images
Deep-flatten now supports snapshots
The export-diff tool is now faster (now uses aio)

18. CephFS Improvements Snapshots can now be renamed
Ongoing improvements around administration, diagnostics, and check and repair tools
Dramatic improvements around caching a revocation of client cache state due to unused inodes
The ceph-fuse client behaves better on 32bit hosts

19. What's Coming in Jewel (v10.2.x)

20. RADOS Improvements
Continuing to make scrubbing smarter (don’t scrub when the OSD is busy, if scrub starts, finish as quickly as possible)
Further ceph-objectstore-tool improvements
Still evaluating tcmalloc 2.4 vs jemalloc performance
BlueStore! – uses LevelDB for journaling – greatly improves performance of RADOS
Further Cache-tiering improvements (but still caveat emptor)

21. RGW Improvements NFS for RGW Multisite v2 Keystone v3 Support
Originally master-slave with sync agent, which only allowed writes in master location
Now master-master
Keystone v3 Support
Swift per tenant namespace
Static Web Hosting in S3 Bucket
Passes TEMPEST

22. RBD Improvements
Async RBD Mirroring
iSCSI integration

23. CephFS Improvements
Continued improvements around administration, diagnostics, and check and repair tools
Active-Passive MDS now considered tech preview
Stabilizing work on Active-Active

24. General
Moved from Ceph Developer Summit (CDS) every 3-4 months to Ceph Design Monthly (CDM) on the first Wed of each month, alternating between European and Asian friendly times
Next CDM 02MAR EST
Videos available here:

25. Questions?