RADOS for Eucalyptus
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Describing "RADOS for Eucalyptus", a distributed storage implementation for Eucalyptus based on Ceph Filesystem technology.
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RADOS for Eucalyptus
- 1. RADOS for Eucalyptus <tasada@livedoor.jp>
- 2. RADOS for Eucalyptus • Eucalyptus IaaS •
- 3. IaaS • Infrastructure as a Service • Web … Web • Amazon Web Services
- 4. Amazon EC2 • Web Linux Solaris Windows VM • EC2 → S3 • VM S3
- 5. Amazon S3 • Web • REST/SOAP API • • 1020 2010/03
- 6. Amazon EBS • EC2 → •
- 7. Eucalyptus • IaaS • Amazon EC2, S3, EBS API →Amazon • • •
- 8. Eucalyptus Cloud Controller Walrus S3 Cluster Storage Cluster Storage Controller Controller Controller Controller Node EBS Node Node Controller Node Controller Node Controller Node Controller Controller Controller VM
- 9. Eucalyptus • • Walrus(S3 ) • SC(EBS )
- 10. Eucalyptus • • Ceph Filesystem • • S3 EBS like
- 11. Ceph Filesystem • • POSIX ”mount ” • Ceph Filesystem • • •
- 12. Ceph Filesystem
- 13. • • • • • etc..
- 14. RADOS • • Reliable, Autonomic Distributed Object Store • ≠ • • etc... •
- 15. RADOS OSD IO Monitor OSD OSD IO
- 16. ~100PG/ OSD PG OSD ” ”
- 17. CRUSH • PG OSD • HDD OSD → •
- 18. • OSD up down IP • PG • OSD Monitor • Monitor down
- 19. RADOS API • RADOS • pool API open_pool(), close_pool(), lookup_pool(), create_pool(), delete_pool(), list_pools(), get_pool_stats() • API create(), write(), read(), remove(), trunk(), getxattr(), setxattr(), stat(), list_objects_open(), list_objects_more(), list_objects_close() • API IO API etc...
- 20. RADOS API • radosgw: S3 • rbd: • S3 EBS
- 21. RADOS for Eucalyptus • Walrus/SC RADOS • Walrus • (radosgw, rbd...)
- 22. Before Cloud Walrus Controller Cluster Storage Cluster Storage Controller Controller Controller Controller Node Node Node Controller Node Controller Node Controller Node Controller Controller Controller
- 23. After Cloud Walrus Controller Walrus Walrus Cluster Storage Cluster Storage Controller Controller Controller Controller Node Node Node Controller Node Controller Node Controller Node Controller Controller Controller RADOS Cluster
- 24. RADOS for Walrus • • radosgw Eucalyptus • Walrus RADOS •
- 25. • RADOS API C/C++ Java JNI • File/FileInputStream/FileOutputStream RADOS API
- 26. • RADOS • • •
- 27. • :,( • RADOS
- 28. (MB/s) 90.0 67.5 40% 70% LocalFS 45.0 RADOS 60% Walrus(LocalFS) Walrus(RADOS) 22.5 0
- 29. (MB/s) 90.0 67.5 40% 70% LocalFS 45.0 RADOS 60% Walrus(LocalFS) Walrus(RADOS) 22.5 0 Web RADOS
- 30. 60 Per!OSD Throughput 50 40 (MB/sec) 30 20 no replication 2x replication 10 3x replication 0 4 16 64 256 1024 4096 Write Size (KB) 6.7: Per-OSD write performance. The horizontal line indicates the upper limit im Ceph physical disk. Replication has minimal impact on OSD throughput, although 60MB/s r of OSDs is fixed, n-way replication reduces total effective throughput by a facto e replicated data must be written to n OSDs.
- 31. 60 Per!OSD Throughput 50 40 (MB/sec) 30 20 no replication 2x replication 10 3x replication 0 4 16 64 256 1024 4096 Write Size (KB) 6.7: Per-OSD write performance. The horizontal line indicates the upper limit im Ceph physical disk. Replication has minimal impact on OSD throughput, although 60MB/s r of OSDs is fixed, n-way replication reduces total effective throughput by a facto e replicated data must be written to n OSDs.
- 32. • RADOS Walrus • Ceph Eucalyptus • rbd Eucalyptus
- 33. URL • Wiki: http://r4eucalyptus.wikia.com • Repository: bzr branch lp:~syuu/eucalyptus/rados4eucalyptus-2.0.0