Add a bit of ACID to Cassandra. Cassandra Summit EU 2014
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Zookeeper소개
- 1. Zookeeper 소개 javawork93@gmail.com 임영기
- 2. 제공하는 기능 • znode 생성 / 삭제 • 데이터(znode)를 트리 구조로 저장 • 데이터가 변경되면 구독자들에게 통보 • Ephemeral node • Sequence node
- 3. API • zoo_init • zoo_create • zoo_delete • zoo_exist • zoo_get_children • zoo_close • sync / async version
- 4. Global Configuration
- 5. Cluster 구성 • 서버가 구동되면서 자신을 등록 • Ephemeral node • 서버가 죽으면 자동으로 노드가 삭제됨
- 6. Cluster 구성 #1 Zookeeper Server zoo_create( ephemeral | sequence )
- 7. Cluster 구성 #2 Zookeeper Server server0001
- 8. Cluster 구성 #3 Zookeeper server server0001 server Server server0002 server0003
- 9. Cluster 구성 #4 Zookeeper server server0001 server Server server0002 server0003 zoo_get_children Client
- 10. Cluster 구성 #5 Zookeeper server server0001 server server server0002 server0003 connect Client
- 11. Cluster 구성 #6 Zookeeper server server0001 server server0003 server0002 server0003 Crash! ! Client
- 12. Cluster 구성 #7 Zookeeper server server0001 server0002 server0002 Client
- 13. 분산 Lock #1 Zookeeper server zoo_create( sequence ) server Client
- 14. 분산 Lock #2 Client0001 (working) Client0002 (wait) Zookeeper Client0001 Client0002 Client0003 Client0003 (wait)
- 15. 분산 Lock #3 Client0001 (working) Client0002 (waiting) Zookeeper Client0001 Client0002 Client0003 Client0003 (waiting) zoo_delete
- 16. 분산 Lock #4 Client0002 (waiting) Zookeeper Client0002 Client0003 Client0003 (waiting) Notify
- 17. 분산 Lock #5 Client0002 (working) Zookeeper Client0002 Client0003 Client0003 (wait)
- 18. Job Distribution #1 Zookeeper Producer zoo_create(sequence)
- 19. Job Distribution #2 Zookeeper Producer Consumer Job0001 Consumer Notify
- 20. Job Distribution #3 Zookeeper Producer Consumer Job0001 Consumer zoo_delete
- 21. Job Distribution #4 Zookeeper Producer ConsumerConsumer Success Fail Job0001
- 22. Job Distribution #5 Zookeeper Producer Consumer Consumer (working) Job0001
- 23. 그 밖에 • Barriers • Queues • Two-phased Commit • Leader Election
- 24. 단점 • Write가 많은 경우 성능 저하 • znode 용량 제한(1MB) • C Client driver(Windows)
- 25. Reference • http://zookeeper.apache.org/ • http://creatorw.tistory.com/category/분산처 리/주키퍼/ • http://helloworld.naver.com/helloworld/text yle/294797
