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シリコンバレーに行ってきた!

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CassandraSF2011でMyCassandraの宣伝目的に一週間シリコンバレーに行ってきました。その他にも幾つかの会社をアポとって回ったので、その体験記を公開します。

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シリコンバレーに行ってきた!

  1. 1. Shunsuke Nakamura
  2. 2. musiciansgoogle, facebook, twitter, ....
  3. 3. ...
  4. 4. MyCassandra
  5. 5. → San Francisco 7/10 16:05 SF 9:22 (9 ) -16 SF( − ) ( )
  6. 6. San FranciscoJapan: 25-33℃, hot and wetSF: 13-20℃, coolT + or
  7. 7. 1 : , Pre-Cassandra SF Happy Hour2 : Cassandra SF 2011 ←3 : , Twitter , Pier 39, Thanh Long4 : Fishermans Wharf, , PARC , Facebook , Stanford Shopping Center, Castro St.5 : ITOCHU Technology , Google , Computer History Museum, Santana Row6 : Stanford University, Apple , Hacker Dojo , , Hacker Dojo Happy Hour7 :
  8. 8. Rodeway Inn Civic Center / 2 days1 : , Pre-Cassandra SF Happy Hour2 : Cassandra SF 2011 ← Aida Plaza Hotel / 1 day3 : , Twitter , Pier 39, Thanh Long4 : Fishermans Wharf, , PARC , Facebook , Stanford Shopping Center, Castro St. Country Inn / 3 days5 : ITOCHU Technology , Google , Computer History Museum, Santana Row6 : Stanford University, Apple , Hacker Dojo , , Hacker Dojo Happy Hour7 :
  9. 9. Pre-Cassandra SF Happy Hour
  10. 10. Fresh and ChallengingFresh so cool and beautiful cultureChaenging time difference english food (good but... large amount and junky foods)
  11. 11. Pre-Cassandra SF Happy HourAcunu (U.K. start up venture)@Thirsty Bear ( )MyCassandra ... 2, 3
  12. 12. 2Cassandra SF
  13. 13. Cassandra SF 2011@Misson Bay Conference Centeter hosting: DataStax
  14. 14. Cassandra SF 20112 Cassandra450 + Datastax, Netflix, Twitter, Acunu, Apple, Github, Lucasfilm, Yahoo, Ooyala, Cisco, VMWare,IBM Research, PayPal, Zynga, AMD, Redhat, 10gen, Rackspace, McAfee, Gemini Mobile, Ebay FB orz (GSoC Cassandra ) : http://www.datastax.com/events/cassandrasf2011/presentations
  15. 15. The State of Cassandra 2011Jonathan Eis, DataStax CTOCassandra multi-master, multi-DCCassandra : 18 Cassandra : variable consistent level, secondary index, atomic counter : memtable GC, compaction, read performance 0.6 → 0.7Roadmap to 1.0
  16. 16. Cassandra at Twitter Chris Goffinet, Twitter Slide: http://www.scribd.com/doc/59830692/Cassandra-at-Twitter FileSystem and I/O Schedulers 300+ nodes in production Twitter Cassandra1. Tweet Button: Cassandra memcache •Memory aocation delays causing JVM to encounter higher latency GC coections2. Cuckoo: Ganglia (1.3 mi. writes/sec, 112 bn. writes/day,492G of new data /h, 140MB/s writes + 70MB/s reads across cluster) YCSB Custom Framework
  17. 17. CQL/Counters 40Counter Vector clock write flow MyCassandra (((( Д ))))
  18. 18. Replacing Datacenter Oracle withGlobal Apache Cassandra on AWSAdrian Cockcro0, netflixOracle on DC → Cassandra on AWSTransitional steps Bidirectional Replication Oracle to SimpleDB Queued reverse path using SQS Backups remain in DC via OracleCassandra N=3 per zone consistency level ONE: ~ 1 ms Quorum: ~ 3ms Remote Copies: region Backups: Full backup / Incremental / Continuous
  19. 19. ( )Jonathan Eis 2MyCassandra brochure
  20. 20. Brisk/SolandraJake Lucini, DataStax MyCassandra GuyBrisk Hadoop Cassandra OLTP, OLAPSolanadra (Cassandra + Solr) Lucandra (Cassandra + Lucene) Thri1 + Order Partitioner Token+ Partitioner
  21. 21. Cassandra InternalsGary Dasbabek, Rackspace CassandraCassandra ( )Cassandra changes line 0.4 (2009/09) : 43 kploc 0.5 (2010/01) : 59 kploc 0.6 (2010/04): 73 kploc (ploc = physical lines of code) 0.7 (2011/01): 122 kploc 0.8 (2011/04): 146 kploc avg. 4,500 lines / month trunk (yesterday): 149kploc
  22. 22. LT ... ...
  23. 23. Afterparty and Hackathon@Mighty orz
  24. 24. , Twitter, Pier 39, Thanh Long
  25. 25. : : Aida Plaza Hotel w: Twitter with (Xoogler, UX ) Twitter CassandraNetflix AWS G/F/TwitterTwitter OSS
  26. 26. OracleFisherman’s Wharf, , PARC , Facebook, StanFord Shopping Center, Castro St
  27. 27. 4 : : Fisherman’s Wharf + IN-N-OUT : , Global Catalyst Partners Oracle VC JTPA DC Sound HoundJohn Tripier , PARCFacebook ( )Stanford Shopping Center: Stanford : Castro St.
  28. 28. 5ITOCHU Technology, Google, Computer History Museum, Santana Row
  29. 29. 5ITOCHU Technology ⇒ ITGoogle MTV MTV Buzz Google Google Google MTV
  30. 30. Computer History Museum 1 Cray-1, 2, 3 Google JJ-XX ”JJ” a JJ 26*10+10 = 270
  31. 31. Stanford 6Stanford University, Apple, , Hacker Dojo Happy Hour
  32. 32. 6Stanford Univ. 30 w Bookstore Hadoop NoSQL Ruby, Python Perl 2 Tanenbaum NagiosApple ( )
  33. 33. Letternal ... ( )MTV ...
  34. 34. Hacker Dojo Happy HourHacker ( StarUp ) MyCassandra ( ) MongoDB dis try ...
  35. 35. SF cool Tokyo hot&wet SF ( )
  36. 36. /

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