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                           2012/01/26 (thu) at                      2012 #1
                                                 /
                                     ichii@gree.co.jp / @ichii386




Thursday, January 26, 12
•
                           •               13F

                           •                                    7

                     •
                           •   MySQL, Solaris, ZFS, InfiniBand

                           •
                     •
                           •   perl,




Thursday, January 26, 12
•
                                       DB
                                FILE               KVS
                           hadoop?


                     •
                           •            pageview

                     •
                           •   phpmyadmin    SQL

Thursday, January 26, 12
•
                                                           pv.page=foo.gender=female.age=20
                           •   “foo”   20        pv

                           •                    iPhone

                           •                web



                     •                 :1   x         7

                           •                ID

                     •
                           •                              pv? pageview?

                           •
Thursday, January 26, 12
?
                     •                                  KVS

                           •              key
                                                                      pv {
                           •     key
                                                                             page: “foo”;
                     •                                                       gender: “female”;
                                                                             age: 20;
                           •                                          }


                     •           hash             O(1)



                     •                  mongoDB     ?

                     •     ...                                !

Thursday, January 26, 12
•

                                              3776




                     •     “key=   , value=3776      ”


Thursday, January 26, 12
(2)
                     •     : WolframAlpha




                     •
Thursday, January 26, 12
•                      key               serialize

                     •     key string                                           CREATE TABLE kvs (
                                                                                  date DATE,
                     •              key                                   KVS     key VARCHAR,
                                                                                  val DECIMAL,
               •       key string                                                UNIQUE KEY (date, key, val),
                                                                                 FULLTEXT KEY (key)
                     •                                              SVC         ) ENGINE=mroonga;


                                              pv.page=foo.gender=female.age=20
               •
                     •
                     •                      false positive

               •       “        key              KVS”


Thursday, January 26, 12
•          (key string           )

                           •   RDB               schema

                           •            schema less



                     •
                           •   schema                           : pageview

                           •         key                  key



                     •            MySQL                         JOIN         !

                           •                     MySQL

Thursday, January 26, 12
•                 key   KVS

                           •
                           •
                           •

                     •
                           •
                           •

                     •         MySQL         mongo   hadoop

                           •
Thursday, January 26, 12
:



                     • http://gree.co.jp/recruit/



Thursday, January 26, 12

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Ichii gree-crooz-20120126

  • 1. ( ) 2012/01/26 (thu) at 2012 #1 / ichii@gree.co.jp / @ichii386 Thursday, January 26, 12
  • 2. • 13F • 7 • • MySQL, Solaris, ZFS, InfiniBand • • • perl, Thursday, January 26, 12
  • 3. DB FILE KVS hadoop? • • pageview • • phpmyadmin SQL Thursday, January 26, 12
  • 4. pv.page=foo.gender=female.age=20 • “foo” 20 pv • iPhone • web • :1 x 7 • ID • • pv? pageview? • Thursday, January 26, 12
  • 5. ? • KVS • key pv { • key page: “foo”; • gender: “female”; age: 20; • } • hash O(1) • mongoDB ? • ... ! Thursday, January 26, 12
  • 6. 3776 • “key= , value=3776 ” Thursday, January 26, 12
  • 7. (2) • : WolframAlpha • Thursday, January 26, 12
  • 8. key serialize • key string CREATE TABLE kvs ( date DATE, • key KVS key VARCHAR, val DECIMAL, • key string UNIQUE KEY (date, key, val), FULLTEXT KEY (key) • SVC ) ENGINE=mroonga; pv.page=foo.gender=female.age=20 • • • false positive • “ key KVS” Thursday, January 26, 12
  • 9. (key string ) • RDB schema • schema less • • schema : pageview • key key • MySQL JOIN ! • MySQL Thursday, January 26, 12
  • 10. key KVS • • • • • • • MySQL mongo hadoop • Thursday, January 26, 12
  • 11. : • http://gree.co.jp/recruit/ Thursday, January 26, 12