GitHub - winebarrel/activerecord-cassandra-adapter: activerecord-cassandra-adapter is a Cassandra adapter for ActiveRecord.You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
Ruby ã‹ã‚‰ Cassandra を使ã£ã¦ã¿ã‚‹ ãã®3 - akishin999ã®æ—¥è¨˜
Windows ã‹ã‚‰ Ruby 㧠Cassandra を使ã†ãŸã‚ã®æº–å‚™ Ruby ã‹ã‚‰ Cassandra を使ã£ã¦ã¿ã‚‹ Ruby ã‹ã‚‰ Cassandra を使ã£ã¦ã¿ã‚‹ ãã®2 ã®ç¶šãã§ã™ã€‚ Twissandra Cassandra 自体ã®æ“作ã«ã‚‚大分慣れã¦ããŸã®ã§ã€ãã‚ãã‚具体的ãªã‚¢ãƒ—リケーションã§ã‚‚作ã£ã¦ã¿ã‚ˆã†ã‹ãªã€ã¨æ€ã£ãŸã®ã§ã™ãŒã€ãƒ‡ãƒ¼ã‚¿ãƒ¢ãƒ‡ãƒ«ãŒ RDBMS ã¨ç•°ãªã‚‹ã®ã§ã€ä»Šä¸€ã¤å‹˜æ‰€ãŒæŽ´ã‚ã¾ã›ã‚“。 特㫠RDBMS ã®æ™‚㯠MySQL ã® auto increment 値や Oracle ã® SEQUENCE をレコードã®ä¸»ã‚ーã¨ã—ã¦ä½¿ç”¨ã—ã¦ã¾ã—ãŸãŒã€ãã†ã„ã£ãŸä¸€æ„ã®å€¤ã‚’ Cassandra ã§ã¯ã©ã†ã‚„ã£ã¦ä½œæˆã™ã‚‹ã®ã‹ã€ã©ã†ã«ã‚‚イメージãŒã‚ãã¾ã›ã‚“・・・。 ã“ã†ã„ã†æ™‚ã¯å…·ä½“çš„ãªã‚¢ãƒ—リケーションã®è¨è¨ˆã«å¦ã¶ã®ãŒä¸€ç•ªãªã®ã§ã€Cassandra を使ã£ãŸã‚ªãƒ¼ãƒ—ンソース㮠Python
Ruby ã‹ã‚‰ Cassandra を使ã£ã¦ã¿ã‚‹ ãã®2 - akishin999ã®æ—¥è¨˜
Windows ã‹ã‚‰ Ruby 㧠Cassandra を使ã†ãŸã‚ã®æº–å‚™ Ruby ã‹ã‚‰ Cassandra を使ã£ã¦ã¿ã‚‹ ã‚ãŸã‚Šã®ç¶šãã§ã™ã€‚ get_columns å˜ä¸€ã®ã‚«ãƒ©ãƒ ã®å€¤ã‚’å–å¾—ã™ã‚‹ get_columns ã®ã‚µãƒ³ãƒ—ルコードã§ã™ã€‚ カラムã¯é…列ã§è¤‡æ•°æŒ‡å®šå¯èƒ½ã§ã™ã€‚ require 'rubygems' require 'cassandra' include Cassandra::Constants client = Cassandra.new('Keyspace1', '127.0.0.1:9160') p client.get_columns(:Standard1, 'jsmith', ['first']) 実行çµæžœã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ ["John"] multi_get 複数ã®ã‚ーã®å€¤ã‚’å–å¾—ã™ã‚‹ multi_get ã®ã‚µãƒ³ãƒ—ルコードã§ã™ã€‚ require 'rubyg
up and running with cassandra
Cassandra is a hybrid non-relational database in the same class as Google’s BigTable. It is more featureful than a key/value store like Riak, but supports fewer query types than a document store like MongoDB. Cassandra was started by Facebook and later transferred to the open-source community. It is an ideal runtime database for web-scale domains like social networks. This post is both a tutorial
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