[B! Ruby][kernel] clavierã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

clavier id:clavier

Rubyã¨kernelã«é–¢ã™ã‚‹clavierã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (4)

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clavier 2014/12/16
kernel

Ruby
ãƒªãƒ³ã‚¯
Refactor to use Ruby standard library Â·
Updates: Brian Hogan did a talk on "don't reinvent the wheel" at the 2010 Ruby Hoedown; he has more examples around FileUtils and Pathname and such. For example, replacing File.read(File.join(Rails.root, "config", "database.yml") with Rails.root.join("config", "database.yml").read. Bruce Williams notes that folks may not be aware of and thus neglect newer Ruby methods like Enumerable#each_with_obj
clavier 2014/04/07
kernel

ruby
ãƒªãƒ³ã‚¯
Redis::DistMutex â€“ æ™‚é™ä»˜ãåˆ†æ•£ãƒãƒƒã‚¯ã§åŠ¹çŽ‡è‰¯ãã‚µã‚¤ãƒˆã‚¯ãƒãƒ¼ãƒ«ã‚’ã—ã‚ˆã† | VASILY DEVELOPERS BLOG
ã¯ã˜ã‚ã¾ã—ã¦ã€‚ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®å‰ç”°ã§ã™ã€‚ 2013å¹´5æœˆæœ«ã®å…¥ç¤¾ä»¥é™ã€å¤§é‡ã®EC2ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã®VPCç§»è¡Œã‚’æ‹…å½“ã—ãŸå¾Œã€ä»Šã¯iQONã®å•†å“DBã‚’æ”¯ãˆã‚‹ã‚¯ãƒãƒ¼ãƒ©ãƒ¼ã®æ”¹å–„ã«å–ã‚Šçµ„ã‚“ã§ã„ã¾ã™ã€‚ä»Šå›žã¯ãã®æ”¹å–„ã®1ã¤ã¨ã—ã¦é–‹ç™ºã—ãŸRedis::DistMutexã¨ã„ã†åˆ†æ•£ãƒãƒƒã‚¯æ©Ÿæ§‹ã®rubyå®Ÿè£…ã‚’ç´¹ä»‹ã‚’ã—ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚ Redis::DistMutex é–‹ç™ºã®çµŒç·¯ã‚„ç´°ã‹ã„è¨è¨ˆã®è©±ã¯å¾Œè¿°ã™ã‚‹ã¨ã—ã¦ã€ã¾ãšã¯ã¤ãã£ãŸgemã®ç´¹ä»‹ã‚’ã—ã¾ã™ã€‚ Redis::DistMutex Redisãƒ™ãƒ¼ã‚¹ã®åˆ†æ•£ãƒãƒƒã‚¯æ©Ÿæ§‹ rubyã®ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã«ã‚ã‚‹Mutexäº’æ› ã‚¹ãƒ¬ãƒƒãƒ‰é–“ã ã‘ã§ãªãã€ãƒ—ãƒã‚»ã‚¹é–“ãƒ»ãƒ›ã‚¹ãƒˆé–“ã§ã‚‚å…±æœ‰ã§ãã‚‹Mutex æ™‚é™ã¤ããƒãƒƒã‚¯ã®ä½œæˆãŒå¯èƒ½(redisã®setnxã¨expireã‚’æ´»ç”¨) namespaceã‚’æŒ‡å®šã§ãã‚‹ã®ã§ã€ç‰¹å®šã®å‡¦ç†ã”ã¨ã«ãƒãƒƒã‚¯ã®ä½œæˆãŒå¯èƒ½ redis2.6ä»¥ä¸Šã®ã¿ã‚µãƒãƒ¼ãƒˆ(1ç§’
clavier 2013/11/27
kernel

ec2

gem

redis

ruby
ãƒªãƒ³ã‚¯
ruby/perl ã®syswrite ã«ã¤ã„ã¦è©±ã—ãŸã‚ã¨ã°ãŸã‚“ã¨å¯ã¦ãŸã‚‰ã€å¯ã¦ã‚‹é–“ã« ruby ã‚³ãƒŸãƒƒã‚¿ã¨ linux kernel ã‚³ãƒŸãƒƒã‚¿ãŒã‚„ã£ã¦ãã¦ write(2) ã®åˆ¶ç´„ã§ã‚ã‚‹ã“ã¨ãŒæ˜Žã‚‰ã‹ã«ãªã£ã¦ã„ãŸ
ruby/perl ã®syswrite ã«ã¤ã„ã¦è©±ã—ãŸã‚ã¨ã°ãŸã‚“ã¨å¯ã¦ãŸã‚‰ã€å¯ã¦ã‚‹é–“ã« ruby ã‚³ãƒŸãƒƒã‚¿ã¨ linux kernel ã‚³ãƒŸãƒƒã‚¿ãŒã‚„ã£ã¦ãã¦ write(2) ã®åˆ¶ç´„ã§ã‚ã‚‹ã“ã¨ãŒæ˜Žã‚‰ã‹ã«ãªã£ã¦ã„ãŸ
clavier 2013/03/20
twitter

linux

kernel

ruby
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