Cache Invalidation Complexity: Rails 5.2 and Dalli Cache Store | Heroku
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Evolution of Application Data Caching : From RAM to SSD
In 2013, we introduced EVCache a distributed in-memory caching solution based on memcached that offers low-latency, high-reliability caching and storage. It is well integrated with AWS and EC2, a Netflix OSS project, and in many occasions it is termed as “the hidden microserviceâ€. Since then, EVCache has become a fundamental tier-0 service storing petabytes of data and hundred of billions of items
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Caching websites with Django and Memcached... | ilian.io
Caching websites with Django and Memcached... Published at July 12, 2011 | Tagged with: Python , speed , semantic web , Django , cache , Development , Technologies , Web ... memcached installation, django configuration and how to use it for your website After Caching web sites and web applications and When to use caching for web sites its time for a little sample. This sample shows the usage of Me
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ãªãœmemcachedをセッション管ç†ç”¨ã«ä½¿ã†ã®ã‹
Blog Search when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${entry.path} [in template "__entry.ftlh" at line 3, column 25] - Reached through: #include "__entry.ftlh" [in template "entry.ftlh" at
memcached を使ã£ãŸã‚¢ãƒ—リケーションã®è¨è¨ˆã«ã¤ã„㦠- blog.nomadscafe.jp
クライアントã‹ã‚‰memcachedを利用ã™ã‚‹éš›ã®ã€ãƒ™ã‚¹ãƒˆãƒ—ラクティスã¯ä»¥å‰æ›¸ã„ã¦ã„ã‚‹ã®ã§ã€ãã®å‰æ®µéšŽã§memcachedã‚’å«ã‚ãŸWebアプリケーションã®ã‚¢ãƒ¼ã‚テクãƒãƒ£(ã¨ä¸€éƒ¨ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®è©±)ã«ã¤ã„ã¦ä»Šã®å€‹äººçš„ãªè€ƒãˆã‚’ã¾ã¨ã‚ã¦ã¿ã¾ã™ã€‚Kyoto Tycoonを使ã£ãŸã‚ャッシュサーãƒã§ã‚‚基本ã¯åŒã˜ã ã¨æ€ã„ã¾ã™ 1) 使ã‚ãªã„ memcachedをアプリケーションã«çµ„ã¿è¾¼ã‚€ã“ã¨ã§ã€ãƒ—ãƒã‚°ãƒ©ãƒ ãŒã©ã†ã—ã¦ã‚‚複雑ã«ãªã‚ŠãŒã¡ã§ã™ã€‚データã®å‰Šé™¤ã‚„æ›´æ–°ã®éš›ã«ã‚ャッシュã®æ›´æ–°ã‚’忘れるã¨å¤šãã®å•é¡ŒãŒç™ºç”Ÿã—ã¾ã™ã€‚例ãˆã°ãƒ¦ãƒ¼ã‚¶ãŒãƒ‹ãƒƒã‚¯ãƒãƒ¼ãƒ やプãƒãƒ•ã‚£ãƒ¼ãƒ«å†™çœŸã‚’æ›´æ–°ã—ãŸã®ã«ç”»é¢ä¸Šå¤‰ã‚らãªã„ãªã©ã®ç¾è±¡ãŒèµ·ã“ã‚‹ã¨ã€ãƒ¦ãƒ¼ã‚¶ã«å¯¾ã—ã¦ä¸å¿«ãªæ€ã„ã‚’ã•ã›ã¦ã—ã¾ã†ã§ã—ょã†ã€‚ã¾ãŸãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ãŒéžåŒæœŸã®ãƒ¬ãƒ—リケーションを行ã£ã¦ã„ã‚‹å ´åˆã€masterã«å¯¾ã—ã¦ãƒ‡ãƒ¼ã‚¿ã®å¤‰æ›´ã‚’ã‹ã‘ã€æ›´æ–°ãŒåæ˜ ã•ã‚Œã‚‹å‰ã«slaveã‹ã‚‰èªã¿è¾¼ã‚“ã§ã—ã¾ã„ã€ã‚ャッシ
mixi大è¦æ¨¡éšœå®³ã«ã¤ã„㦠解明編 - mixi engineer blog
ã“ã‚“ã«ã¡ã¯ã€ã‚·ã‚¹ãƒ†ãƒ 本部技術部ãŸã‚“ã½ã½Gã®æ£®æœ¬ã§ã™ã€‚ 先日ã®mixi大è¦æ¨¡éšœå®³ã®åŽŸå› ã¨ãªã£ãŸmemcachedã®ä¸å…·åˆã®è©³ç´°ãªè§£æ˜ŽãŒã§ãã¾ã—ãŸã€‚ å†æ¥é€±ã¾ã§ç™ºè¡¨ã‚’見åˆã‚ã›ã‚ˆã†ã¨æ€ã£ãŸã®ã§ã™ãŒã€æ—©ããŠä¼ãˆã—ãŸã»ã†ãŒã„ã„ã¨æ€ã„ã¾ã—ãŸã®ã§å…¬é–‹ç™ºè¡¨è‡´ã—ã¾ã™ã€‚ memcachedã¨libevent memcachedã¯libeventã¨ã„ã†ãƒ©ã‚¤ãƒ–ラリを使用ã—ã¦ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰ã®è¦æ±‚(接続ã€ã‚³ãƒžãƒ³ãƒ‰é€ä¿¡)を処ç†ã—ã¦ã„ã¾ã™ã€‚ libeventを使用ã™ã‚‹ã«ã¯event_baseã¨ã„ã†æ§‹é€ 体を用ã„ã¾ã™ã€‚ main threadã¯main_baseを使用ã—ã¾ã™ã€‚ static struct event_base *main_base; ... int main (int argc, char **argv) { ... main_base = event_init(); ... /* enter the ev
mixi大è¦æ¨¡éšœå®³ã«ã¤ã„㦠ãã®2 - mixi engineer blog
ã“ã‚“ã«ã¡ã¯ã€‚システム本部技術部ãŸã‚“ã½ã½Gã®æ£®æœ¬ã§ã™ 補足を追記ã—ã¾ã—㟠(2010/08/20 15時) 先日ã®mixi大è¦æ¨¡éšœå®³ã«ã¤ã„ã¦ã®ç¶šå ±ã§ã™ 今回ã¯å°ãƒã‚¿ã¯ã‚ã‚Šã¾ã›ã‚“ ã¯ã˜ã‚ã« ã¾ãšåˆã‚ã«twitter/blogãªã©ã‚’通ã˜ã¦ä»Šå›žã®å•é¡Œã®è§£æžã‚’è¡Œã£ã¦ã„ãŸã ã„ãŸã¿ãªã•ã‚“ã«æ„Ÿè¬ã®è¨€è‘‰ã‚’æ§ã’ãŸã„ã¨æ€ã„ã¾ã™ kzk_moverã•ã‚“ stanakaã•ã‚“ mala(bulkneets)ã•ã‚“ llameradaã•ã‚“ (é †ä¸åŒ) ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—㟠書ãæ¼ã‚‰ã—ãŸäººã”ã‚ã‚“ãªã•ã„ memcachedã¯ã™ã”ㄠ今回ã®ä»¶ã§memcachedã«å¯¾ã—ã¦ä¸å®‰æ„Ÿã‚’æŒãŸã‚ŒãŸæ–¹ã‚‚ãŠã‚‰ã‚Œã‚‹ã¨ãŠèžãã—ã¾ã—㟠説明ä¸è¶³ã ã£ãŸã›ã„ã§èª¤è§£ã‚’与ãˆã¦ã—ã¾ã„申ã—訳ã‚ã‚Šã¾ã›ã‚“ ãã¡ã‚“ã¨è¨å®šãŠã‚ˆã³ç›£è¦–ã‚’è¡Œã£ã¦ã„ã‚Œã°é€šå¸¸ã®ä½¿ç”¨ã«ã¯ã¾ã£ãŸãå•é¡Œã¯ã‚ã‚Šã¾ã›ã‚“ 弊社ã«ã¦ -c 30万ã§èµ·å‹•ã—ãŸmemcachedã«å¯¾ã—ã¦ã€å…ˆã®ãƒ†ã‚¹ãƒˆã‚¹ã‚¯ãƒªãƒ—トã«
mixi大è¦æ¨¡éšœå®³ã«ã¤ã„㦠- mixi engineer blog
ã“ã‚“ã«ã¡ã¯ã€‚システム本部技術部ãŸã‚“ã½ã½Gã®æ£®æœ¬ã§ã™ 先日ã®mixi大è¦æ¨¡éšœå®³ã«ã¤ã„ã¦ã®ãƒ–ãƒã‚°ã§ã™ã€‚ ã¯ã˜ã‚ã«ãŠæ–ã‚Šã—ã¦ãŠãã¾ã™ãŒã€å¼Šç¤¾CTOãŒtwitterã§å…¬é–‹ã—ãŸä»¥ä¸Šã®æƒ…å ±ã¯ã¾ã 得られã¦ãŠã‚Šã¾ã›ã‚“。 twitterã§ã¯æ›¸ããã‚Œãªã‹ã£ãŸç´°éƒ¨ã‚’補足ã—ã¦ã¿ãŸã„ã¨æ€ã„ã¾ã™ ç¾çŠ¶åˆ¤æ˜Žã—ã¦ã„ã‚‹ã®ã¯ä»¥ä¸‹ã®ç‚¹ã§ã™ memcachedã«å¤§é‡ã®æŽ¥ç¶šãƒ»åˆ‡æ–ã‚’è¡Œã†ã¨memcachedプãƒã‚»ã‚¹ãŒçªç„¶çµ‚了ã™ã‚‹ã“ã¨ãŒã‚ã‚‹ memcachedã«ã¯ç•°å¸¸æ™‚ã«çµ‚了ã™ã‚‹ãƒ•ãƒãƒ¼ã‚‚ã‚ã‚‹ãŒã€åŒæ™‚ã«å‡ºåŠ›ã•ã‚Œã‚‹ã¯ãšã®ã‚¨ãƒ©ãƒ¼ãƒã‚°ã¯å‡ºã¦ã„ãªã‹ã£ãŸ coreも出力ã•ã‚Œã¦ã„ãªã‹ã£ãŸ テスト環境ã«ã¦è¿½è©¦ã‚’è¡Œã£ãŸã¨ã“ã‚ã€ãªã‚“ã©ã‹å†ç¾ã•ã›ã‚‹ã“ã¨ãŒã§ãã¾ã—ãŸãŒã€ç¢ºå®Ÿã«ç™ºç”Ÿã™ã‚‹æ¡ä»¶ã¯æœªã ä¸æ˜Žã§ã™ã€‚ 障害時㮠memcachedã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã¯1.4.4, libeventã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã¯1.3bã§ã™ memcached ã®èµ·å‹•ã‚ªãƒ—ションã¯ä»¥ä¸‹ã®ã¨ãŠã‚Š ./
mixiãŒã¯ã¾ã£ãŸmemcached(or libevent?)ã®å•é¡Œã‚’調ã¹ã‚‹äººãŸã¡
Neal Sato @nealsato 二日ã¨ã‚‚複数å°ã®memcachedãŒé€£ç¶šã—ã¦è½ã¡ã¾ã—ãŸã€‚コアã¯åã‹ãšã«ã‚¹ãƒˆãƒ³ã¨è½ã¡ã‚‹ã®ã§ã€åŽŸå› 追åŠã«æ™‚é–“ãŒã‹ã‹ã‚Šã¾ã—ãŸãŒã€memcachedã¸ã®æŽ¥ç¶šæ•°ãŒç•°å¸¸ã«å¤šã„ã¨è½ã¡ã‚‹äº‹ã¯å†ç¾ã§ãã¾ã—ãŸã€‚ #mixi 2010-08-12 02:33:00 Neal Sato @nealsato memcachedãŒå¤§é‡ã®æŽ¥ç¶šã‚’å—ã‘ã‚‹ã¨çªç„¶åœæ¢ã‚’ã™ã‚‹ã®ã§ã€memcachedã¸ã®æŽ¥ç¶šæ•°ã‚’減らã—安定é‹ç”¨ä¸ã€‚外部ã‹ã‚‰ã®éŽå‰°ã‚¢ã‚¯ã‚»ã‚¹ã§ã¯ãªãã€ã‚µãƒ¼ãƒè¿½åŠ â†’ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆæ•°å¢—åŠ â†’åœæ¢ã€‚ 2010-08-12 08:45:50 Masahiro Nagano / 長野雅広 @kazeburo ファイルディスクリプタãŒä¸è¶³ã—ã¦memcachedãŒè½ã¡ãŸã¨ã—ã¦ã€ãã®ã¨ãã«ã¯ã€3万強ã®æŽ¥ç¶šã¨ãªã£ã¦ã‚‹ã¯ãšã€‚3万強ã®æŽ¥ç¶šã¨ãªã‚‹ã«ã¯ã‚¢ãƒ—リケーションサーãƒå´ã®max clientãŒå¹³å‡60ã¨ã—
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GitHub - clojurewerkz/spyglass: A Clojure Memcached client (also: Couchbase, Kestrel). Built on top of SpyMemcached, supports ASCII and binary protocols, strives to be 100% feature complete.
GitHub - petergoldstein/dalli: High performance memcached client for Ruby
Memcached vs. Redis?
English (US)
GitHub - twitter/twemproxy: A fast, light-weight proxy for memcached and redis
Which one should I use for a web-based application: Redis or Memcached? Does Memchached have the feature that allows for running Python a...
Why would a new startup choose Memcached over Redis?
Is MongoDB a good replacement for Memcached?
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