[B! memcached] a2ikmã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

a2ikm id:a2ikm

memcachedã«é–¢ã™ã‚‹a2ikmã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (69)

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Linuxã‚«ãƒ¼ãƒãƒ«4.1ã®SLUBã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ï¼ˆãƒ‰ãƒ©ãƒ•ãƒˆï¼‰ - Ï†(ãƒ»ãƒ»*)ã‚ž ï½³ï½°ï¾ã€€ã‚«ãƒ¼ãƒãƒ«ã¨ã‹å¼„ã£ãŸã‚Šã®ãƒ¡ãƒ¢
ã¯ã˜ã‚ã« ã‚¹ãƒ©ãƒ–ã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ Linuxã®ã‚¹ãƒ©ãƒ–ã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ slabã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ slobã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ slubã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ ã‚¹ãƒ©ãƒ–ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ç®¡ç† ä½¿ç”¨ä¸ãƒªã‚¹ãƒˆ ã‚¹ãƒ©ãƒ–ã®ãƒžãƒ¼ã‚¸æ©Ÿèƒ½ Chache Coloring ã‚¹ãƒ©ãƒ–ã®ä¸æ´»æ€§åŒ– frozençŠ¶æ…‹ ã‚¹ãƒ©ãƒ–ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®æƒ…å ± slubã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ã®ãƒ‡ãƒ¼ã‚¿æ§‹é€ ãƒ‡ãƒ¼ã‚¿ã®é–¢é€£ slubã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ã§ä½¿ç”¨ã™ã‚‹ãƒ‡ãƒ¼ã‚¿ã®é–¢é€£ ã‚¹ãƒ©ãƒ–ã®ãƒ©ã‚¤ãƒ•ã‚µã‚¤ã‚¯ãƒ« ã‚¹ãƒ©ãƒ–ã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ã®æ©Ÿèƒ½ ã‚¹ãƒ©ãƒ–ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®ä½œæˆ ã‚¹ãƒ©ãƒ–ã‚ãƒ£ãƒƒã‚·ãƒ¥ç”Ÿæˆæ™‚ã«è¨å®šã™ã‚‹ãƒ•ãƒ©ã‚° ç©ºãã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ç®¡ç† ç©ºãã‚¹ãƒ©ãƒ–ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®è¨å®š ã‚¹ãƒ©ãƒ–ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ç¢ºä¿ ã‚¹ãƒ©ãƒ–ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®è§£æ”¾ kmem_cache_cpuæ§‹é€ ä½“ã®ãƒ‡ãƒ¼ã‚¿ã‚¯ãƒªã‚¢ ã‚¹ãƒ©ãƒ–ã®ä¸æ´»æ€§åŒ– ã‚¹ãƒ©ãƒ–ã®å‰Šé™¤ ã‚¹ãƒ©ãƒ–ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®å‰Šé™¤ ã‚¹ãƒ©ãƒ–ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®ã‚»ãƒƒãƒˆã‚¢ãƒƒãƒ— slubã‚¢ãƒãƒ¼ã‚±ãƒ¼ã‚¿ã§ä½¿ç”¨ã™ã‚‹ãƒ˜ãƒ«ãƒ‘ãƒ¼é–¢æ•° __cmpxchg_dou
a2ikm 2019/05/13
linux

memory

kernel

memcached
ãƒªãƒ³ã‚¯
GitHub ã« 1 TBps è¶…ã®æ”»æ’ƒã€ã€Œmemcachedã€ã‚’åˆ©ç”¨ã™ã‚‹æ–°ãŸãª DDoS æ‰‹æ³•ã‚’è§£èª¬ | ãƒˆãƒ¬ãƒ³ãƒ‰ãƒžã‚¤ã‚¯ãƒ ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ–ãƒã‚°
GitHub ã« 1 TBps è¶…ã®æ”»æ’ƒã€ã€Œmemcachedã€ã‚’åˆ©ç”¨ã™ã‚‹æ–°ãŸãª DDoS æ‰‹æ³•ã‚’è§£èª¬ 2018 å¹´ 2 æœˆæœ«ã«å ±å‘Šã•ã‚ŒãŸå¢—å¹…åž‹ã®ã€Œåˆ†æ•£åž‹ã‚µãƒ¼ãƒ“ã‚¹æ‹’å¦ï¼ˆdistributed denial-of-serviceã€DDoSï¼‰æ”»æ’ƒã€ã§ã€åˆ†æ•£åž‹ãƒ¡ãƒ¢ãƒªã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚·ã‚¹ãƒ†ãƒ ã€Œmemcachedã€ã‚’åˆ©ç”¨ã™ã‚‹æ–°ã—ã„æ‰‹æ³•ãŒç¢ºèªã•ã‚Œã¾ã—ãŸã€‚DDoS æ”»æ’ƒã§åˆ©ç”¨ã•ã‚Œã‚‹ãƒ—ãƒãƒˆã‚³ãƒ«ã¨ã„ãˆã°ã€ŒDomain Name Systemï¼ˆDNSï¼‰ã€ã€ã€ŒUniversal Plug and Playï¼ˆUPnPï¼‰ã€ã€ã€ŒSession Description Protocolï¼ˆSDPï¼‰ã€ã€ã€ŒNetwork Time Protocolï¼ˆNTPï¼‰ã€ãªã©ãŒä¸€èˆ¬çš„ã§ã™ã€‚ã—ã‹ã—ã€memcached ã‚’åˆ©ç”¨ã™ã‚‹ã¨ã€éŽåŽ»ã«ç¢ºèªã•ã‚ŒãŸ DDoS æ”»æ’ƒã‚ˆã‚Šã‚‚ã¯ã‚‹ã‹ã«å¤§è¦æ¨¡ãªæ”»æ’ƒã‚’å®Ÿè¡Œã•ã‚Œã‚‹æã‚ŒãŒã‚ã‚Šã¾ã™ã€‚memcached ã¯ãƒ‡ãƒ¼ã‚¿
a2ikm 2018/03/16
memcached

security
ãƒªãƒ³ã‚¯
mcafee.jpÂ -Â ã“ã®ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã¯è²©å£²ç”¨ã§ã™ï¼Â -Â mcafee ãƒªã‚½ãƒ¼ã‚¹ãŠã‚ˆã³æƒ…å ±
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a2ikm 2018/03/16
memcached

security
ãƒªãƒ³ã‚¯
Memcached 1.4.19 to 1.4.28: Eviction ä¸å…·åˆã«ã‚ˆã‚‹ Slab OOM
ã¯ã˜ã‚ã« Memcached ã‚’é‹ç”¨ä¸ã«ã€Request ã®å‚¾å‘ã¯å¤‰ã‚ã£ã¦ã„ãªã„ã«ã‚‚ã‹ã‹ã‚ã‚‰ãšã€å¾ã€…ã« It em æ•°ãŒå¢—åŠ ã—å§‹ã‚ã€ ã‚ã‚‹æ™‚ã‚’å¢ƒã«Â It em ãŒ ä¸€åˆ‡ Eviction/Expire ã•ã‚Œãªããªã‚Šã€Memory ãŒæž¯æ¸‡ã— Slab OOM Error ãŒèµ·ã“ã‚‹ã€ã¨ã„ã†ä¸å…·åˆã«éé‡ã—ã¾ã—ãŸã€‚ä¸å…·åˆã®åŽŸå› ã«ã¤ã„ã¦ã¯ç‰¹å®šã—ã€1.4.29 ã§ä¿®æ£ãŒãƒžãƒ¼ã‚¸ã•ã‚Œã¾ã—ãŸ (Pull-Request: fix zero hash it ems evictionÂ , ReleaseNote1.4.29) ã€‚ä¸å…·åˆãŒç™ºç”Ÿã™ã‚‹æ¡ä»¶ã€åŽŸå› ã€å›žé¿ç–ã‚’ç°¡å˜ã«ã¾ã¨ã‚ã¦ãŠãã¾ã™(Pull-Request ã«ã¯ã‚ˆã‚Šè©³ã—ãæ›¸ã„ã¦ã‚ã‚Šã¾ã™)ã€‚ ä¸å…·åˆãŒç™ºç”Ÿã™ã‚‹æ¡ä»¶ Memcached Version : 1.4.19 ã‹ã‚‰ 1.4.28 SET ã—ãŸ Key ã‚’ GET ã—ãªã„å ´åˆãŒã‚ã‚‹ It em ã‚’å…¥ã‚Œæ›¿ãˆã‚‹ C
a2ikm 2017/05/22
memcached
ãƒªãƒ³ã‚¯
Memcached Doesn't Work the Way You Think It Does
a2ikm 2017/05/02
memcached

performance
ãƒªãƒ³ã‚¯
launchdã§å‹•ã‹ã—ã¦ã‚‹memcachedã®ãƒã‚°ã‚’å–ã‚‹ - There's an echo in my head
homebrewã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã‚‹ã®ã§launchdã«èªã¾ã›ã¦ã‚‹plistã¯~/Library/LaunchAgents/homebrew.mxcl.memcached.plistã«ã‚ã‚‹ã€‚ ä¸‹è¨˜ã«ã‚³ãƒ¡ãƒ³ãƒˆã—ãŸã‚ãŸã‚Šã‚’ã‚ˆã—ãªã«è¨˜è¼‰ã™ã‚‹ã€‚ <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>homebrew.mxcl.memcached</string> <key>KeepAlive</key> <true/> <key>ProgramArguments</
a2ikm 2017/03/16
[self][memcached][osx][launchctl][launchd]
ãƒªãƒ³ã‚¯
Can memcached be used for locking?
a2ikm 2017/03/05
memcached

distributed

lock
ãƒªãƒ³ã‚¯
memcached/doc/protocol.txt at master Â· memcached/memcached
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a2ikm 2016/11/16
memcached
ãƒªãƒ³ã‚¯
bashã§memcachedã‚’å®Ÿè£…ã—ã¾ã—ãŸï¼ - Qiita
TL;DR bashã¨socatã‚³ãƒžãƒ³ãƒ‰ã‚’åˆ©ç”¨ã—ã¦memcachedã‚’å®Ÿè£…ã—ã¾ã—ãŸã€‚ MakeNowJust/bashcached - GitHub æœ¬æ–‡ ã¯ã˜ã‚ã« bashã§å®Ÿè£…ã—ãŸmemcachedã§ã™ https://t.co/5UQk8x3wqw â€” ã•ã£ãä½œã£ãŸ@3æ—¥ç›®æ±R-13a (@make_now_just) 2016å¹´10æœˆ28æ—¥ bashã§memcachedã‚’å®Ÿè£…ã—ãŸã‚‰Hacker Newsã§ã¡ã‚‡ã£ã¨è©±é¡Œã«ãªã£ãŸã¿ãŸã„ãªã®ã§è¨˜äº‹ã«ã—ã¾ã™ã€‚ ã¨ã‚Šã‚ãˆãšã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«æ–¹æ³• ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«æ–¹æ³•ã§ã™ã€‚ ã¾ãšsocatãŒå¿…è¦ãªã®ã§ã€
a2ikm 2016/11/07
bash

memcached

socket
ãƒªãƒ³ã‚¯
MySQL 5.6ã®InnoDB memcached pluginã‚’ä½¿ã£ã¦ã¿ã‚‹ - é…’æ—¥è¨˜ ã¯ã¦ãªæ”¯åº—
MySQL 5.6ã® RC ç‰ˆãŒå‡ºã¾ã—ãŸãã€‚é…åŠ›çš„ãªæ©Ÿèƒ½ãŒæº€è¼‰ã§çš†ã•ã‚“wktkã—ã¦ã„ã‚‹ã“ã¨ã¨æ€ã„ã¾ã™ã€‚æ—©é€Ÿã€å€‹äººçš„ã«æ°—ã«ãªã£ã¦ã„ãŸ memcached plugin ã‚’è©¦ã—ã¦ã¿ã¾ã—ãŸã€‚ æœ€åˆã«çµè«–ã‹ã‚‰è¨€ã„ã¾ã™ãŒã€ç¾æ™‚ç‚¹ (5.6.7rc) ã§ã¯ HandlerSocket ã®ä»£ã‚ã‚Šã«ä½¿ãˆã‚‹ã‚ˆã†ãªã‚‚ã®ã§ã¯ãªã•ãã†ã§ã™ã€‚ memcached protocol ã§ã‚¢ã‚¯ã‚»ã‚¹ã§ãã‚‹ã®ã¯å…¨ä½“ã§ 1 ãƒ†ãƒ¼ãƒ–ãƒ«ã®ã¿ è¨‚æ£: namespace ã¨ã„ã†ä»•çµ„ã¿ã§è¤‡æ•°ãƒ†ãƒ¼ãƒ–ãƒ«ã«mapãŒå¯èƒ½ã§ã™ ãƒ†ãƒ¼ãƒ–ãƒ«ã®æ–‡å—ã‚³ãƒ¼ãƒ‰ã¯ latin1 ã§ã‚ã‚‹å¿…è¦ãŒã‚ã‚‹ ã€2012-11-22 è¿½è¨˜ã€‘5.6.8RCã§ã¯ã€æ–‡å—ã‚³ãƒ¼ãƒ‰ãŒ latin1 ã§ã‚ã‚‹ã¨ã„ã†åˆ¶é™ã¯æ’¤å»ƒã•ã‚Œã¾ã—ãŸ ã€ŒMySQL ã®ãƒ†ãƒ¼ãƒ–ãƒ«ã« memcached protocol ã§ã‚¢ã‚¯ã‚»ã‚¹ã§ãã‚‹ã€ã¨ã„ã†ã‚ˆã‚Šã¯ã€ã€Œmemcached ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’ InnoDB ã«ã§
a2ikm 2016/02/05
mysql

innodb

memcached

performance
ãƒªãƒ³ã‚¯
groupcacheâ€Ž ã§çµ„ã¿è¾¼ã¿åž‹åˆ†æ•£ã‚ãƒ£ãƒƒã‚·ãƒ¥ - Qiita
groupcacheâ€Ž ã¯ Go ã§æ›¸ã‹ã‚ŒãŸåˆ†æ•£ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã€è¤‡æ•°ãƒ—ãƒã‚»ã‚¹ã§ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’å…±æœ‰ã™ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ãŒç°¡å˜ã«æ›¸ã‘ã¾ã™ã€‚å¤šãã®ç”¨é€”ã§ memcached ã‚’ç½®ãæ›ãˆã‚‹ã“ã¨ã‚’ç›®æŒ‡ã—ã¦ã„ã¦ã€Google ã®ãƒ—ãƒãƒ€ã‚¯ã‚·ãƒ§ãƒ³ç’°å¢ƒã§ä½¿ã‚ã‚Œã¦ã„ã‚‹ã‚ˆã†ã§ã™ã€‚ å€‹äººçš„ã« groupcache ã®é…åŠ›ã¯ã€ ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’è¤‡æ•°ã®ãƒ”ã‚¢ã«åˆ†æ•£ã™ã‚‹ (sharding) ã‚ãƒ£ãƒƒã‚·ãƒ¥ã«ç„¡ã„ãƒ‡ãƒ¼ã‚¿ã‚’åŒæ™‚ã«å¤§é‡ã«ãƒªã‚¯ã‚¨ã‚¹ãƒˆã—ã¦ã‚‚ã€ã‚ãƒ£ãƒƒã‚·ãƒ¥ç”Ÿæˆå‡¦ç†ã¯1åº¦ã ã‘å®Ÿè¡Œã•ã‚Œã€ä»–ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆã«ã¯ç”Ÿæˆã•ã‚ŒãŸã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’è¿”ã™ï¼ˆåŽ³å¯†ã§ã¯ç„¡ã„ãŒã€ã ã„ãŸã„ã®å ´åˆ1åº¦ãã‚Šï¼‰ é »ç¹ã«ãƒªã‚¯ã‚¨ã‚¹ãƒˆã•ã‚Œã‚‹ãƒ‡ãƒ¼ã‚¿ãŒãƒªãƒ¢ãƒ¼ãƒˆã«ã‚ã£ãŸå ´åˆã€ãƒãƒ¼ã‚«ãƒ«ã«ã‚‚ã‚ãƒ£ãƒƒã‚·ãƒ¥ã™ã‚‹ ä¸€æ–¹ã€æ³¨æ„ã—ãªã„ã¨ã„ã‘ãªã„ç‚¹ã¯ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã«ã¯å¯¾å¿œã—ã¦ã„ãªã„ã“ã¨ã§ã™ã€‚groupcache ã«ã¯ expire ã‚„æ˜Žç¤ºçš„ãªç ´æ£„ã¯å˜åœ¨ã—ã¾ã›ã‚“ã€‚ã‚ã‚‹ã‚ãƒ¼ã«å¯¾ã™ã‚‹å€¤ã¯ å¸¸ã«
a2ikm 2016/01/06
cache

golang

memcached

groupcache
ãƒªãƒ³ã‚¯
Goã®Memcacheãƒ‘ãƒƒã‚±ãƒ¼ã‚¸æ¯”è¼ƒ - Qiita
ã¯ã˜ã‚ã« Goè¨€èªžã§ä½œã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã¯ã»ã¨ã‚“ã©ã®å ´åˆã€ãã®ã¾ã¾ã§ã‚‚ååˆ†é«˜é€Ÿã«ç¨¼åƒã—ã¾ã™ãŒã€å ´åˆã«ã‚ˆã£ã¦ã¯ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’ä½¿ç”¨ã—ã¦é«˜é€ŸåŒ–ã‚’å›³ã‚‹å ´åˆãŒã‚ã‚Šã¾ã™ã€‚ Goã«ã¯gocacheã¨ã„ã†å¼·åŠ›ãªãƒãƒ¼ã‚«ãƒ«ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ãŒå˜åœ¨ã—ã¾ã™ãŒã€gocacheã ã¨ä¸‹è¨˜ã®ç‚¹ã§ã¾ã‚Œã«å•é¡ŒãŒç™ºç”Ÿã™ã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ ãƒ›ã‚¹ãƒˆãƒ»ãƒ—ãƒã‚°ãƒ©ãƒ ãƒ»ã‚µãƒ¼ãƒ“ã‚¹ãªã©ã‚’ã¾ãŸã„ã§ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’å‚ç…§ã•ã›ã‚‰ã‚Œãªã„ ãƒ—ãƒã‚°ãƒ©ãƒ ãŒçµ‚äº†ã™ã‚‹ã¨ã‚ãƒ£ãƒƒã‚·ãƒ¥ãŒæ¶ˆãˆã‚‹ ã“ã‚Œã‚‰ã‚’å›žé¿ã™ã‚‹ãŸã‚ã€ãƒãƒ¼ã‚«ãƒ«ã§æ¸ˆã‚€ã‚ãƒ£ãƒƒã‚·ãƒ¥ã«ã¤ã„ã¦ã¯gocacheã§ã‚ãƒ£ãƒƒã‚·ãƒ¥ã—ã¦ãŠãã€ãã‚Œä»¥å¤–ã®ã‚ãƒ£ãƒƒã‚·ãƒ¥ã¯memcacheã‚„redisãªã©ã«è¼‰ã›ã‚‹ã€ã¨ã„ã£ãŸæˆ¦ç•¥ã‚’æŽ¡ã‚‹ã“ã¨ãŒå¤šã„ã¨æ€ã„ã¾ã™ã®ã§ã€memcacheãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã«ã¤ã„ã¦æ¯”è¼ƒã—ã¦ã¿ã¾ã™ã€‚ Goã®memcacheãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ Goã®memcacheãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¯ä½•ãŒã‚ã‚‹ã®ã‹ã€ã¾ãšgithubã§ç™»éŒ²ã•ã‚Œã¦ã„ã‚‹ãƒªãƒã‚¸ãƒˆãƒªã‚’æ¤œç´¢ã—ãŸã¨ã“
a2ikm 2015/12/09
golang

memcached
ãƒªãƒ³ã‚¯
ç¬¬2å›žã€€memcachedã®ãƒ¡ãƒ¢ãƒªã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’ç†è§£ã™ã‚‹ | gihyo.jp
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a2ikm 2015/11/11
memcached

algorithm
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Redisä½œè€…è‡ªèº«ã«ã‚ˆã‚‹Redisã¨Memcachedã®æ¯”è¼ƒ | Yakst
Redisã®ä½œè€…antirezæ°è‡ªã‚‰ã«ã‚ˆã‚‹ã€memcachedã¨Redisã®é•·æ‰€çŸæ‰€ã®æ¯”è¼ƒã€‚ç‰¹ã«ã€Redisã‚’å˜ãªã‚‹ã‚ãƒ£ãƒƒã‚·ãƒ¥ç”¨ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã¨ã—ã¦memcachedã¨æ¯”è¼ƒã™ã‚‹ã“ã¨ã®é–“é•ã„ã¨ã€ãã‚Œãžã‚Œã®å‘ã„ã¦ã„ã‚‹ä½¿ç”¨æ–¹æ³•ã«ã¤ã„ã¦ã®ç§è¦‹ã€‚ ã‚ãªãŸãŒç§ã¨é¢è˜ãŒã‚ã‚‹ãªã‚‰ã€ç§ãŒç«¶åˆè£½å“ãŒã‚ã‚‹ã“ã¨ãŒæ‚ªã„ã¨è€ƒãˆã‚‹äººé–“ã§ãªã„ã“ã¨ã¯ã”å˜çŸ¥ã§ã—ã‚‡ã†ã€‚ãƒ¦ãƒ¼ã‚¶ãƒ¼ã«é¸æŠžè‚¢ãŒã‚ã‚‹ã“ã¨ã¯æœ¬å½“ã«ã„ã„ã“ã¨ã ã¨æ€ã£ã¦ã„ã¾ã™ã—ã€ã ã‹ã‚‰ã“ãä»–ã®æŠ€è¡“ã¨Redisã‚’æ¯”è¼ƒã™ã‚‹ã‚ˆã†ãªã“ã¨ã¯ã»ã¨ã‚“ã©ã—ã¾ã›ã‚“ã§ã—ãŸã€‚ ã—ã‹ã—ã€æœ€é©ãªã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã‚’é¸ã¶ãŸã‚ã«ã¯ã€ãƒ¦ãƒ¼ã‚¶ãƒ¼ã¯æ£ã—ãæƒ…å ±ã‚’æŒãŸãã°ãªã‚‰ãªã„ã®ã‚‚ç¢ºã‹ã§ã™ã€‚ ã“ã®è¨˜äº‹ã‚’æ›¸ãã®ã¯ã€æœ‰åãªãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã‚ã‚‹Sidekiqã®ä½œè€…ã¨ã—ã¦çŸ¥ã‚‰ã‚Œã‚‹Mike PerhamãŒã€Redisã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã¨ã—ã¦ã®ä½¿ã„æ–¹ã‚’æ›¸ã„ãŸè¨˜äº‹ã‚’èªã‚“ã ã®ãŒãã£ã‹ã‘ã§ã™ã€‚å¾“ã£ã¦ã€ç§ã¯MikeãŒRedisã«ã€Œå
a2ikm 2015/10/14
redis

memcached
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ã‚ãƒ¼ä¸€è¦§ã‚’è¦‹ã‚‹ãŸã‚ã«memcachedå…¥é–€ - tumblr
memcachedã‚’ä½¿ã†å ´åˆã€å¤šãã¯ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®è¨€èªžã”ã¨ã«ã‚ã‚‹ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’ä½¿ã£ã¦getã¨ã‹setã‚’ã™ã‚‹ã¨æ€ã†ã€‚telnetã§ç›´æŽ¥memcachedãƒ—ãƒãƒˆã‚³ãƒ«ä½¿ã†ã®ã¯ã‚ãƒ¼ã®ä¸€è¦§ãŒè¦‹ãŸã„ã¨ã‹ãƒ‡ãƒãƒƒã‚°æ™‚ãã‚‰ã„ã ã¨æ€ã†ã€‚ãã®ãƒ‡ãƒãƒƒã‚°æ™‚ã‚‚è¨€èªžã”ã¨ã®replä½¿ã†ã»ã†ãŒæ—©ã‹ã£ãŸã‚Šã™ã‚‹ã‘ã©ã€‚ ã¾ããã‚“ãªã‚ã‘ã§memcachedã‚’telnetã‹ã‚‰å©ãã“ã¨ã¯æ®†ã©ãªã„ã®ã§ã¯ãªã„ã‹ã¨æ€ã†ã€‚è‡ªåˆ†ãŒå˜ç´”ã«çµŒé¨“ä¸è¶³ãªã®ã‚‚åœ¨ã‚‹ã ã‚ã†ã‘ã©ã€‚ã§ã€ã“ã®é–“ç›´æŽ¥è¦—ããŸã„æ©Ÿä¼šãŒã‚ã£ãŸã®ã§ã©ã†ã„ã†keyãŒå…¥ã£ã¦ã‚‹ã®ã‹èª¿ã¹ã‚‹ãŸã‚ã«ã‚ãƒ¼ä¸€è¦§ã‚’è¦‹ã‚ˆã†ã¨ã—ã¦ã¿ãŸã®ã ã‘ã©è¦‹æ–¹ãŒå…¨ãã‚ã‹ã‚‰ãªã„ã€‚ã€Žmemcached key ä¸€è¦§ã€ã§ã‚°ã‚°ã£ã¦ä¸€ç•ªæœ€åˆã«å‡ºã¦ããŸã“ã®ãƒšãƒ¼ã‚¸ã‚’å‚è€ƒã«ã—ã¦stats it emsã‚³ãƒžãƒ³ãƒ‰ã‚’æ‰“ã£ã¦ã¿ãŸã‘ã©ä½•ãŒä½•ã ã‹... > set hoge 0 0 4 > hage STORED > stats it ems STAT
a2ikm 2015/02/10
memcached
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Introducing mcrouter: A memcached protocol router for scaling memcached deployments
Introducing mcrouter: A memcached protocol router for scaling memcached deployments Most web-based services begin as a collection of front-end application servers paired with databases used to manage data storage. As they grow, the databases are augmented with caches to store frequently-read pieces of data and improve site performance. Often, the ability to quickly access data moves from being an
a2ikm 2014/09/16
memcached

facebook

network
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Facebookã®æ•°åƒå°è¦æ¨¡ã®memcachedé‹ç”¨ã«ã¤ã„ã¦ - ã‚†ã†ã†ããƒ–ãƒã‚°
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a2ikm 2014/07/09
facebook

architecture

memcached

distributed
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æœ¬å½“ã¯æ€–ã„Memcached - Qiita
ã¯ã˜ã‚ã« ãƒ‡ãƒ¼ã‚¿ã‚¢ã‚¯ã‚»ã‚¹ã®é«˜é€ŸåŒ–ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³ã®ä¿æŒãªã©ã«éžå¸¸ã«é‡è¦ãªãƒã‚¸ã‚·ãƒ§ãƒ³ã‚’å ã‚ã¦ã„ã‚‹Memcached ç‰¹å¾´ã‚’ã‚ã’ã‚‹ã¨ã€é€Ÿã„å®‰ã„ç¾Žå‘³ã„ã§ã€AWSä¸Šã®ã‚µãƒ¼ãƒ“ã‚¹åŒ–ãªã©ã•ã‚Œã¦ãŠã‚Šã€éžå¸¸ã«æ‰±ã„ã‚„ã™ã„ãƒ—ãƒãƒ€ã‚¯ãƒˆãªã®ã§ã™ãŒã€Memcachedãã®ã‚‚ã®ãŒå˜ä¸€éšœå®³ç‚¹ã¨ãªã‚‰ãªã„ã‚ˆã†ã«å†—é•·åŒ–ã‚’æ¸¬ã£ãŸæ™‚ã«æ·±åˆ»ãªå•é¡ŒãŒç™ºç”Ÿã™ã‚‹å¯èƒ½æ€§ãŒã‚ã‚‹ã“ã¨ã‚’ã”å˜çŸ¥ã§ã—ã‚‡ã†ã‹ã€‚ ã‚·ã‚¹ãƒ†ãƒ ã«å¿ƒã‚ãŸã‚ŠãŒã‚ã‚‹æ–¹ã¯ä»Šã™ãä»£æ›¿æ‰‹æ®µã‚’æ¤œè¨Žã—ãªã‘ã‚Œã°ãªã‚Šã¾ã›ã‚“ã€‚ ã©ã†ã—ã¦ã‚‚Memcachedã‚’ä½¿ã„ãŸã„ã¨ã„ã†æ–¹ã¯ã“ã¡ã‚‰ã¸ ãã‚Œã§ã‚‚Memcachedã‚’ä½¿ã„ãŸã„ã‚ãªãŸã¸ å‰ææ¡ä»¶ ãã‚‚ãã‚‚å†—é•·åŒ–ã‚’ã—ãªã‘ã‚Œã°å•é¡Œãªã„ã¨ã„ã†é‹ç”¨ã¯ãã®æ™‚ç‚¹ã§æ€–ã„ã®ã§NG cacheæ©Ÿæ§‹ã¨ã„ã†æ€§è³ªä¸Šã€ãƒ‡ãƒ¼ã‚¿ãŒé£›ã¶ã®ã¯å•é¡Œãªã„(â€æ£â€ã¨ãªã‚‹ãƒ‡ãƒ¼ã‚¿ã‚’ä»–ã‹ã‚‰èªã¿å‡ºã™ã ã‘)ãŒã€èª¤ã£ãŸãƒ‡ãƒ¼ã‚¿ãŒèªã¿å‡ºã•ã‚Œã‚‹ã®ã‚’NGã¨ã™ã‚‹ Memcachedã‚’åˆ©ç”¨ã—ãŸæ™‚ã«åˆ©ç”¨ãƒŽãƒ¼ãƒ‰ã‚’æ±ºå®šã™ã‚‹ã®ã¯
a2ikm 2014/07/03
memcached
ãƒªãƒ³ã‚¯
Railsã§ã‚ãƒ£ãƒƒã‚·ãƒ¥ã«memcachedã‚’ä½¿ã† | è‡ªè»¢è»Šã§é€šå‹¤ã—ã¾ã—ã‚‡â™ªãƒ–ãƒã‚°
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a2ikm 2014/03/16
rails

memcached

unicorn

cache
ãƒªãƒ³ã‚¯
memcached ãŠã™ã™ã‚èµ·å‹•ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã¾ã¨ã‚ - blog.nomadscafe.jp
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a2ikm 2013/12/12
memcached
ãƒªãƒ³ã‚¯
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