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

cubicdaiya id:cubicdaiya

memcachedã«é–¢ã™ã‚‹cubicdaiyaã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (13)

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MySQL InnoDB memcached pluginã‚’ä½¿ã£ã¦ã¿ã‚ˆã†ã¨ã—ã¦ã‚„ã‚ãŸè©± - ãªã‚“ã‹ã‹ããŸã„
è¿½è¨˜ MySQL 5.7.19ã‹20ã‚ãŸã‚Šã§å–ã‚Šè¾¼ã¾ã‚ŒãŸãƒ‘ãƒƒãƒã«ã‚ˆã‚Šä»¥ä¸‹ã®å•é¡Œã¯ç™ºç”Ÿã—ãªããªã‚Šã¾ã—ãŸã€‚ã¤ã¾ã‚Šã¯ãƒã‚°ã§ã—ãŸã€‚ InnoDB memcached pluginã¯MySQL 5.6ã‹ã‚‰æè¼‰ã•ã‚ŒãŸæ©Ÿèƒ½ã§ã€Memcacheãƒ—ãƒãƒˆã‚³ãƒ«ã‚’ä½¿ã£ã¦InnoDBã«ãƒ‡ãƒ¼ã‚¿ã‚’èªã¿æ›¸ãã§ãã‚‹ä¾¿åˆ©æ©Ÿèƒ½ã§ã™ã€‚ ç°¡å˜ãªãƒ—ãƒãƒˆã‚³ãƒ«ãªãŸã‚SQLã‚ˆã‚Šé«˜é€Ÿã«å‹•ä½œã™ã‚‹ç‚¹ã€InnoDBã«è¨˜éŒ²ã§ãã‚‹ç‚¹ã€MySQLã®ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒåˆ©ç”¨ã§ãã‚‹ç‚¹ãªã©ã€ ã†ã¾ãä½¿ãˆã°ä¾¿åˆ©ãªä»•çµ„ã¿ã§ã™ãŒã€çµè«–ã‚’å…ˆã«æ›¸ã„ã¦ã—ã¾ã†ã¨ä½¿ãˆãªã‹ã£ãŸã¨ã„ã†è©±ã‚’ã—ã¾ã™ã€‚ ä½¿ãˆãªã‹ã£ãŸç†ç”± MySQL memcached pluginã‚’ä½¿ã£ãŸInnoDBã¸ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ãŒä½¿ãˆãªã‹ã£ãŸç†ç”±ã¯ã‚¯ãƒ©ãƒƒã‚·ãƒ¥ãŒå¤šç™ºã™ã‚‹ãŸã‚ã§ã™ã€‚ é«˜é€Ÿãªå‹•ä½œã€ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³æ©Ÿèƒ½ãªã©ã¯ã†ã¾ãå‹•ä½œã—ã¦ã„ã‚‹ã®ã§ã™ãŒã€ ã—ã°ã‚‰ãå‹•ä½œã•ã›ã¦ã„ã‚‹ã¨ get æ“ä½œã®éš›ã« SIGABRT ã¨
cubicdaiya 2016/10/07
mysql

memcached
ãƒªãƒ³ã‚¯
User-space Network Processing
3. â€¢ B3 k6 z 2 l â€¢ mTCP +4Intel4DPDK wi â€¢ github mTCP+4DPDK orz â€¢ Key4Value4Store w k Linux l â€¢ RADIS â†’ â€¢ d v orz â€¢ Memcached â†’ â€¢ d 3 4. A G 7 LNPMXXT 4 0 0.2 0.4 0.6 0.8 1 0 20 40 60 80 100 Key size (bytes) Key size CDF by appearance USR APP ETC VAR SYS 0 0.2 0.4 0.6 0.8 1 1 10 100 1000 10000 100000 1e+06 Value size (bytes) Value Size CDF by appearance USR APP ETC VAR SYS 0 0.2 0.4 0.6 0.8 1 1 10
cubicdaiya 2015/12/19
memcached

performance
ãƒªãƒ³ã‚¯
TCPã¨ã‚¿ã‚¤ãƒ ã‚¢ã‚¦ãƒˆã¨ç§ - Cybozu Inside Out | ã‚µã‚¤ãƒœã‚¦ã‚ºã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãƒ–ãƒã‚°
æœ¬éƒ¨é•·ã‚„å‰¯æœ¬éƒ¨é•·ã‚‚ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’ï¼ˆãŸã¾ã«ï¼‰ã™ã‚‹ã“ã¨ã§æœ‰åãªã‚µã‚¤ãƒœã‚¦ã‚ºã®é‹ç”¨æœ¬éƒ¨é•·ã€å±±æœ¬æ³°å®‡ã§ã™ã€‚ æœ‰åã˜ã‚ƒãªã„ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€ãƒ–ãƒã‚°ã«æ›¸ã„ãŸã®ã§æœ‰åã«ãªã‚‹ã¨ã„ã†ã“ã¨ã§ã”äº†æ‰¿ãã ã•ã„ã€‚ ä»Šå›žã¯ã€å…ˆæ—¥ç™ºç”Ÿã—ãŸ yrmcds ã«èµ·å› ã™ã‚‹éšœå®³ã®åŽŸå› ã¨å¯¾ç–ã‚’è§£èª¬ã—ã¾ã™ã€‚ yrmcds ã¨ã„ã†ã®ã¯ã€ã‚µã‚¤ãƒœã‚¦ã‚ºãŒé–‹ç™ºã—ã¦ã„ã‚‹ memcached äº’æ›ã®ã‚ãƒ¼ãƒãƒªãƒ¥ãƒ¼ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã§ã™ã€‚ å•é¡Œã®ç†è§£ã®ãŸã‚ã€ã¾ãš TCP é€šä¿¡ã§ã€é€šä¿¡å…ˆã®ç›¸æ‰‹ã®éšœå®³ã«ã©ã†å¯¾å¿œã™ã‚‹ã‹è§£èª¬ã—ã¾ã™ã€‚ ãƒ‡ãƒ¼ã‚¿ã®é€ä¿¡ä¸ã«ç›¸æ‰‹ãŒè½ã¡ã‚‹ã‚±ãƒ¼ã‚¹ ã“ã®ã‚±ãƒ¼ã‚¹ã¯ã•ã‚‰ã«äºŒã¤ã«åˆ†ã‹ã‚Œã¾ã™ã€‚ ç›¸æ‰‹ã® OS ã¯ç”Ÿãã¦ã„ã‚‹ãŒã€é€šä¿¡ã—ã¦ã„ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ãŒè½ã¡ã‚‹ã‚±ãƒ¼ã‚¹ ç›¸æ‰‹ã® OS ã”ã¨ï¼ˆã‚ã‚‹ã„ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã”ã¨ï¼‰è½ã¡ã‚‹ã‚±ãƒ¼ã‚¹ 1 ã¨ 2 ã®é•ã„ã¯ã€å‰è€…ã®å ´åˆ RST ãƒ‘ã‚±ãƒƒãƒˆãŒè¿”ã£ã¦ãã‚‹ã®ã«å¯¾ã—ã¦ã€å¾Œè€…ã§ã¯ãªã«ã‚‚è¿”ã£ã¦ã“ãªã„ç‚¹ã§ã™ã€‚å¾Œè€…ã®å ´åˆã€ack ã•ã‚Œãªã„
cubicdaiya 2015/11/29
memcached

yrmcds
ãƒªãƒ³ã‚¯
yrmcds 1.0.0 ã‚’ãƒªãƒªãƒ¼ã‚¹ã—ã¾ã—ãŸ - Cybozu Inside Out | ã‚µã‚¤ãƒœã‚¦ã‚ºã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãƒ–ãƒã‚°
@ymmt2005 ã“ã¨å±±æœ¬æ³°å®‡ã§ã™ã€‚åŽ»ã‚‹ 7 æœˆã« yrmcds ã¨ã„ã† memcached äº’æ›ãª KVS ã‚’å…¬é–‹ã—ãŸã“ã¨ã‚’ã”æ¡ˆå†…ã—ã¾ã—ãŸã€‚ãã‚Œã‹ã‚‰ 5 ãƒ¶æœˆçµŒã¡ã¾ã—ãŸãŒã€ä»Šå›žã¯å®‰å®šç‰ˆã¨ãªã‚‹ãƒãƒ¼ã‚¸ãƒ§ãƒ³ 1.0.0 ã‚’ãƒªãƒªãƒ¼ã‚¹ã‚’ã”æ¡ˆå†…ã—ã¾ã™ã€‚ ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã¯ã“ã¡ã‚‰ã‹ã‚‰ã©ã†ãž: https://github.com/cybozu/yrmcds/releases/tag/v1.0.0 0.9.0 ã‹ã‚‰ã®å¤‰æ›´ç‚¹ã‚’çŸãã¾ã¨ã‚ã‚‹ã¨ãƒã‚°ãŒãªããªã£ã¦ã€memcached ã‚ˆã‚Šå¤šåˆ†é«˜é€Ÿã«ãªã£ã¦ã„ã¾ã™ã€‚ã¡ã‚‡ã£ã¨é•·ã‚ã®è¨˜äº‹ã§ã™ãŒã€æœ«å°¾ã«ã„ã„ã“ã¨ãŒæ›¸ã„ã¦ã‚ã‚Šã¾ã™ã®ã§ã€æ˜¯éžã”ä¸€èªãã ã•ã„ã€‚ yrmcds ã®ç‰¹é•· ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ ã‚µãƒ¼ãƒãƒ¼ã‚µã‚¤ãƒ‰ãƒãƒƒã‚¯ No slabs ãã®ä»– memcached ã¨ã®å·®ç•° é‹ç”¨å®Ÿç¸¾ã¨æ€§èƒ½ ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ 0.9.0 ã‹ã‚‰ã®å¤‰æ›´ä¸€è¦§ ãƒã‚°å ±å‘Šã‚’å‹Ÿé›†ã—ã¾ã™ï¼ yrmcds ã®ç‰¹é•· y
cubicdaiya 2013/12/09
memcached
ãƒªãƒ³ã‚¯
yrmcds 0.9.0 ãƒªãƒªãƒ¼ã‚¹ - Cybozu Inside Out | ã‚µã‚¤ãƒœã‚¦ã‚ºã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãƒ–ãƒã‚°
@ymmt2005 ã“ã¨å±±æœ¬æ³°å®‡ã§ã™ã€‚ ä»Šå›žã¯ memcached äº’æ›ã§å†—é•·æ§‹æˆã‚’ç°¡å˜ã«çµ„ã‚ã‚‹è‡ªç¤¾è£½ KVS ã§ã‚ã‚‹ yrmcds ã®ãƒªãƒªãƒ¼ã‚¹ã‚’ã”æ¡ˆå†…ã—ã¾ã™ã€‚ ... ã“ã® Redis å…¨ç››ãªã”æ™‚ä¸–ã«ãªã‚“ã§ï¼Ÿã¨ã‹ã€repcached ã‚„ Kyoto Tycoon ãŒã‚ã‚‹ã˜ã‚ƒãªã„ã€ã¨ã„ã£ãŸãƒ„ãƒƒã‚³ãƒŸã®åµãŒèžãˆã¦ããã†ã§ã™ã€‚ã‚ã‹ã£ã¦ã¾ã™ã€ã‚ã‹ã£ã¦ã¾ã™ã‹ã‚‰ç‰©ã‚’æŠ•ã’ãªã„ã§ï¼ é †ã‚’è¿½ã£ã¦èª¬æ˜Žã—ã¾ã™ã®ã§ã€æ‰¹åˆ¤ã¯ãã‚Œã‹ã‚‰ã«ã—ã¦ãã ã•ã„ï¼ ä½•ãŒæ¬²ã—ã„ã®ã‹ ç§ã¯æ—¥é ƒ cybozu.com ã®ã‚¤ãƒ³ãƒ•ãƒ©ã§å‹•ä½œã™ã‚‹ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã‚’é–‹ç™ºã—ã¦ã„ã¾ã™ã€‚ãƒªãƒªãƒ¼ã‚¹å¾Œã‚‚ã†ã™ãï¼’å¹´ã«ãªã‚Šã¾ã™ãŒã€ãŠè”æ§˜ã§ 4,000 ç¤¾ä»¥ä¸Šã«ã”åˆ©ç”¨ã„ãŸã ãã¾ã§ã«ãªã‚Šã¾ã—ãŸã€‚å•†å£²ç¹ç››ã§å¬‰ã—ã„ã®ã§ã™ãŒã€é‹ç”¨å´ã¯æ—¥ã€…å¢—ãˆã‚‹ãƒ‡ãƒ¼ã‚¿ã¨ã‚¢ã‚¯ã‚»ã‚¹ã‚’æŒãã¹ãå¥®é—˜ã—ã¦ã„ã¾ã™ã€‚ ã“ã“ã®ã¨ã“ã‚å•é¡Œã«ãªã£ã¦ã„ãŸã®ãŒã€MySQL ã«ä¿å˜ã—ã¦ã„ã‚‹ã‚»ãƒƒã‚·ãƒ§ãƒ³æƒ…å ±ã§ã—ãŸã€‚ã‚¢ãƒ—ãƒª
cubicdaiya 2013/07/09
redis

memcached
ãƒªãƒ³ã‚¯
Facebook kisses DRAM goodbye, builds memcached for flash â€“ Old GigaOm
Q:Â What do you get when you mix Facebookâ€™s (s fb) extensive memcached usage with its strategy of â€œcold storageâ€ for infrequently accessed data? A: McDipper, a Facebook-built implementation of the popular memcached key-value store designed to run on flash memory rather than pricier DRAM. Memcached, for the unfamiliar, is an open-source key-value store that caches frequently accessed data in memory
cubicdaiya 2013/03/07
facebook

memcached
ãƒªãƒ³ã‚¯
Twemproxy â€“ Proxy For MemCached And Redis
cubicdaiya 2012/12/18
memcached

redis
ãƒªãƒ³ã‚¯
English (US)
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cubicdaiya 2012/07/11
memcached

twitter
ãƒªãƒ³ã‚¯
STF Distributed Object Storage - Home
Distributed Object Storage Made Easy! Use commodity hardware/software to build your own scala ble object storage! Learn more Â» What is STF? STF is a simple, yet very scala ble distribute storage system. STF powers sites like livedoor Blog, loctouch and many more, serving gigabytes after gigabytes of data. On one such system, it's serving 400Mbps of image at peak hours without a hitch. GET STF! STF i
cubicdaiya 2011/12/22
storage

q4m

memcached

apache

mysql

livedoor

stf
ãƒªãƒ³ã‚¯
http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt
Protocol -------- Clients of memcached communicate with server through TCP connections. (A UDP interface is also available; details are below under "UDP protocol.") A given running memcached server listens on some (configurable) port; clients connect to that port, send commands to the server, read responses, and eventually close the connection. There is no need to send any command to end the sessi
cubicdaiya 2011/02/09
memcached
ãƒªãƒ³ã‚¯
Maatkitã¯tcpdumpã‚’é£Ÿã¹ã‚‰ã‚Œã‚‹ä¸Šï¼Œmemcachedã‚‚å’€åš¼å‡ºæ¥ã‚‹ï¼Ž - ã¯ã¾ã•ã
maatkitã‚’ä¸€é€šã‚Šä½¿ã£ã¦ã¿ãŸãƒ¡ãƒ¢ - ã‚¯ã‚¯ãƒ©ãƒ•ãƒˆ ã§ç´¹ä»‹ã—ãŸMaatkitã®MySQLã®ã‚¯ã‚¨ãƒªçµ±è¨ˆãƒ„ãƒ¼ãƒ«mk-query-digestï¼Ž mk-query-digest /var/lib/mysql/db.slow.logã¨ã„ã†é¢¨ã«ã—ã¦ï¼ŒMySQLã®ã‚¹ãƒãƒ¼ãƒã‚°ã‚’é£Ÿã¹ã¦ # Query 73: 0.00 QPS, 0.00x concurrency, ID 0x2256C8F4C0666085 at byte 322977024 # This it em is included in the report because it matches --outliers. # pct total min max avg 95% stddev median # Count 0 10 # Exec time 0 20s 2s 2s 2s 2s 0 2s # Lock time 0 0 0 0 0 0
cubicdaiya 2010/10/28
mysql

tcpdump

maatkit

memcached
ãƒªãƒ³ã‚¯
memcachedãƒ—ãƒãƒˆã‚³ãƒ«ã®ã‚¹ãƒˆãƒªãƒ¼ãƒ ãƒ‘ãƒ¼ã‚µ - Blog by Sadayuki Furuhashi
memcachedã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¯ã»ã¨ã‚“ã©ã®è¨€èªžã§å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€key-valueãƒ™ãƒ¼ã‚¹ã®ä½•ã‹ã‚’ä½œã‚‹ã¨ãã«ã¯memcacheãƒ—ãƒãƒˆã‚³ãƒ«ã‚’ã‚µãƒãƒ¼ãƒˆã—ã¦ãŠãã¨ã€ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’å®Ÿè£…ã™ã‚‹æ‰‹é–“ãŒçœã‘ã‚‹ã®ã§ã‚¤ã‚±ã¦ã¾ã™ã€‚ ã—ã‹ã—memcachedã®ãƒ†ã‚ã‚¹ãƒˆãƒ—ãƒãƒˆã‚³ãƒ«ã®ã‚ˆã†ãªã€Œè¡Œã€ãŒä¸»ä½“ã¨ãªã£ã¦ã„ã‚‹ãƒ—ãƒãƒˆã‚³ãƒ«ã¯ã€ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’ä½¿ã£ãŸå®Ÿè£…ã§ã¯æ¯”è¼ƒçš„ç°¡å˜ã«å‡¦ç†ã§ãã‚‹ã®ã§ã™ãŒï¼ˆfgets(3)ã‚’ä½¿ã†ãªã©ï¼‰ã€selectã‚„epollãªã©ã‚’ä½¿ã£ãŸã‚¤ãƒ™ãƒ³ãƒˆé§†å‹•åž‹ã®å®Ÿè£…ã§ã¯éžå¸¸ã«é¢å€’ãªã“ã¨ã«ãªã‚Šã¾ã™ã€‚ï¼ˆä¸€åº¦ãƒ‘ãƒ¼ã‚¹ã—ã¦ã¿ã¦ã€ã©ã†ã‚‚å…¨éƒ¨ãƒ‡ãƒ¼ã‚¿ãŒåˆ°ç€ã—ã¦ã„ãªã„ã‚ˆã†ãªã‚‰ä¸€åº¦çŠ¶æ…‹ã‚’å¤‰æ•°ã«ä¿å˜ã—ã¦ã€æ¬¡ã«ãƒ‡ãƒ¼ã‚¿ãŒåˆ°ç€ã—ãŸã‚‰å¤‰æ•°ã‹ã‚‰çŠ¶æ…‹ã‚’å¾©å…ƒã—ã¦â€¦ï¼‰ ã‚¤ãƒ™ãƒ³ãƒˆé§†å‹•åž‹ã®å®Ÿè£…ã§ã¯ã€ãƒ‡ãƒ¼ã‚¿ã‚’æ¬¡ã€…ã«æŠ•ã’è¾¼ã‚“ã§ã„ãã¨å†…éƒ¨ã®çŠ¶æ…‹ãŒé·ç§»ã—ã¦ã„ãã€ã‚´ãƒ¼ãƒ«ã®çŠ¶æ…‹ã«ãŸã©ã‚Šç€ãã¨ãƒ‘ãƒ¼ã‚¹å®Œäº†ã€ã¨ã„ã†çŠ¶æ…‹é·ç§»åž‹ã®ãƒ‘ãƒ¼ã‚µãŒå¿…è¦ã«ãªã‚Šã¾ã™ã€‚ãã“ã§ã€Ragel Stat
cubicdaiya 2008/08/29
memcached
ãƒªãƒ³ã‚¯
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