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notae 2020/05/29
Distributed

Testing
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0 0 719 0 ã“ã® 4 å¹´é–“ã€Dropbox ã§ã¯ã€ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ— ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®åŒæœŸã‚¨ãƒ³ã‚¸ãƒ³ã‚’ç™½ç´™ã®çŠ¶æ…‹ã‹ã‚‰å†æ§‹ç¯‰ã—ã‚ˆã†ã¨æ‡¸å‘½ã«å–ã‚Šçµ„ã‚“ã§ãã¾ã—ãŸã€‚åŒæœŸã‚¨ãƒ³ã‚¸ãƒ³ã¯ã€ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ— ãƒ‘ã‚½ã‚³ãƒ³ä¸Šã® Dropbox ãƒ•ã‚©ãƒ«ãƒ€ã®é™°ã«éš ã‚ŒãŸé”æ³•ã§ã™ã€‚ã“ã‚Œã¯ã€Dropbox ã§æœ€ã‚‚é•·ãä½¿ã‚ã‚Œã¦ã„ã‚‹ã‚³ãƒ¼ãƒ‰éƒ¨åˆ†ã§ã‚ã‚Šã€æœ€ã‚‚é‡è¦ãªã‚³ãƒ¼ãƒ‰éƒ¨åˆ†ã® 1 ã¤ã§ã‚‚ã‚ã‚Šã¾ã™ã€‚ä»Šå›žã€æ–°ã—ã„åŒæœŸã‚¨ãƒ³ã‚¸ãƒ³ï¼ˆã‚³ãƒ¼ãƒ‰ãƒãƒ¼ãƒ ã€ŒNucleusã€ï¼‰ã‚’ã™ã¹ã¦ã® Dropbox ãƒ¦ãƒ¼ã‚¶ãƒ¼å‘ã‘ã«ãƒªãƒªãƒ¼ã‚¹ã•ã›ã¦ã„ãŸã ãã“ã¨ã‚’ã€ã“ã“ã«ç™ºè¡¨ã„ãŸã—ã¾ã™ã€‚ åŒæœŸã‚¨ãƒ³ã‚¸ãƒ³ã®æ›¸ãæ›ãˆã¯æœ¬å½“ã«å¤§å¤‰ãªä½œæ¥ã§ã€å¤šãã®ç’°å¢ƒã§ãƒžã‚¤ãƒŠã‚¹ã¨ã‚‚ãªã‚Šã†ã‚‹æ§‹æƒ³ã§ã‚ã£ãŸã“ã¨ã«é‘‘ã¿ã‚‹ã¨ã€æ‰‹æ”¾ã—ã§ç¥ã†æ°—æŒã¡ã«ã¯ãªã‚Œã¾ã›ã‚“ã€‚çµæžœçš„ã«ã¯ Dropbox ã«ã¨ã£ã¦ç´ æ™´ã‚‰ã—ã„ã‚¢ã‚¤ãƒ‡ã‚¢ã§ã‚ã£ãŸã‚ã‘ã§ã™ãŒã€ãã‚Œã¯ã€ç§ãŸã¡ãŒã“ã®ãƒ—ãƒã‚»ã‚¹ã«ã©ã®ã‚ˆã†ã«å–ã‚Šçµ„ã‚€ã¹ãã‹ã‚’ç†Ÿè€ƒã—ãŸã‹ã‚‰ã“ãã€ãŸã©ã‚Šç€
notae 2020/05/29
Distributed

Refactoring

Design

Testing

Dropbox

Rust
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ã‚²ãƒ¼ãƒ é–‹ç™ºã«æºã‚ã‚‹ Web ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã¸è´ˆã‚‹, æ£ã—ã„ Web ã‚µãƒ¼ãƒã®ä½œã‚Šæ–¹.
TECH x GAME COLLEGE #20 (https://techxgamecollege.connpass.com/event/129268/) ã§, ãƒ‡ãƒ¼ã‚¿ã®æ•´åˆæ€§ã‚’ä¿ã¤ã¨ã„ã†è¦³ç‚¹ã‹ã‚‰, ãƒžã‚¤ã‚¯ãƒã‚µãƒ¼ãƒ“ã‚¹ã‚„ RDBMS ã¨ã®ä»˜ãåˆã„æ–¹ãªã©ã®è©±ã—ã‚’ã—ã¾ã—ãŸ. ãã®éš›ã«ä½¿ç”¨ã—ãŸã‚¹ãƒ©ã‚¤ãƒ‰ã¨ãªã‚Šã¾ã™.
notae 2019/07/28
Distributed

NoSQL

DB
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åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã¨ã—ã¦è¦‹ãŸãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³ (September 30, 2016)
åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã¨ã—ã¦è¦‹ãŸãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³ é¦–è—¤ ä¸€å¹¸ 2016å¹´ 9æœˆ 30æ—¥(é‡‘) ã‚ªãƒ«ãƒˆãƒ—ãƒ©ã‚¹ãƒ©ãƒœ Tech ã‚»ãƒŸãƒŠãƒ¼ 2016 Fall ã‚¹ãƒ©ã‚¤ãƒ‰: shudo-blockchain-design-20160930.pdf (PDF ãƒ•ã‚¡ã‚¤ãƒ«, 414 KiB) Back to Publications ã®ãƒšãƒ¼ã‚¸ é¦–è—¤ã®ãƒšãƒ¼ã‚¸ å°Žå…¥ åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã¨ã—ã¦è¦‹ãŸãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³ åˆ©ç‚¹ã¨é›£ç‚¹ã€ãã®ç”±æ¥ ä»–ã®è¨è¨ˆã®å¯èƒ½æ€§ ã¾ã¨ã‚
notae 2016/09/30
Distributed
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Bugs Everywhere
What is Bugs Everywhere? Bugs Everywhere is a â€œdistributed bugtrackerâ€, designed to complement distributed revision control systems. By using distributed revision control as a backend for bug state, we gain several convenient features: Bugs and code that live on branches are tracked togetherâ€”when a branch is merged, both the code changes and bug changes that the branch contains are merged alongsid
notae 2016/09/28
åˆ†æ•£BTS

Distributed

Git
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IronFleet: åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ æ¤œè¨¼ã®æ–¹æ³•è«–
Spring Bootã«ã‚ˆã‚‹APIãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰æ§‹ç¯‰å®Ÿè·µã‚¬ã‚¤ãƒ‰ ç¬¬2ç‰ˆ ä½•åƒäººã‚‚ã®é–‹ç™ºè€…ãŒã€InfoQã®ãƒŸãƒ‹ãƒ–ãƒƒã‚¯ã€ŒPractical Guide to Building an API Back End with Spring Bootã€ã‹ã‚‰ã€Spring Bootã‚’ä½¿ã£ãŸREST APIæ§‹ç¯‰ã®åŸºç¤Žã‚’å¦ã‚“ã ã€‚ã“ã®æœ¬ã§ã¯ã€å‡ºç‰ˆæ™‚ã«æ–°ã—ããƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã‚ã‚‹ Spring Boot 2 ã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã€‚ã—ã‹ã—ã€Spring Boot3ãŒæœ€è¿‘ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã€é‡è¦ãªå¤‰...
notae 2016/02/05
Distributed

Proof
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åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã«ã¤ã„ã¦ã¯ã€ã‚‚ã†éšåˆ†ã¨å‰ã‹ã‚‰å¦ã³ãŸã„ã¨æ€ã£ã¦ã„ã¾ã—ãŸã€‚ãŸã ã€ãã‚Œã¯ä¸€åº¦é¦–ã‚’çªã£è¾¼ã‚“ã ã‚‰æœ€å¾Œã€ã‚´ãƒ¼ãƒ«ã®ãªã„è¿·è·¯ã«è¿·ã„è¾¼ã‚€ã‚ˆã†ãªã‚‚ã®ãªã®ã§ã™ã€‚ã©ã“ã¾ã§ã‚‚ç¶šã„ã¦ã„ã‚‹ã‚¦ã‚µã‚®ã®ç©´ã®ã‚ˆã†ãªã‚‚ã®ã§ã™ã€‚åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã«é–¢ã™ã‚‹æ–‡çŒ®ã¯æ˜Ÿã®æ•°ã»ã©å˜åœ¨ã—ã¾ã™ã€‚æ§˜ã€…ãªå¤§å¦ã‹ã‚‰ãŸãã•ã‚“ã®è«–æ–‡ãŒç™ºè¡¨ã•ã‚Œã¦ã„ã‚‹ã°ã‹ã‚Šã§ãªãã€è†¨å¤§ãªæ•°ã®æ›¸ç±ã‚‚ã‚ã‚‹ã®ã§ã™ã€‚ç§ã®ã‚ˆã†ãªå…¨ãã®åˆå¿ƒè€…ã«ã¯ã€ã©ã®è«–æ–‡ã‚’èªã‚“ã ã‚‰ã„ã„ã®ã‹ã€ã©ã®æ›¸ç±ã‚’è²·ã£ãŸã‚‰ã„ã„ã®ã‹ã€è¦‹å½“ã‚‚ã¤ãã¾ã›ã‚“ã€‚ ãã‚“ãªã¨ãã€ä¸€éƒ¨ã®ãƒ–ãƒã‚¬ãƒ¼ãŒã€ åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ ï¼ˆãã‚ŒãŒã©ã†ã„ã†æ„å‘³ã§ã‚ã‚Œï¼‰ã«ãªã‚‹ãªã‚‰çŸ¥ã£ã¦ãŠãã¹ãè«–æ–‡ã¨ã„ã†ã‚‚ã®ã‚’æŽ¨å¥¨ã—ã¦ã„ã‚‹ã®ã‚’è¦‹ã¤ã‘ã¾ã—ãŸã€‚ãã®ä¸€éƒ¨ã‚’ç´¹ä»‹ã—ã¾ã—ã‚‡ã†ã€‚ FLP , Zab , Time, Clocks and the Ordering of Events in a Distributed Systems , Viewstamped
notae 2016/01/21
Distributed
ãƒªãƒ³ã‚¯
https://www.ietf.org/proceedings/94/slides/slides-94-iss-1.pdf
notae 2015/11/03
Networking

Storage

Distributed

Dropbox

Protocol

Filesystem
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How to hack metacpan.org
YAPC::Asia 2014 Reject con LT 2014-09-03
notae 2015/07/15
ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãƒ‡ã‚·ãƒªã‚¢ãƒ©ã‚¤ã‚¶åˆ©ç”¨ãŒä»»æ„ã‚³ãƒ¼ãƒ‰å®Ÿè¡Œã«ã¤ãªãŒã‚‹å±é™ºæ€§

Security

Perl

Distributed
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HDFS HA ã‚»ãƒŸãƒŠãƒ¼ #hadoop
2013/05/30ã«é–‹å‚¬ã—ãŸã€HDFS HA(High Availability: é«˜å¯ç”¨æ€§)ã‚»ãƒŸãƒŠãƒ¼ã®è³‡æ–™ã§ã™ã€‚åŒã˜ãã”ç™»å£‡é ‚ã„ãŸã€æ ªå¼ä¼šç¤¾ã‚µã‚¤ãƒãƒ¼ã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆã®ä¸ŠåŽŸèª æ§˜ã®è³‡æ–™ã¯â†“ã§ã™ã€‚ http://www.slideshare.net/makotouehara39/cl-st-20130530nnhaRead less
notae 2015/07/07
Filesystem

Distributed
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Winnyã®é€šä¿¡ã‚’ç‰¹å®šã™ã‚‹æ–¹æ³•ã«ã¯ï¼Œã€Œæµã‚Œã‚‹ãƒ‘ã‚±ãƒƒãƒˆã®ãƒ‘ã‚¿ãƒ¼ãƒ³ï¼ˆãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ãƒ»ãƒ‘ã‚¿ãƒ¼ãƒ³ï¼‰ã‚’èª¿ã¹ã‚‹æ–¹æ³•ã€ã¨ï¼Œã€Œãƒ‘ã‚±ãƒƒãƒˆã®ä¸èº«ã‚’èª¿ã¹ã¦Winnyã®ãƒ‘ã‚±ãƒƒãƒˆã§ã‚ã‚‹ã“ã¨ã‚’ç¢ºèªã™ã‚‹æ–¹æ³•ã€ã®2é€šã‚ŠãŒã‚ã‚‹ã€‚å‰è€…ã¯ï¼Œç›´æŽ¥ä¸èº«ã®ãƒ‡ãƒ¼ã‚¿ã‚’ã®ãžã„ã¦ã„ã‚‹ã‚ã‘ã§ã¯ãªã„ãŸã‚ï¼Œé€šä¿¡ã®ç§˜å¯†ã‚’å®ˆã‚‹ã¨ã„ã†å¤§å‰æãŒã‚ã‚‹ãƒ—ãƒãƒã‚¤ãƒ€ãŒWinnyã‚’è¦åˆ¶ã™ã‚‹éš›ã«ä½¿ã£ã¦ã„ã‚‹ã€‚ã—ã‹ã—ï¼ŒWinnyã®é€šä¿¡ã‚’ç¢ºå®Ÿã«ç‰¹å®šã™ã‚‹ãªã‚‰ï¼Œå¾Œè€…ã®æ–¹æ³•ãŒãƒ™ã‚¹ãƒˆã§ã‚ã‚‹ã€‚å®Ÿéš›ã«Winnyã®é€šä¿¡ã‚’è§£èªã§ãã‚‹ã®ã‹ï¼ŒWinnyä½œè€…ã®é‡‘åå‹‡æ°ã®è‘—æ›¸ã€ŽWinnyã®æŠ€è¡“ã€ã‚„ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã§å¾—ã‚‰ã‚ŒãŸæƒ…å ±ãªã©ã‚’å‚è€ƒã«æŒ‘æˆ¦ã—ã¦ã¿ãŸã€‚ Winnyï¼ˆã‚¦ã‚¤ãƒ‹ãƒ¼ï¼‰åŒå£«ã®é€šä¿¡ã¯ã™ã¹ã¦æš—å·åŒ–ã•ã‚Œã¦ã„ã‚‹ã€‚ã“ã®ãŸã‚ï¼Œæµã‚Œã‚‹ãƒ‘ã‚±ãƒƒãƒˆã‚’ã®ãžã„ã¦ã‚‚ï¼Œå†…å®¹ãŒã©ã‚“ãªã‚‚ã®ãªã®ã‹ã ã‘ã§ãªãï¼ŒWinnyã®é€šä¿¡ãªã®ã‹ã©ã†ã‹ã‚‚ï¼Œã²ã¨ç›®ã§ã¯ã‚ã‹ã‚‰ãªã„ã€‚WinnyãŒæŽ¡ç”¨ã—ã¦ã„ã‚‹æš—å·ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ RC4ã¯ï¼ŒWebã‚¢ã‚¯ã‚»ã‚¹ã‚„
notae 2015/05/26
P2P

Networking

Distributed
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4Gamer.net â€” [CEDEC 2010]ãƒãƒƒãƒˆã‚²ãƒ¼ãƒ ã®è£ã§ä½•ãŒèµ·ã“ã£ã¦ã„ã‚‹ã®ã‹ã€‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã‹ã‚‰è¦‹ãŸï¼Œã‚²ãƒ¼ãƒ ãƒ‡ã‚¶ã‚¤ãƒ³ã®å¤§åŽŸå‰‡
[CEDEC 2010]ãƒãƒƒãƒˆã‚²ãƒ¼ãƒ ã®è£ã§ä½•ãŒèµ·ã“ã£ã¦ã„ã‚‹ã®ã‹ã€‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã‹ã‚‰è¦‹ãŸï¼Œã‚²ãƒ¼ãƒ ãƒ‡ã‚¶ã‚¤ãƒ³ã®å¤§åŽŸå‰‡ ç·¨é›†éƒ¨ï¼štouge å…ˆé€±è¡Œã‚ã‚ŒãŸã€ŒCEDEC 2010ã€ã®è¬›æ¼”ã‹ã‚‰ã€Œãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚²ãƒ¼ãƒ ã®ä»•çµ„ã¿ã¨ã‚²ãƒ¼ãƒ ãƒ‡ã‚¶ã‚¤ãƒ³ã€ã¨é¡Œã•ã‚ŒãŸã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚’ç´¹ä»‹ã—ã‚ˆã†ã€‚ ã€ŒCEDEC 2010ã€å…¬å¼ã‚µã‚¤ãƒˆ ç™»å£‡ã—ãŸã®ã¯ï¼Œã‚»ã‚¬ç¬¬ä¸‰CSç ”ç©¶é–‹ç™ºéƒ¨ã®ãƒ†ã‚¯ãƒ‹ã‚«ãƒ«ãƒ‡ã‚£ãƒ¬ã‚¯ã‚¿ãƒ¼ ç¯€æ”¿æšç”Ÿæ°ã€‚ç¯€æ”¿æ°ã¯ã€Œãƒ•ã‚¡ãƒ³ã‚¿ã‚·ãƒ¼ã‚¹ã‚¿ãƒ¼ ã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã€ã‚·ãƒªãƒ¼ã‚ºã®ãƒ—ãƒã‚°ãƒ©ãƒžã¨ã—ã¦ï¼Œé•·å¹´ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚²ãƒ¼ãƒ ï¼ˆã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã‚²ãƒ¼ãƒ ï¼‰ã®é–‹ç™ºã‚’æ‰‹ãŒã‘ã¦ãã¦ããŸäººç‰©ã ã€‚ã“ã®è¬›æ¼”ã§ã¯ï¼Œãã®çµŒé¨“ã‹ã‚‰ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚²ãƒ¼ãƒ ã®ã‚²ãƒ¼ãƒ ãƒ‡ã‚¶ã‚¤ãƒ³ã«ãŠã„ã¦ï¼Œæ°—ã‚’ã¤ã‘ã‚‹ã¹ãã“ã¨ã«ã¤ã„ã¦ã®ãƒ¬ã‚¯ãƒãƒ£ãƒ¼ãŒè¡Œã‚ã‚ŒãŸã€‚ãã®å†…å®¹ã«ã¯ä¸€éƒ¨æŠ€è¡“çš„ãªè¦ç´ ã‚’å«ã‚€ã‚‚ã®ã®ï¼ŒåŸºæœ¬çš„ã«ã¯ãƒ—ãƒ©ãƒ³ãƒŠãƒ¼ã«å‘ã‘ãŸã‚‚ã®ã§ã‚ã‚‹ãŸã‚ï¼Œç†è§£ã«ãã‚Œã»ã©å°‚é–€çš„ãªçŸ¥è˜ã¯å¿…è¦ãªã„ã€‚ã„ã‚ã°ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®åŸºç¤Žã®åŸºç¤Žã«ã‚
notae 2015/05/21
Game

Distributed

Networking
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ã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã‚²ãƒ¼ãƒ ã®ä»•çµ„ã¿ã‚„å·¥å¤«ã‚’èª¿ã¹ã¦ã¿ãŸã®ã‚’ç¤¾å†…å‹‰å¼·ä¼šã§ç™ºè¡¨ã—ãŸã€‚ã¨ãã®ã‚¹ãƒ©ã‚¤ãƒ‰ã€‚ã®å…¬é–‹ç”¨ã€‚ ã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã‚²ãƒ¼ãƒ ã®ç¨®åˆ¥ã¨ãã‚Œãžã‚Œã®ä»•çµ„ã¿ã«ã¤ã„ã¦ã®è©±ã¨ã€ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã«ãªã£ã¦ã„ã‚‹Quakeã®ä»•çµ„ã¿ã®è©±ã€ã¨ã„ã†2ã¤ã®è©±ãŒä¸»ãªãƒˆãƒ”ãƒƒã‚¯Read less
notae 2015/05/21
Game

Distributed

Networking
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24 Days of GHC Extensions: Static Pointers
Today we start to wrap up 24 Days of GHC Extensions with the final guest post, this time from Mathieu Boespflug of Tweag I/O. Mathieu, along with his colleagues Facundo DomÃnguez and Alexander Vershilov, has been working with the GHC team on a new extension - in fact, so new, you wonâ€™t even find this in a stable release of GHC! In todayâ€™s post, weâ€™ll have a look at a new type of pointer that can b
notae 2014/12/24
Haskell

GHC

Distributed
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Notes on Distributed Systems for Young Bloods â€“ Something Similar
Iâ€™ve been thinking about the lessons distributed systems engineers learn on the job. A great deal of our instruction is through scars made by mistakes made in production traffic. These scars are useful reminders, sure, but itâ€™d be better to have more engineers with the full count of their fingers. New systems engineers will find the Fallacies of Distributed Computing and the CAP theorem as part of
notae 2014/12/13
Distributed
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åˆ†æ•£ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æŠ€è¡“Cephã®æœ€æ–°æƒ…å ±
3. OpenStack seminar @Lenovo Enterprise Solutions Center 2014å¹´12æœˆ19æ—¥(é‡‘)16æ™‚ï½žã€ŒRHEL OpenStack é‹ç”¨ç®¡ç†ã®ãƒ„ãƒœã€ Red Hat Forum ã«ã¦å¤§å¥½è©•ã§ã—ãŸã€ŒOpenStack ãƒãƒ³ã‚ºã‚ªãƒ³ã€ã®ç¶šç·¨ã‚»ãƒŸãƒŠãƒ¼ã§ã™ã€‚ æ›´ã«å…·ä½“çš„ãªã€ŒRed Hat ã®OpenStackã‚’æœ¬ç•ªç’°å¢ƒã§ç¨¼åƒã™ã‚‹éš›ã®ãƒã‚¤ãƒ³ãƒˆã€ã«ã¤ã„ã¦ç´¹ä»‹ã•ã›ã¦ã„ ãŸã ãã¾ã™ã€‚ ãŠç”³è¾¼ã¿â‡’ http://bit.ly/1xODIPE 2015å¹´1æœˆ23æ—¥(é‡‘)13æ™‚ï½ž é–‹å‚¬äºˆå®š* Intel On Ramp RHEL OSP ãƒãƒ³ã‚ºã‚ªãƒ³ç ”ä¿® Red Hat Forum ã§æº€å“¡ã§çµ‚äº†ã—ãŸã€ŒOpenStack ãƒãƒ³ã‚ºã‚ªãƒ³ã€ã®Rerunã§ã™ã€‚ OpenStackã‚’ä½¿ã£ã¦ã¿ãŸã„æŠ€è¡“è€…ã®æ–¹ã«ãŠã‚¹ã‚¹ãƒ¡ã®ã‚»ãƒŸãƒŠãƒ¼ã§ã™ã€‚ 2015å¹´2æœˆ13æ—¥(é‡‘)16æ™‚ï½ž é–‹å‚¬äºˆå®š*
notae 2014/12/12
Filesystem

Distributed

Storage
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Home
Get Started Learn how to build concurrent, distributed programs with Cloud Haskell Learn more Cloud Haskell: Erlang-style concurrent and distributed programming in Haskell. The Cloud Haskell Platform consists of a generic network transport API, libraries for sending static closures to remote nodes, a rich API for distributed programming and a set of platform libraries modelled after Erlangâ€™s Open
notae 2014/12/10
Haskell

Distributed

Concurrent

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Auroraã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã®QuorumåŽŸç† - yoshidashingo
cloudpackã‚¨ãƒãƒ³ã‚¸ã‚§ãƒªã‚¹ãƒˆã®å‰ç”°çœŸå¾ï¼ˆ@yoshidashingoï¼‰ã§ã™ã€‚ ä»Šå›žç™ºè¡¨ã«ãªã£ãŸ Amazon RDS for Auroraã€‚æœ€å¤§ã®ç‰¹å¾´ã¯ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ãŒå¾“æ¥ã®RDS(Multi-AZ)ã«ãŠã‘ã‚‹ã€Œå®Œå…¨åŒæœŸãªãƒŸãƒ©ãƒ¼ãƒ‡ã‚£ã‚¹ã‚¯åž‹ã®ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã€æ–¹å¼ã§ãªãã€ã€ŒQuorumãƒ™ãƒ¼ã‚¹ã®éžåŒæœŸãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã€æ–¹å¼ãŒæŽ¡ç”¨ã•ã‚ŒãŸç‚¹ã§ã™ã€‚ Quorumã®æ¦‚å¿µ Quorumè‡ªä½“ã®æ¦‚å¿µã®èª¬æ˜Žã¯Wikiãªã©ã‚’å‚ç…§ã—ã¦ãã ã•ã„ã€‚ãƒŽãƒ¼ãƒ‰é–“ã§æŠ•ç¥¨ã‚’è¡Œã„ã€å®šè¶³æ•°ãŒæƒã£ãŸå‡¦ç†ã‚’å®Ÿè¡Œï¼ç ´æ£„ã™ã‚‹ã¨ã„ã†è€ƒãˆæ–¹ã§ã™ã€‚ Quorum - Wikipedia åŒæœŸåž‹ã®ãƒŸãƒ©ãƒ¼ãƒ‡ã‚£ã‚¹ã‚¯åž‹ã‹ã‚‰éžåŒæœŸã®Quorumåž‹ã¸ Auroraä»¥å¤–ã®RDSã®Multi-AZé…å‚™ã¯ã€ãƒžã‚¹ã‚¿ãƒ¼ãƒŽãƒ¼ãƒ‰ã®ãƒ‡ã‚£ã‚¹ã‚¯ã¸ã®æ›¸ãè¾¼ã¿ã‚’ãƒ–ãƒãƒƒã‚¯ãƒ¬ãƒ™ãƒ«ã§ã‚¹ã‚¿ãƒ³ãƒã‚¤å´ã«é©ç”¨ã™ã‚‹å®Œå…¨åŒæœŸãªãƒ•ã‚£ã‚¸ã‚«ãƒ«ãƒ¬ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’è¡Œã£ã¦ã„ã¾ã™ã€‚ã“ã‚Œã«ã¯ã„ãã¤ã‹ã®èª²é¡ŒãŒè€ƒãˆã‚‰
notae 2014/11/29
Distributed

Storage
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Sharding ã‚’ä½¿ã„ã“ãªã™ãŸã‚ã®5ã¤ã®Tips - doryokujin's blog
@doryokujinã§ã™ã€‚ä»Šæ—¥ã‚‚ç›¸å¤‰ã‚ã‚‰ãšMongo DBã®ã€ãã—ã¦Shardingã«é–¢ã™ã‚‹è¨˜äº‹ã‚’æ›¸ã“ã†ã¨æ€ã„ã¾ã™ã€‚ â€¦ã¨ã€ãã®å‰ã«ãŠçŸ¥ã‚‰ã›ã§ã™ï¼6æœˆã¯2ã¤ã®Mongo DBå‹‰å¼·ä¼šã‚’äºˆå®šã—ã¦ãŠã‚Šã¾ã™ã€æ˜¯éžã”å‚åŠ ä¸‹ã•ã„ï¼ ãƒ»2011å¹´6æœˆ11æ—¥ï¼ˆåœŸï¼‰ ã€Œç¬¬4å›ž Mongo DB å‹‰å¼·ä¼š in Tokyoã€@ãƒ•ãƒ¥ãƒ¼ãƒãƒ£ãƒ¼ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒˆ ãƒ»2011å¹´6æœˆ28æ—¥ï¼ˆç«ï¼‰ã€Œç¬¬1å›ž Mongo DB ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãƒªãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã€@PFI ã•ã¦ã€ãã‚Œã§ã¯æœ¬é¡Œã«å…¥ã‚ŠãŸã„ã¨æ€ã„ã¾ã™ã€‚ Mongo DBã®Shardingã¨ã„ãˆã°ã€ ãƒ»åˆæœŸè¨å®šã‚„Shardã®è¿½åŠ ãƒ»å‰Šé™¤ã¨ã„ã£ãŸå°Žå…¥ã®å®¹æ˜“ã• ãƒ»Shardã®é¢å€’ã‚’Mongoå´ãŒãšã£ã¨è¦‹ã¦ãã‚Œã‚‹ã¨ã„ã†ç®¡ç†ã®å®¹æ˜“ã• ã‚’å‚™ãˆã¦ã„ã‚‹ã¨è¨€ã†ã“ã¨ã§èˆˆå‘³ã‚’æŒã£ã¦ãŠã‚‰ã‚Œã‚‹æ–¹ã‚‚å¤šæ•°ã„ã‚‹ã¨æ€ã„ã¾ã™ã€‚ ã—ã‹ã—ãã®ä¸€æ–¹ã§å®Ÿéš›ã«Shardingç’°å¢ƒã‚’å°Žå…¥ã—ã¦ã„ã‚‹æ–¹ã€…ã®ä¸ã®å¤šãã¯ã€éé‡ã™ã‚‹æ§˜ã€…ãªä¸éƒ½åˆã‚„ä¸æ•´
notae 2014/11/10
DB

Distributed
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GitHub - cockroachdb/cockroach: CockroachDB â€” the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.
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notae 2014/11/09
Distributed

DB
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