锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#22269;&#20135;&#26085;&#38889;&#27431;&#32654;&#22312;&#32447;&#30475;&#44;&#26085;&#26412;&#19981;&#21345;&#20813;&#36153;&#19968;&#21306;&#44;&#33394;&#38401;&#32508;&#21512;&#20234;&#20154;&#97;&#118;</title><link>http://www.aygfsteel.com/iamtin/category/26582.html</link><description>You are coming a long way, baby~Thinking, feeling, memory...</description><language>zh-cn</language><lastBuildDate>Tue, 16 Oct 2007 01:45:11 GMT</lastBuildDate><pubDate>Tue, 16 Oct 2007 01:45:11 GMT</pubDate><ttl>60</ttl><item><title>Twitter鐨勬�ц兘璋冧紭鐨勫叧閿偣</title><link>http://www.aygfsteel.com/iamtin/archive/2007/10/16/scaling_twitter_the_key_points.html</link><dc:creator>Tin</dc:creator><author>Tin</author><pubDate>Tue, 16 Oct 2007 00:42:00 GMT</pubDate><guid>http://www.aygfsteel.com/iamtin/archive/2007/10/16/scaling_twitter_the_key_points.html</guid><wfw:comment>http://www.aygfsteel.com/iamtin/comments/153144.html</wfw:comment><comments>http://www.aygfsteel.com/iamtin/archive/2007/10/16/scaling_twitter_the_key_points.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.aygfsteel.com/iamtin/comments/commentRss/153144.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/iamtin/services/trackbacks/153144.html</trackback:ping><description><![CDATA[<p>Twitter鐨勬按騫蟲墿灞曠殑涓�浜涘叧閿偣錛岃櫧鐒跺畠鏄釜RoR搴旂敤錛屼絾鏄繖浜涘緩璁粷瀵規槸鏀句箣鍥涙搗鑰岀殕鍑嗙殑錛岄潪甯稿ソ鐨勬�葷粨銆?br />
鍥犱負騫村垵Twitter鏇劇粡閬囧埌浜嗘�ц兘鐡墮錛岃�屼笖鍑犱箮鏉熸墜鏃犵瓥銆傚綋鍒濆緢澶氫漢寮�濮嬫��鐤慠uby鐨勬�ц兘闂錛岃�屽悗Twitter绔欒搗鏉ヤ簡 ^__^</p>
<p>鏈夋椂闂寸殑鏈嬪弸鐪嬬湅榪欎釜slide錛?a >http://www.slideshare.net/Blaine/scaling-twitter</a>錛屾病鏈夋椂闂寸殑鐪嬬湅鎴戠殑鎽樿銆?br />
<br />
寮�鍙戯細<br />
1銆佷竴瀹氳嫻嬭瘯錛佷竴瀹氳鏃╃偣嫻嬭瘯錛佷竴瀹氳鏃╃偣嫻嬭瘯錛佸惁鍒欎綘灝辨瀹氫簡銆備笉瑕佸瓨浠諱綍渚ュ垢蹇冪悊錛屼粠欏圭洰鐨勫紑濮嬪氨鍐欏ソ嫻嬭瘯銆?br />
2銆佸浠諱綍閮ㄥ垎閮借嫻嬭瘯銆傝繕鏄祴璇曪紒<br />
3銆佹�ц兘嫻嬭瘯瑕佷氦緇欑敤鎴鋒潵鍋氥�傞偅鏍鋒墠鏈夋剰涔夈�傛墍浠ヨ鍋氬ソlog銆傜敤濂藉垎鏋愬伐鍏鳳細Munin錛堟湇鍔″櫒鍐呭瓨鍗犵敤鐩戞帶錛夈�丯agios錛堟湇鍔″櫒鏈嶅姟緗戠粶鐘舵�佺洃鎺э級銆丄WStats &amp; Google Analytics銆侀敊璇棩蹇椼�佸彂鐜頒簡閿欒椹笂榪涘叆闂璺熻釜緋葷粺錛圱rac銆丣ira&#8230;&#8230;澶浜嗭紝浣嗘槸鏈�濂芥湁涓�涓級銆?/p>
<p><br />
鏋舵瀯錛?br />
1銆佷嬌鐢ㄥ彲浠ュ垎鍖虹殑鏋舵瀯銆傛寜鐓ф灦鏋勪笂鐨勫姛鑳芥竻鏅扮殑鍒嗗尯銆傝繖鎰忓懗鐫�浣犲彲浠ラ�氳繃鏇挎崲涓�涓疄鐜版潵鏀硅繘鎬ц兘錛屽洜涓烘�ц兘鍜屽鏉傚害寰�寰�鏄笉鍙吋寰楃殑銆?/p>
<p>瀵逛簬鏁版嵁搴擄細<br />
1銆佸敖閲忎笉瑕佸垎甯冨紡鏁版嵁搴擄紝鍖呮嫭鏁版嵁搴撳垎鍖恒�傛渶濂介�氳繃鎻愰珮鍗曞彴鏈嶅姟鍣ㄧ殑鎬ц兘鎻愬崌榪欎釜鑺傜偣鐨勬�ц兘銆傛洿閲嶈鐨勬槸鏌ヨ浼樺寲銆傞�氳繃澶囦喚鏈嶅姟鍣ㄨВ鍐沖崟鐐規晠闅溿�?br />
2銆佸where瀛愬彞涓殑瀛楁澧炲姞index銆傦紙榪欎釜褰撶劧浜嗭級<br />
3銆佹墎騫沖寲鏌ヨ錛屾瘮濡備竴涓猽ser鏈夊緢澶氭湅鍙嬶紝鏌ヤ竴涓漢鐨勬湅鍙嬪鏋滈�氳繃澶栭敭浼氭氮璐瑰緢澶氭�ц兘銆傚彲浠ユ妸ids搴忓垪鍖栦負1,2,3榪欐牱錛岀劧鍚庣敤like鏌ヨ閫熷害鏇村揩銆?br />
4銆佷竴瀹氳浼樺寲浣犵殑SQL錛屼笉瑕佸瘎甯屾湜浜嶰RM緇欎綘瑙ｅ喅錛堜笉綆℃槸DataMapper銆丄ctiveRecord鎴栬�匲nitOfWork錛夈�?/p>
<p>Cache錛?br />
1銆佷竴瀹氳鑰冭檻Cache錛屾渶閲嶈鐨勬槸棰嗗煙瀵硅薄鐨凜ache錛屼竴瀹氳鑰冭檻Memcache錛屽Memcached銆?br />
2銆佸簲璇ユ湁90%鐨勬煡璇㈠彲浠ache銆?br />
3銆佷絾鏄娉ㄦ剰Cache瀹炴晥闂錛堣鍙婃椂鏍囨敞瀹炴晥錛夛紝榪欎釜鏄釜闅劇偣涔熸槸涓噸鐐廣�?br />
4銆佸彲浠ヨ�冭檻鐢∕essage鏉ユ爣璁板疄鏁堬紙榪欐牱鍙互淇濊瘉寮傛錛屾棤闃誨鐨勬寜鐓ч『搴忕殑璁╂暟鎹け鏁堬級錛屾嵁縐頒篃涓嶆槸寰堥毦銆?/p>
<p>Messaging錛?br />
1銆佹販鍚堝簲鐢ㄣ�備笉鐢ㄥ幓鐪婮ava鐨凮penFire浜嗭紝鍗充嬌瀹冨緢濂斤紝瀹屽叏鍙互鑰冭檻erlang鐨別jabberd浜嗭紝淇勭綏鏂殑浜х墿銆?br />
2銆佹帓闃熼棶棰樻湁寰堝瑙ｅ喅鏂規錛欰ctiveMQ銆丷abbitMQ銆丮ySQL + Lightweight Locking銆丏rb錛坒or ruby錛?/p>
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