ï»??xml version="1.0" encoding="utf-8" standalone="yes"?>中文字幕系列一区,精品福利一区,国产一区导航http://www.aygfsteel.com/xiaomage234/category/54660.html生命本就是一‹Æ¡å‡„¾ŸŽçš„漂æµåQŒè®°å¿†ä¸æ”¾ä¸ä¸‹çš„åQŒæ°¸˜qœæ˜¯å©æ时代的那一份浪漫与¾U¯çœŸåQ?/description>zh-cnMon, 15 May 2017 20:16:46 GMTMon, 15 May 2017 20:16:46 GMT60- IM¾pÈ»Ÿæž¶æž„设计之浅è§ã€è{ã€?/title><link>http://www.aygfsteel.com/xiaomage234/archive/2017/05/15/432528.html</link><dc:creator>ž®é©¬æ?/dc:creator><author>ž®é©¬æ?/author><pubDate>Mon, 15 May 2017 06:22:00 GMT</pubDate><guid>http://www.aygfsteel.com/xiaomage234/archive/2017/05/15/432528.html</guid><wfw:comment>http://www.aygfsteel.com/xiaomage234/comments/432528.html</wfw:comment><comments>http://www.aygfsteel.com/xiaomage234/archive/2017/05/15/432528.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/xiaomage234/comments/commentRss/432528.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/xiaomage234/services/trackbacks/432528.html</trackback:ping><description><![CDATA[from:http://mobile.51cto.com/hot-439693.htm<br /><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">背景åQšé™¤åŽÕd¤§å鼎鼎的QQ˜q™æ¬¾åÏx—¶èŠå¤©å·¥å…·åQŒè¿˜æœ‰è®¸å¤šç»†åˆ†è¡Œä¸šçš„IMåQŒæ¯”如淘å®é˜¿é‡Œæ—ºæ—ºã€ç½‘易æˆö泡ã€YYè¯éŸ³......。æ°å·§å…¬åæ€ñ”å“也è¦å¼€å‘一‹Æ‘ÖŸºäºŽæˆ‘ 们自å·Þp¡Œä¸šçš„¾c»IM¾pÈ»ŸåQŒå¾ˆæœ‰å¹¸æˆ‘担当了˜q™ä¸ªäº§å“的架构师åQŒæ ¸å¿ƒä»£ç 编写ã€å®žçŽ°è€…。下é¢æŠŠæˆ‘è¿‘òq´æ¥ä»ŽæŠ€æœ¯ä¸Šæˆ‘对IM¾pÈ»ŸåQˆå³æ—¶æ¶ˆæ¯çš„ä¼ è¾“åQŒä¸åŒ…括è¯éŸ³åQŒè§†é¢‘，文äšgçš„ä¼ è¾“ï¼‰çš„ç†è§£å’Œè®¾è®¡åˆ†äín出æ¥åQŒæµ…薄之è§ï¼Œæœ›å¤§å®¶åˆ«è§ç¬‘åQŒæ¬¢˜qŽç»™å‡ºæ‰¹è¯„æ„è§ã€?/p><h3>一.¾|‘ç»œä¼ è¾“å议的选择</h3><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">ç›®å‰æˆ‘知晓的所有IM¾pÈ»Ÿä¼ 输åÏx—¶æ¶ˆæ¯æ— 外乎ä‹É用UDPã€TCPã€åŸºäºŽTCPçš„http˜q™å‡ ¿Uåè®®ä¸çš„一¿Uæˆ–å‡ ç§ã€‚比如QQ主è¦é‡‡ç”¨UDPåè®®åQŒMSN主è¦é‡‡ç”¨TCPåè®®åQŒè€Œä¸”他们也都支æŒHTTPå议的代ç†æ¨¡å¼ã€‚更多资料，请å‚åŠ è¿™½‹‡æ–‡ç«?a target="_blank" style="color: #004276;">《一些常用èÊY件的¾|‘络端å£å议分类介ç»ã€?/a>ã€?/p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">我们该如何选择呢？</p><ul style="margin: 0px 0px 0px 35px; padding: 0px; color: #333333; list-style: none outside none; word-wrap: break-word; word-break: normal; font-family: 宋体; background-color: #f8f8f8;"><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">UDPå议实时性更好，但是如何处ç†å®‰å…¨å¯é çš„ä¼ è¾“åƈ且处ç†ä¸åŒå®¢æˆïL«¯ä¹‹é—´çš„消æ¯äº¤äº’是个难题，实现èµäh¥˜q‡äºŽå¤æ‚åQ?/p></li><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">HTTPå议属于扩展支æŒåQŒæˆ‘们在产å“çš„åˆå§‹é˜¶ŒDµå¯ä»¥ä¸ç”¨æ”¯æŒï¼›</p></li><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">那就éžTCPå议莫属了，è¦è€ƒè™‘çš„åŒæ ·ä¹Ÿæœ‰å¾ˆå¤šï¼Œç‰¹åˆ«æ˜¯å¦‚果有‹¹·é‡ç”¨æˆ·çš„需求。如何ä¿è¯å•æœºæœåŠ¡å™¨é«˜åƈå‘é‡åQŒå¦‚何åšåˆ°çµ‹z»ï¼Œæ‰©å±•çš„架构ã€?/p></li></ul><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">Tips: <a target="_blank" style="color: #004276;">QQ ä¸ÞZ»€ä¹ˆé‡‡ç”?UDP åè®®åQŒè€Œä¸é‡‡ç”¨ TCP å议实现åQ?/a></p><h3>äº?åº”è¯¥é€‰æ‹©ä»€ä¹ˆæ ¼å¼çš„æ•°æ®åè®®</h3><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">äºŒè¿›åˆ¶æ ¼å¼ï¼Ÿæ–‡æœ¬æ ¼å¼åQŸè¿™ä¸ªè¯é¢˜è{到我的这½‹‡æ–‡ç«?a target="_blank" style="color: #004276;">《网¾lœä¼ 输数æ®æ ¼å¼çš„选择ã€?/a>åQŒä»Žæˆ‘们当å‰çš„需求和产å“周期上我觉得选择JSONå½¢å¼çš„æ•°æ®å议是最好的ã€?/p><h3>ä¸?架构设计</h3><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">首先我们æ¥æç‚ég¸€ä¸‹ä¸€ä¸ªIM¾pÈ»Ÿçš„主è¦éœ€æ±‚，包括账å·åQŒå…³¾p»é“¾åQŒåœ¨¾U¿çŠ¶æ€æ˜¾½Cºï¼Œæ¶ˆæ¯äº¤äº’......ã€?/p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">架构考é‡åQ?/p><ul style="margin: 0px 0px 0px 35px; padding: 0px; color: #333333; list-style: none outside none; word-wrap: break-word; word-break: normal; font-family: 宋体; background-color: #f8f8f8;"><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">ç”׃ºŽé‡‡ç”¨å¯é ä¼ è¾“åè®®TCPåQŒè€ƒè™‘到负载问题（çŸè¿žæŽ¥å®žçŽ°èÌŽå—÷€å…³¾p»é“¾ç›¸å…³ä¸šåŠ¡åQŒé•¿˜qžæŽ¥å®žçŽ°ä¸Šçº¿ã€ä¿¡æ¯æŽ¨é€ï¼‰åQ?/p></li><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">åŽå°æž¶æž„的絋zÀL€§ã€å¯æ‰©å±•æ€§ï¼Œæ”¯æŒåˆ†å¸ƒå¼éƒ¨¾|?#8212;—把网¾lœå±‚ã€ä¸šåŠ¡é€»è¾‘层ã€æ•°æ®å±‚分离åQŒç½‘¾lœå±‚和业务层支æŒè´Ÿè²å‡è¡¡½{–ç•¥ã€æ•°æ®å±‚支æŒåˆ†å¸ƒå¼å˜å‚¨ï¼›</p></li><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">客户端SDK的易用性：把网¾lœå±‚ã€æ•°æ®å±‚分离ã€ä¸šåŠ¡é€»è¾‘层分¼›»ï¼›</p></li></ul><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">åŽå°æž¶æž„½Ž€åŒ–图</p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;"><a target="_blank" style="color: #004276;"><img width="480" height="318" border="0" alt="" src="http://s9.51cto.com/wyfs02/M02/28/68/wKioL1N5aXTzJmkqAADPN-OmLtU615.png" style="border: 0px;" /></a></p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">架构½Cºæ„å›?/p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;"><a target="_blank" style="color: #004276;"><img width="480" height="340" border="0" alt="" src="http://s1.51cto.com/wyfs02/M01/28/68/wKiom1N5acHQgPTgAAIdkDkPfvs757.jpg" style="border: 0px;" /></a></p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">架构¾l†åŒ–å›?/p><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;"><a target="_blank" style="color: #004276;"><img width="480" height="340" border="0" alt="" src="http://s9.51cto.com/wyfs02/M00/28/68/wKioL1N5abSTiTpcAAO7q3GDlNM469.jpg" style="border: 0px;" /></a></p><p style="margin: 10px 0px; 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text-indent: 28px;">ã€?.4亿在¾U¿èƒŒåŽçš„故事》；</p></li><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">《BasicDB的架构演å˜ã€‹ï¼›</p></li><li style="margin: 0px; padding: 0px 0px 0px 10px; list-style: none outside none; word-wrap: break-word; word-break: normal; background: url("http://images.51cto.com/images/art1105/images/list.jpg") 0px 50% no-repeat;"><p style="margin: 10px 0px; padding: 0px; background-color: transparent; text-indent: 28px;">《微信之é“ï¼è‡³ç®€ã€‹ï¼›</p></li></ul><p style="margin: 10px 0px; padding: 0px; color: #333333; background-color: #f8f8f8; text-indent: 28px; font-family: 宋体;">本文å‡ø™‡ª51åšå®¢ “<a style="color: #004276;">永远的朋å?/a>” åQŒè{载请务必ä¿ç•™æ¤å‡ºå¤?a style="color: #004276;">http://yaocoder.blog.51cto.com/2668309/1412029</a></p><img src ="http://www.aygfsteel.com/xiaomage234/aggbug/432528.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/xiaomage234/" target="_blank">ž®é©¬æ?/a> 2017-05-15 14:22 <a href="http://www.aygfsteel.com/xiaomage234/archive/2017/05/15/432528.html#Feedback" target="_blank" style="text-decoration:none;">å‘表评论</a></div>]]></description></item><item><title>一个完整的微æœåŠ¡ç³»¾lŸï¼Œåº”该包å«å“ªäº›åŠŸèƒ½åQ?/title><link>http://www.aygfsteel.com/xiaomage234/archive/2016/08/13/431556.html</link><dc:creator>ž®é©¬æ?/dc:creator><author>ž®é©¬æ?/author><pubDate>Sat, 13 Aug 2016 02:53:00 GMT</pubDate><guid>http://www.aygfsteel.com/xiaomage234/archive/2016/08/13/431556.html</guid><wfw:comment>http://www.aygfsteel.com/xiaomage234/comments/431556.html</wfw:comment><comments>http://www.aygfsteel.com/xiaomage234/archive/2016/08/13/431556.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/xiaomage234/comments/commentRss/431556.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/xiaomage234/services/trackbacks/431556.html</trackback:ping><description><![CDATA[from:http://www.infoq.com/cn/articles/what-complete-micro-service-system-should-include?utm_source=infoq&utm_medium=popular_widget&utm_campaign=popular_content_list&utm_content=homepage<br /><br /><br /><p style="margin: 0px 0px 15px; 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color: #286ab2; outline: none !important; margin: 0px; border: 0px; padding: 0px;">editors@cn.infoq.com</a>。也‹Æ¢è¿Žå¤§å®¶é€šè¿‡æ–°æµªå¾®åšåQ?a style="text-decoration: none; color: #286ab2; outline: none !important; margin: 0px; border: 0px; padding: 0px;">@InfoQ</a>åQ?a style="text-decoration: none; color: #286ab2; outline: none !important; margin: 0px; border: 0px; padding: 0px;">@ä¸æ™“昀</a>åQ‰ï¼Œå¾®ä¿¡åQˆå¾®ä¿¡å·åQ?a style="text-decoration: none; color: #286ab2; outline: none !important; margin: 0px; border: 0px; padding: 0px;">InfoQChina</a>åQ‰å…³æ³¨æˆ‘们ã€?/p><img src ="http://www.aygfsteel.com/xiaomage234/aggbug/431556.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/xiaomage234/" target="_blank">ž®é©¬æ?/a> 2016-08-13 10:53 <a href="http://www.aygfsteel.com/xiaomage234/archive/2016/08/13/431556.html#Feedback" target="_blank" style="text-decoration:none;">å‘表评论</a></div>]]></description></item><item><title>Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l?/title><link>http://www.aygfsteel.com/xiaomage234/archive/2015/03/09/423321.html</link><dc:creator>ž®é©¬æ?/dc:creator><author>ž®é©¬æ?/author><pubDate>Mon, 09 Mar 2015 08:06:00 GMT</pubDate><guid>http://www.aygfsteel.com/xiaomage234/archive/2015/03/09/423321.html</guid><wfw:comment>http://www.aygfsteel.com/xiaomage234/comments/423321.html</wfw:comment><comments>http://www.aygfsteel.com/xiaomage234/archive/2015/03/09/423321.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/xiaomage234/comments/commentRss/423321.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/xiaomage234/services/trackbacks/423321.html</trackback:ping><description><![CDATA[<div class="wmqeeuq" id="content" mod-cs-content="" text-content="" clearfix"="" style="zoom: 1; width: 760px; overflow: visible; line-height: 1.5; margin: 7px 0px 10px; padding: 20px; color: #454545; font-family: Tahoma, Helvetica, Arial, STHeiti; background-color: #ffffff;"><p style="margin: 0px; padding: 0px;">from: <span style="line-height: 1.5;">http://wapapp.baidu.com/tianhuimin/item/6e144c362eced2ff96f88d42</span></p><p style="margin: 0px; padding: 0px;">1 概述1.1 ç ”å‘背景</p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">支撑互蔾|‘应用的å„ç§æœåŠ¡é€šå¸¸éƒ½æ˜¯ç”¨å¤æ‚大规模分布å¼é›†¾Ÿ¤æ¥å®žçŽ°çš„。而这些互è”网应用åˆæž„建在ä¸åŒçš„èÊY件模å—集上，˜q™äº›è½¯äšg模å—åQŒæœ‰å¯èƒ½æ˜¯ç”±ä¸åŒçš„团队开 å‘ã€å¯èƒ½ä‹É用ä¸åŒçš„¾~–程è¯è¨€æ¥å®žçŽ°ã€æœ‰å¯èƒ½å¸ƒåœ¨äº†å‡ åƒå°æœåŠ¡å™¨ï¼Œæ¨ªè·¨å¤šä¸ªä¸åŒçš„æ•°æ®ä¸å¿ƒã€‚å› æ¤ï¼Œž®±éœ€è¦ä¸€äº›å¯ä»¥å¸®åŠ©ç†è§£ç³»¾lŸè¡Œä¸ºã€ç”¨äºŽåˆ†æžæ€§èƒ½é—®é¢˜çš„å·¥ å…—÷€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">hydra分布å¼è·Ÿítªç³»¾lŸå°±ä¸ÞZº†è§£å†³ä»¥ä¸Š˜q™äº›é—®é¢˜è€Œè®¾è®¡çš„ã€?/p>1.2 ç†è®ºä¾æ®<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">Google的论文《Dapper, a Large-Scale Distributed Systems Tracing Infrastructure》是我们设计开å‘的指导æ€æƒ³(åŽŸæ–‡å’Œè¯‘æ–‡åœ°å€ https://github.com/bigbully/Dapper-translation)。Google针对自己的分布å¼è·Ÿè¸ª¾pÈ»ŸDapper 在生产环境下˜q行两年多时间积累的¾l验åQŒåœ¨è®ºæ–‡ä¸é‡ç‚ÒŽåˆîCº†åˆ†å¸ƒå¼è·Ÿítªç³»¾lŸå¯¹ä¸šåŠ¡¾pÈ»Ÿçš„零侵入˜q™ä¸ªå…ˆå¤©ä¼˜åŠ¿åQŒåƈæ€È»“了大é‡çš„应用场景åQŒè¿˜æåŠå®ƒçš„ä¸èƒöä¹?nbsp;处。我们通过对这½‹‡è®ºæ–‡çš„æ·±å…¥ç ”ç©¶åQŒåƈå‚考了TwitteråŒæ ·ä¾æ®˜q™ç¯‡è®ºæ–‡çš„scala实现ZipkinåQŒç»“åˆæˆ‘们自íw«çš„现有架构åQŒæˆ‘们认为分布å¼è·Ÿè¸ª ¾pÈ»Ÿåœ¨æˆ‘们内部是éžå¸¸é€‚åˆçš„，而且也是急需的ã€?/p>1.3 功能概述<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">hydraç›®å‰çš„功能åƈä¸å¤æ‚，他å¯ä»¥æŽ¥å…¥ä¸€äº›åŸº¼‹€¾l„äšgåQŒç„¶åŽå®žçŽ°åœ¨åŸºç¡€¾l„äšg上收集在¾l„å¾ä¸Šäñ”生的行äؓ的时间消耗，òq¶ä¸”æ供跟踪查询™åµé¢åQŒå¯¹è·Ÿè¸ªåˆ°çš„数殘q›è¡ŒæŸ¥è¯¢å’Œå±•½Cºã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">我们会在之åŽçš„功能介¾lä¸å¯¹hydra现有功能˜q›è¡Œè¯´æ˜Žã€?/p>2 领域模型<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">分布å¼è·Ÿítªçš„领域模型其实已ç»å¾ˆæˆç†Ÿï¼Œæ—©åœ¨1997òq´IBMž®±æŠŠARM2.0(Application Response Measurement)作äØ“ä¸€ä¸ªå…¬å¼€çš„æ ‡å‡†æ供给了Open GroupåQŒæ— 奈当时SOA的架构还未æˆç†Ÿï¼Œå¯¹ä¸šåŠ¡çš„跟踪˜q˜éœ€è¦ç›´æŽ¥åµŒå…¥åˆ°ä¸šåŠ¡ä»£ç ä¸ï¼Œè‡´ä‹É跟踪¾pÈ»Ÿæ— 法™åºåˆ©æŽ¨å¹¿ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">如今互蔾|‘领域大多数åŽå°æœåŠ¡éƒ½å·²¾l完æˆäº†SOA化，所以对业务的跟ítªå¯ä»¥ç›´æŽ¥ç®€åŒ–äØ“å¯ÒŽœåŠ¡è°ƒç”¨æ¡†æž¶çš„跟踪åQŒæ‰€ä»¥è¶Šæ¥è¶Šå¤šçš„跟踪¾pÈ»Ÿä¹Ÿæ¶ŒçŽ°å‡ºæ¥ã€?nbsp;在hydra¾pÈ»Ÿä¸ï¼Œæˆ‘们使用的领域模型å‚考了Googleçš„Dapperå’ŒTwitterçš„Zipkin(http://twitter.github.io/zipkin/)ã€?/p>2.1 hydraä¸çš„跟踪数æ®æ¨¡åž‹<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">å‚考Dapperå’ŒZipkin的设计，hydra也æ炼出了自å·Þqš„领域模型åQŒå¦‚图所½C?</p><img width="640" height="398" src="http://g.hiphotos.baidu.com/album/pic/item/314e251f95cad1c88959439b7e3e6709c83d51af.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Trace:一‹Æ¡æœåŠ¡è°ƒç”¨è¿½ítªé“¾è·¯ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Span:˜q½è¸ªæœåŠ¡è°ƒåŸºæœ¬ç»“构，多spanå½¢æˆæ ‘åÅž¾l“æž„¾l„åˆæˆä¸€‹Æ¡Trace˜q½è¸ªè®°å½•ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Annotation:在spanä¸çš„æ ‡æ³¨ç‚¹ï¼Œè®°å½•æ•´ä¸ªspanæ—‰™—´ŒDµå†…å‘生的事件ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">BinaryAnnotation:属于Annotation一¿U类型和普通Annotation区别åQŒè¿™é”®å€¼å¯¹å½¢å¼æ ‡æ³¨åœ¨spanä¸å‘生的事äšgåQŒå’Œä¸€äº›å…¶ä»–相关的信æ¯ã€?/p></li></ul><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">Annotation在整个跟ítªæ•°æ®æ¨¡åž‹ä¸æœ€ç‰|´»çš„，ç‰|´»˜q用annotationåŸºæœ¬èƒ½è¡¨è¾¾ä½ æ‰€æƒ›_ˆ°çš„è·Ÿítªåœºæ™¯ã€‚在hydraä¸?å‚考了zipkin)定义4¿Uä¸åŒvalueçš„annotation用æ¥è¡¨è¾¾è®°å½•span 4个最基本的事件。通过˜q?个annotation能计½Ž—出链èµ\ä¸ä¸šåŠ¡æ¶ˆè€—å’Œ¾|‘络消耗时间ã€?/p>2.2 dubboæœåŠ¡è°ƒç”¨æ¡†æž¶çš„模åž?p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">å…¬å¸å†…部åQŒå°¤å…¶æ˜¯æˆ‘们部门有很多业务系¾lŸä‹É用dubbo作äØ“æœåŠ¡è°ƒç”¨æ¡†ï¼Œæ‰€ä»¥æˆ‘们的分布å¼è·Ÿítªç³»¾lŸç¬¬ä¸€ä¸ªæŽ¥å…¥ç»„件就是dubboã€?nbsp;å¦ä¸€ä¸ªåŽŸå› ä¹Ÿæ˜¯å› ä¸ºæˆ‘ä»¬å›¢é˜Ÿå¯¹dubbo有ç€éžå¸¸æ·±å…¥çš„ç†è§£ï¼ŒåŠ 之dubbo本èín的架构本íw«å分适åˆæ‰©å±•åQŒä½œä¸ºæœåŠ¡è°ƒç”¨æ¡†æž¶è€Œè¨€åQŒè·Ÿítªçš„效果会éžå¸¸æ˜Žæ˜¾ï¼Œ 比如Twitterçš„Zipkin也是æ¤å…¥åˆ°å†…部的FinagleæœåŠ¡è°ƒç”¨æ¡†æž¶ä¸Šæ¥˜q›è¡Œè·Ÿè¸ªçš„ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">ç”׃ºŽçŽ°é˜¶ŒDµhydra主è¦æŽ¥å…¥äº†dubboæœåŠ¡è°ƒç”¨æ¡†æž¶,所以在˜q™å¿…™åÖMº†è§£dubboçš„å‡ ä¸ªæ¨¡åž‹ï¼Œå¦‚ä¸‹å›¾æ‰€½C?</p><img width="640" height="348" src="http://b.hiphotos.baidu.com/album/pic/item/b21bb051f8198618b79550384bed2e738ad4e6b8.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Application:一¾cÖM¸šåŠ¡ç±»åž‹çš„æœåŠ¡åQŒä¸‹é¢å¯èƒ½åŒ…å«å¤šä¸ªæŽ¥å£æœåŠ¡ï¼Œå¯èƒ½å‡ºçŽ°å¤šç§¾cÕdž‹ä¸šåŠ¡è·Ÿè¸ªé“¾èµ\ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">InterfaceService:接å£æœåŠ¡åQŒä¸€ä¸ªæœåŠ¡æŽ¥å£æ供多¿U业务处ç†æ–¹æ³•ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Method:接å£æœåŠ¡ä¸å…·ä½“处ç†ä¸šåŠ¡çš„æ–ÒŽ³•ã€?/p></li></ul>2.3 Hydraä¸è·Ÿítªæ¨¡åž‹å’Œdubbo模型之间关系<img width="800" height="518" src="http://c.hiphotos.baidu.com/album/pic/item/38dbb6fd5266d0165be12194962bd40734fa3595.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">如图所½Cºçš„应用场景对AæœåŠ¡çš„调用。AæœåŠ¡åœ¨è¢«è°ƒç”¨çš„过½E‹ä¸ä¼šç‘ô¾l调用æœåŠ¡Bå’ŒæœåŠ¡C,而æœåŠ¡C被调用之åŽåˆä¼šç‘ô¾l调用æœåŠ¡Då’Œæœ åŠ¡E。在我们的领域模型ä¸åQŒæœåŠ¡A被调用到调用完æˆçš„过½E‹ï¼Œž®±æ˜¯ä¸€‹Æ¡trace。而æ¯ä¸€ä¸ªæœåŠ¡è¢«è°ƒç”¨òq¶è¿”回的˜q‡ç¨‹åQˆä¸€åŽÖM¸€å›žçš„½Žå¤´åQ‰äؓ一个span。å¯ä»?nbsp;看到˜q™ä¸ª½CÞZ¾‹ä¸åŒ…å?个spanåQŒclient-AåQŒA-BåQŒA-CåQŒC-DåQŒC-E。span本èínä»¥æ ‘å½¢ç»“æž„å±•å¼€åQŒA-C是C-Då’ŒC-E的父 spanåQŒè€Œclient-Aæ˜¯æ•´ä¸ªæ ‘å½¢ç»“æž„çš„root span。之åŽè¦æ到的一个概念就是annotationåQŒannotation代表在æœåŠ¡è°ƒç”¨è¿‡½E‹ä¸å‘生的一些我们感兴趣的事情，如图所½CºC-Eä¸Šæ ‡å‡?nbsp;æ¥çš„那四个点åQŒå°±æ˜¯å››ä¸ªannotationåQŒæ¥è®°å½•äº‹äšgæ—‰™—´æˆ»I¼Œåˆ†åˆ«æ˜¯CæœåŠ¡çš„csåQˆclient sendåQ‰ï¼ŒEæœåŠ¡çš„ssåQˆserver receiveåQ?EæœåŠ¡çš„ssåQˆserver sendåQ? CæœåŠ¡çš„cråQˆclient receiveåQ‰ã€‚如果有一些自定义的annotation我们会把它作为BinaryAnnotationåQŒå…¶å®žå°±æ˜¯ä¸€ä¸ªk-v对，记录ä»ÖM½•è·Ÿè¸ª¾pÈ»Ÿæƒ?nbsp;记录的信æ¯ï¼Œæ¯”如æœåŠ¡è°ƒç”¨ä¸çš„异常信æ¯åQŒé‡è¦çš„业务信毽{‰ç‰ã€?/p>3 功能介ç»<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">当å‰hydra1.0版的功能主è¦åˆ†äؓ两个部分åQŒè·ŸítªæŸ¥è¯¢å’Œè·Ÿè¸ªå±•ç¤ºã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">如图所½CÞZؓ查询™åµé¢åQ?/p><img width="640" height="311" src="http://h.hiphotos.baidu.com/album/pic/item/d53f8794a4c27d1e95c484781ad5ad6edcc438af.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">在hydra针对业务æ出两个相关的概念：应用和æœåŠ¡ã€‚ä¸åŒçš„业务的所属ä¸åŒçš„应用(相当于dubboä¸çš„Application)åQŒæœåŠ¡ï¼ˆç›¸å½“于dubboä¸çš„interfaceåQ‰æŒ‚在应用之下ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">在hydra的查询界é¢ä¸é¦–å…ˆè¦é€‰æ‹©æƒŒ™¦å…Ïx³¨çš„应用ååQŒç„¶åŽé€šè¿‡è‡ªåŠ¨å®Œæˆçš„æ–¹å¼è¾“入应用下的æœåŠ¡ã€‚选择æœåŠ¡çš„开始时间和需è¦æŸ¥çœ‹çš„跟踪‹Æ¡æ•°ã€‚å¦å¤–hydra需è¦ç¡®å®šè¿”回数æ®çš„总é‡åQŒé˜²æ¢æŸ¥è¯¢å‡ºå¤§æ•°æ®é‡å¯ÆD‡´™åµé¢å¤±åŽ»å“应ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">å¦å¤–我们æ供寚w¢å¤–çš„½{›é€‰æ¡ä»Óž¼šè°ƒç”¨å“应旉™—´ã€æ˜¯å¦å‘生异常。调用å“应时间指的是˜q™ä¸€‹Æ¡æœåŠ¡è°ƒç”¨ä»Žè°ƒç”¨å¼€å§‹åˆ°è°ƒç”¨¾l“æŸçš„æ—¶é—ß_¼Œæ˜¯å¦å‘生异常则包括一‹Æ¡æœåŠ¡è°ƒç”¨ä¸æ‰€æœ‰åŽ†¾lçš„æœåŠ¡æŠ›å‡ºçš„异帔Rƒ½ä¼šæ•èŽ·åˆ°ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">对于查询之åŽçš„æ•°æ®ï¼Œhydraæ供在å‰å°è¿›è¡ŒæŽ’åºçš„功能ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">对于æ¯ä¸€‹Æ¡è·Ÿítªï¼Œæˆ‘们å¯ä»¥˜q›ä¸€æ¥å±•½CÞZ»–çš„æœåŠ¡è°ƒç”¨å±‚¾U§ä¸Žå“应旉™—´çš„æ—¶åºå›¾ã€‚如下图所½Cºï¼š</p><img width="800" height="347" src="http://g.hiphotos.baidu.com/album/pic/item/738b4710b912c8fcfd114971fd039245d78821af.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">我们å‚考Dapperä¸è®º˜q°çš„场景åQŒåœ¨æ—¶åºå›¾ä¸ç”¨ç»¿è‰²ä»£è¡¨æœåŠ¡è°ƒç”¨æ—¶é—ß_¼Œ‹¹…è“色代表网¾lœè€—æ—¶åQŒå¦å¤–如果æœåŠ¡è°ƒç”¨æŠ›å‡ºå¼‚常被 hydraæ•æ‰åˆ°çš„è¯ï¼Œä¼šç”¨¾U¢è‰²è¡¨ç¤ºã€‚é¼ æ ‡ç§»åŠ¨åˆ°æ—¶åºå›¾ä¸çš„æ¯ä¸€ä¸ªå¯¹è±¡ä¸ŠåQŒä¼šTip展现详细信æ¯åQŒåŒ…括æœåŠ¡åã€æ–¹æ³•åã€è°ƒç”¨æ—¶é•Ñ€Endpointã€å¼‚å¸?nbsp;信毽{‰ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">å·¦ä¾§çš„æ ‘å½¢ç»“æž„å›¾å¯ä»¥æ”¶è“v和展开åQŒåŒæ—¶å³ä¾§çš„æ—¶åºå›¾äñ”生è”动，利于调整å…Ïx³¨ç‚¹åœ¨ä¸åŒçš„æœåŠ¡ä¸Šã€?/p>4 整体架构4.1 完整ç‰?img width="640" height="445" src="http://g.hiphotos.baidu.com/album/pic/item/ac6eddc451da81cb77043c715366d016082431af.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">对于分布å¼è·Ÿítªç³»¾lŸè€Œè¨€åQŒå¿…™åÕd¯¹æŽ¥å…¥çš„基¼‹€¾l„äšg˜q›è¡Œæ”šw€ ，我们对dubboçš„æ”¹é€ å¾ˆ½Ž€å•ï¼Œåªæ˜¯åœ¨è¿‡æ»¤å™¨é“¾ä¸Šå¢žåŠ 一个过滤器åQŒæˆ‘们将其å°è£…æˆä¸€ä¸ªhydra-dubboçš„jar包，由dubbo直接ä¾èµ–ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">所有跟ítªæ‰€éœ€çš„通用性的API我们ž®è£…在hydra-clientä¸ï¼Œé于接入å„秾l„äšgã€?nbsp;hydra-manager用æ¥å®Œæˆæ¯ä¸ªæœåŠ¡çš„注册ã€é‡‡æ ïLŽ‡çš„è°ƒæˆã€å‘é€seed生æˆå…¨å±€å”¯ä¸€çš„traceId½{‰é€šç”¨æ€§çš„功能。所有hydra-manager数殾lŸä¸€ç”¨mysql˜q›è¡Œå˜å‚¨ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">我们使用hydra-collectorå’Œhydra-collector-service˜q›è¡Œè·Ÿè¸ªæ•°æ®çš„异æ¥å˜å‚¨ï¼Œä¸é—´ä½¿ç”¨metaQ˜q›è¡Œ¾~“冲ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">hydra-managerå’Œhydra-collector使用dobboæä¾›æœåŠ¡ã€?/p>4.2 ¾_„¡®€ç‰?p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">考虑到数æ®é‡ä¸å¤§çš„情况，以åŠéƒ¨çÖvçš„å¤æ‚度。我们æ供了两ç§æ›´ç®€ä¾¿çš„架构</p><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">如果考虑到数æ®é‡æ²¡æœ‰é‚£ä¹ˆå¤§ï¼Œå¯ä»¥ä¸ä‹É用hbaseåQŒç”¨mysql代替åQŒå³¾_„¡®€ç‰?ã€‚å› ä¸ºæ¯•ç«Ÿhadoop集群和hbase集群的部¾|²å’Œ¾l´æŠ¤å·¥ä½œé‡å¾ˆå¤§ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">如果òq¶å‘é‡ä¹Ÿä¸æ˜¯å¾ˆå¤§çš„è¯åQŒå¯ä»¥ä¸ä½¿ç”¨æ¶ˆæ¯ä¸é—´ä»Óž¼Œä¹Ÿå°±æ˜¯ç²¾½Ž€ç‰?åQŒå¦‚图所½Cºã€‚在hydra-collector端直接进行数æ®è½åœŽÍ¼Œå½“然ä»ç„¶æ˜¯å¼‚æ¥çš„ã€?/p></li></ul><img width="596" height="464" src="http://c.hiphotos.baidu.com/album/pic/item/c2cec3fdfc03924594575eb38694a4c27c1e25af.jpg" alt="Hydra - 京东开æºçš„åŸÞZºŽDubbo的调用分布跟ítªç³»¾l? style="border: 0px; margin-bottom: 8px; clear: both; max-width: 758px; vertical-align: top;" /><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">在ä‹É用mysql˜q›è¡Œå˜å‚¨çš„时候我们åÆˆæœªè¿›è¡Œåˆ†åº“åˆ†è¡¨ï¼Œå› äؓ考虑到å˜å‚¨çš„是监控数æ®ï¼Œæ—¶æ•ˆæ€§è¾ƒé«˜ï¼Œè€Œé•¿æœŸçš„监控数æ®çš„ä¿ç•™æ„义åƈä¸å¤§ã€‚所以我们在主表上有明确的时间戳å—段åQŒä‹É用者å¯ä»¥è‡ªè¡Œå†³å®šä½•æ—¶å¯¹ä¿å˜çš„历å²æ•°æ®è¿›è¡Œè¿¿U…R€?/p>5 Quick Start5.1 部çÖv½Ž€ä»?p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">Hydra分布å¼è·Ÿítªç³»¾lŸå¯ä»¥è·ŸítªçŽ¯å¢ƒçš„æ•°æ®é‡å¤§ž®é€‰æ‹©ä¸Šæ–‡æ‰€˜q°çš„三ç§éƒ¨çÖvæ–¹å¼</p><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">高åƈå‘，大数æ®é‡åQšhydra-client | Queue | hbase</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">高åƈå‘，ž®æ•°æ®é‡åQšhydra-client | Queue | mysql</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">低åƈå‘，ž®æ•°æ®é‡åQšhydra-client | mysql</p></li></ul><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">å› äؓ是quick startåQŒè¿™é‡Œåªä»‹ç»ä½Žåƈå‘å’Œž®æ•°æ®é‡çš„情å†üc€‚丘q‡è¿™é‡Œä¼šè¯¦ç»†ä»‹ç»å¦‚何通过é…置文äšgçš„ä¿®æ”ÒŽ¥åˆ‡æ¢˜q™ä¸‰¿U部¾|²æ–¹å¼ã€?/p>5.2 ¼‹¬äšgè¦æ±‚<ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">1或多åîC¸šåŠ¡ç³»¾lŸé›†¾Ÿ¤æœº</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">1套zookeeperå•ç‚¹æˆ–集¾Ÿ¤æœº</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">1å°æœºå™¨éƒ¨¾|²Hydra-manager</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">1或多å°æœºå™¨éƒ¨¾|²Hydra-Collector</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">1å°æœºå™¨éƒ¨¾|²Hydra-web</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">1å°æ•°æ®åº“æœåŠ¡å™?/p></li></ul>5.3 软äšgè¦æ±‚<ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Dubbo:Hydra是基于alibabaçš„dubbo框架基准上åšçš„æœåŠ¡è·Ÿítªç³»¾lŸï¼Œç†è®ºä¸ŠåŽŸæœ‰çš„Dubbo框架æœåŠ¡¾Ÿ¤ä¸æ‰€æœ‰åº”用ä¸éœ€è¦é¢å¤–çš„é…ç½®åQŒçš†å¯ä»¥òqÏx»‘的接入Hydra¾pÈ»Ÿã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Zookeeper:å„个æœåŠ¡ç‚¹ä¾èµ–于zookeeperæ¥è¯»å–Hydra-managerå’ŒHydra-collector获å–æ•°æ®äº¤äº’路由点，æ¥å®Œæˆè·Ÿítªæ•°æ®çš„推é€å’Œè·Ÿè¸ªçš„控制ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Mysql:跟踪数æ®çš„æŒä¹…化å˜å‚¨ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">Tomcat:å‰ç«¯web应用容器</p></li></ul>5.4 æºç 获å–<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">å¯ä»¥æš‚时使用masteråQŒåŽ¾l版本会归åƈ到dubbo½Ž¡ç†ç«?/p>5.5 ™å¹ç›®æž„å¾æ‰“包<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">maven™å¹ç›®ä¸ç”¨å¤šè¯´ã€‚mvn clean install。丘q‡ä¸å¾—ä¸è¯´çš„是，hydra™å¹ç›®ä¸åŒ…å«ä¸€äº›æ¶‰åŠæ•°æ®åº“è¯Õd†™çš„å•å…ƒæµ‹è¯?mysqlåQŒhbaseåQ‰ï¼Œé…置文äšg分别åœ?</p><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">modules/hydra-manager-db/src/test/resources/mysql.properties</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">modules/hydra-store/hydra-mysql/src/test/resources/mysql.properties</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">modules/hydra-store/hydra-hbase/src/test/resources/hbase-site.xml</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">modules/hydra-store/hydra-hbase/src/test/resources/hydra-hbase-test.xml</p></li></ul><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">mysql需è¦åˆ›å»ºæµ‹è¯•ç”¨æ•°æ®åº“å’Œ‹¹‹è¯•ç”¨è¡¨åQŒhbase需è¦åˆ›å»ºæµ‹è¯•ç”¨è¡?/p><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">docs/table-hbase/initTable<br />(hbaseå»ø™¡¨æ—¶å¯ä»¥æ ¹æ®hbase集群的具体情况调整域分区åQŒæ¶‰åŠåˆ°table-mysqlä¸å¯¹TB_PARA_SERVICE_ID_GENåˆå§‹åŒ–æ•°æ®çš„设计)</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">docs/table-mysql</p></li></ul><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">当然对于ä¸éœ€è¦ä‹É用hbaseçš„åŒå¦ä¹Ÿå¯ä»¥è‡ªè¡Œ¿U»é™¤modules/hydar-store/hydra-hbaseã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">当然用mavenæž„å¾è·Œ™¿‡‹¹‹è¯•ä¹Ÿæ˜¯å¯ä»¥çš„。ä‹É用mvn clean install -Dmaven.test.skip=true</p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">需è¦æ‰“包的å项目会通过maven:assembllyæ’äšg打æˆtar.gz包在å„自的target目录下ã€?/p>5.6 安装部çÖv5.6.1 Hydra-client<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">hydra-clientä¸åŒ…å«hydra与dubbo的集æˆï¼Œä»¥åŠhydra跟踪攉™›†çš„相兛_ŠŸèƒ½ã€‚如果需è¦è¿›è¡ŒdubboæœåŠ¡çš„è·Ÿítªï¼Œåªéœ€è¦æŠŠ˜q™ä¸ªjar包放在dubboæœåŠ¡çš„classpath下，ž®×ƒ¼š<span style="color: aqua;">自动开å¯è·ŸítªåŠŸèƒ½ï¼</span></p>5.6.2 Hydra-manager<ol style="margin: 5px 2px 5px 50px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖvåQšscp -r target/*.tar.gz username@ip:dirname</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">é…ç½®åQšcd basedir/conf åQˆéœ€è¦ä¿®æ”šw…¾|®ï¼‰</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">å¯åŠ¨åQšcd basedir/bin<br />sh manager.sh start</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">åœæ¢åQšcd basedir/bin<br />sh manager.sh stop</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">输入åQšcd basedir/log<br />tail -f manager.log</p></li></ol>5.6.3 Hydra-collector<ol style="margin: 5px 2px 5px 50px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖvåQšscp -r target/*.tar.gz username@ip:dirname</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">é…ç½®åQšcd basedir/conf åQˆéœ€è¦ä¿®æ”šw…¾|®ï¼‰</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">å¯åŠ¨åQšcd basedir/bin<br />sh collector-mysql.sh start <br />(˜q™é‡Œæ³¨æ„一下，如果在hydra-collectorä¸éœ€è¦å‘é€åˆ°Queueä¸ï¼Œåˆ™éœ€è¦å¯åŠ¨collector.sh,jaråŒ…ä¼šåŠ è²ä¸åŒçš„é…¾|®æ–‡ä»¶ã€?</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">åœæ¢åQšcd basedir/bin<br />sh collector-mysql.sh stop</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">输入åQšcd basedir/log<br />tail -f *.log</p></li></ol>5.6.4 Hydra-web<ol style="margin: 5px 2px 5px 50px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">需è¦åœ¨web.xmlä¸ä¿®æ”¹å¼•å…¥çš„é…置文äšg为hydra-mysql.xmlåQŒæ³¨æŽ‰hydra-hbase.xml</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖvåQšscp -r target/*.war username@ip:$TOMCAT_WEBAPPS</p></li></ol>6 模拟场景6.1 场景æè¿°<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">我们模拟了两个测试场景，å‡æ˜¯åŸÞZºŽdubboæœåŠ¡è°ƒç”¨</p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">场景exp1:</p><pre style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-size: 12px; font-family: tahoma, helvetica, arial;">A --> B --> C </pre><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">åÏxœåŠ¡A调用æœåŠ¡B,æœåŠ¡B调用æœåŠ¡C。测试用例在modules/hydra-example/hydra-exmple-exp1/。熟悉dubboçš„åŒå¦ä¸€å®šä¸ä¼šé™Œç”Ÿã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">场景exp2:</p><pre style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-size: 12px; font-family: tahoma, helvetica, arial;">A --> B --> C1 --> E --> C2 --> D1 --> C1 --> E --> D2 </pre><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">场景2很å¤æ‚，基本æ¶ëŠ›–了对åŒæ¥è°ƒç”¨è·Ÿè¸ªçš„大多数å¯èƒ½é‡åˆ°çš„场景。测试用例在modules/hydra-example/hydra-exmple-exp2/ã€?/p>6.2 模拟场景dubboæœåŠ¡çš„部¾|?p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">Hydra默认使用了hydra-exmpleä¸çš„两个应用场景æ¥åšåQŒä½ å¯ä»¥åœ¨hydra-test/hydra-test-integration打包ä¸èŽ·å¾—应用场景ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">获得tar.gz包或者zip包åŽåQŒå°†æœåŠ¡åˆ†å¸ƒå¼éƒ¨¾|²åˆ°ä¸åŒçš„机器上åQŒä»¥æ¨¡æ‹Ÿåº”用场景,一下介¾l场景一的部¾|²æ–¹æ³•ï¼Œåœºæ™¯äºŒçš„部çÖvæ–ÒŽ³•¾cÖM¼¼ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">hydra-test-intergration 分äØ“windows版和linuxç‰?默认)åQŒè§å¦‚下打包æ–ÒŽ³•ã€?/p><ul style="margin: 0px 2px 0px 45px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">打包åQšlinux: mvn package -Pruntime-env-linux<br />window: mvn package -Pruntime-env-windows</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖv: scp -r target/*.tar.gz username@ip:dirname</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">é…ç½®: cd basedir/conf<br />修改 *exp1.properties</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">å¯åŠ¨åQ?nbsp;cd basedir/bin<br />cd exp1<br />sh startA.sh<br />cd ..<br />sh startTrigger-exp1.sh start</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">åœæ¢: cd basedir/bin<br />sh startTrigger-exp1.sh stop<br />All.sh stop</p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">输出: cd basedir/log<br />tail -f *.log</p></li></ul>6.3 部çÖv举例<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">ä»¥ä¸‹æ¼”ç¤ºå®‰è£…æ ·ä¾‹åQ?/p><ol style="margin: 5px 2px 5px 50px; padding: 0px; list-style: none; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;"><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖvzookeeperå•ç‚¹æˆ–集¾Ÿ¤çŽ¯å¢ƒï¼Œä»¥ä¿è¯èŽ·å¾—最佳SOAåQŒzookeeper的部¾|²è¯·å‚照官方文档ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖv实验场景exp1åQŒåªéœ€è¦éƒ¨¾|²hydra-test-integration模å—打包的tar.gz包，拯‚´ä¸‰ä†¾åˆ†å¸ƒå¼éƒ¨¾|ŒÓ€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖv一个触å‘器TriggeråQŒä»¥‹È€‹zÀLœåŠ¡çš„调用ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖv一个ManageråQŒä»¥½Ž¡ç†å„个跟踪点的跟踪上下文ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖv一个或者多个Collector消费机集¾Ÿ¤ï¼Œä»¥æœé›†æ¥è‡ªHydra-client推é€è¿‡æ¥çš„跟踪数æ®ã€?/p></li><li style="margin: 0px; padding: 0px;"><p style="margin: 0px; padding: 0px;">部çÖv一个web应用åQŒå·²æä¾›¾l™å‰ç«¯å±•çŽ°åº”用系¾lŸæœåŠ¡ä¸Šä¸‹æ–‡ã€?/p></li></ol><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">exp1场景说明åQ?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">有三个æœåŠ¡åº”用Aã€Bã€C和一个触å‘RPC调用的应用TriggeråQŒæœåŠ¡è°ƒç”¨å…³¾pÖMØ“A-B-CåQ?nbsp;æ¯éš”500s触å‘一个调用，æŒç®‹æ—‰™—´ä¸?天ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">部çÖv地å€ä¸¾ä¾‹åQ?/p>角色ipportZK192.168.200.110-1122181~A192.168.200.11020990B192.168.200.11120991C192.168.200.11220992Trigger192.168.200.113-Manager192.168.228.8120890Collector192.168.228.81-8220889Web192.168.228.818080MySql-DB192.168.228.8133067 ‹¹‹è¯•ç›¸å…³7.1 ‹¹‹è¯•è¯´æ˜Ž<p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">本测试针对Hydra-Client模嗘q›è¡ŒåŠŸèƒ½‹¹‹è¯•å’ŒåŽ‹åŠ›æµ‹è¯•ï¼Œä»¥ä¾¿åœ¨Hydraå¼€å‘çš„˜q‡ç¨‹ä¸åŠæ—¶å‘现é‡è¦bug和帮助优化Hydra¾pÈ»Ÿæ€§èƒ½ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">本测试目å‰åªé’ˆå¯¹Hydra-client的测试，é‡ç‚¹å…Ïx³¨ä¸šåŠ¡¾pÈ»ŸæŽ¥å…¥Hydraå’Œä¸æŽ¥å…¥Hydraå‰åŽæ€§èƒ½å½±å“åQŒä»¥ä¿è¯Hydra¾pÈ»ŸæŽ¥å…¥ç«¯çš„低äçR入性和½E›_®šæ€§ã€?/p><p style="margin: 10px 0px; padding: 0px; font-family: arial, sans-serif, verdana, helvetica; color: #404040; line-height: 25px; background-color: #fafafa;">针对Hydra-Client的测试，在部¾|²ä¸ŠåQŒåªç”¨éƒ¨¾|²åº”用场景（带Hydra_clientåQ‰å’ŒBenchmark触å‘点，然åŽåœ¨åº”用Benchmark和应用场景上埋点分æžHydra性能ã€?br /></p><p style="margin: 0px; padding: 0px;"><br /></p><p style="margin: 0px; padding: 0px;">资料æ¥æºåQ?a target="_blank" style="color: #4bc1c1;">http://www.open-open.com/lib/view/open1370253915148.html</a></p><div></div></div><img src ="http://www.aygfsteel.com/xiaomage234/aggbug/423321.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/xiaomage234/" target="_blank">ž®é©¬æ?/a> 2015-03-09 16:06 <a href="http://www.aygfsteel.com/xiaomage234/archive/2015/03/09/423321.html#Feedback" target="_blank" style="text-decoration:none;">å‘表评论</a></div>]]></description></item><item><title>EDA å’?SOA çš„èžåˆä»¥åŠå®žè·?在金èžè¡Œä¸šçš„应用http://www.aygfsteel.com/xiaomage234/archive/2014/12/30/421947.htmlž®é©¬æ?/dc:creator>ž®é©¬æ?/author>Tue, 30 Dec 2014 02:41:00 GMThttp://www.aygfsteel.com/xiaomage234/archive/2014/12/30/421947.htmlhttp://www.aygfsteel.com/xiaomage234/comments/421947.htmlhttp://www.aygfsteel.com/xiaomage234/archive/2014/12/30/421947.html#Feedback0http://www.aygfsteel.com/xiaomage234/comments/commentRss/421947.htmlhttp://www.aygfsteel.com/xiaomage234/services/trackbacks/421947.html阅读全文
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