全家三代方案

POS應(yīng)用架構(gòu)POSnPOS2POS1會(huì)員外賣(mài)支付團(tuán)購(gòu)促銷(xiāo)POS云服務(wù)憑證POS應(yīng)用架構(gòu)：支付服務(wù)POSnPOS2POS1支付服務(wù)POS云服務(wù)飛碼平臺(tái)天府通羊城通儲(chǔ)值卡SC應(yīng)用架構(gòu)ClientnClient2Client1庫(kù)存損益進(jìn)貨日?qǐng)?bào)訂貨SC云服務(wù)報(bào)表HTTPHTTPSC應(yīng)用架構(gòu)：報(bào)表服務(wù)PC手機(jī)平板報(bào)表服務(wù)SC云服務(wù)HTTPHTTP系統(tǒng)開(kāi)發(fā)說(shuō)明5系統(tǒng)別運(yùn)行平臺(tái)數(shù)據(jù)庫(kù)開(kāi)發(fā)語(yǔ)言軟件結(jié)構(gòu)備注門(mén)店P(guān)OSUbuntukylin14.04,WindowsMariaDBJavaJDK8.0CS門(mén)店后臺(tái)（SC）Windows，IE9以上VS2012,C#BS總部(HQ)Windows，IE9以上SQLServer2008R264位VS2012,C#BS

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1.登錄2.訂貨1)條碼訂貨錄入3.盤(pán)點(diǎn)1)條碼盤(pán)點(diǎn)錄入4.貨架貨架管理錄入5.查價(jià)售價(jià)檢查店長(zhǎng)寶典1.業(yè)績(jī)看板2.分類(lèi)銷(xiāo)售3.店鋪排行POS監(jiān)控

1.POS實(shí)時(shí)監(jiān)控2.版本更新計(jì)劃系統(tǒng)整體架構(gòu)舉例20

DataController

DBServer光伏電站

WebServer???

Commserver云端機(jī)房工作站移動(dòng)APP控制中心專(zhuān)線/寬帶

寬帶/3G3GDB_ServerAP_ServerReportserver工作站系統(tǒng)整體架構(gòu)舉例DataCollectorData

PoolInterfaceComm.ClientComm.ServerTCPIPDBMS云端電站設(shè)備逆變器、電表、儲(chǔ)能、環(huán)境監(jiān)測(cè)、…能支撐高并發(fā)的服務(wù)端結(jié)構(gòu)BeDistributedandReactive傳統(tǒng)應(yīng)用程序結(jié)構(gòu)一個(gè)線程(thread)同步阻塞式(synchronousblocking)的處理一件任務(wù)過(guò)多的線程或進(jìn)程(process)開(kāi)銷(xiāo)過(guò)大并發(fā)控制(ConcurrencyControl)和RaceCondition問(wèn)題越趨復(fù)雜C10k問(wèn)題:連接超過(guò)10k時(shí)，由于系統(tǒng)固有結(jié)構(gòu)問(wèn)題，性能急劇下降23AsynchronousModel擺脫操作系統(tǒng)級(jí)別的threads/processes將一個(gè)任務(wù)拆解成多個(gè)松散耦合、并可等候通知的events(ReactorPattern)采用Non-blockingI/O(非組塞式的I/O)，將等候時(shí)間騰出Elastic(有彈性的)：很容易的增加或減少服務(wù)器(scaleupanddown)和fail-over24Sync.vsAsync.“WhyThreadsAreABadIdea(formostpurposes),”JohnOusterhout,SunMicroLab,1995

“WhyEventsAreABadIdea(forhigh-concurrencyservers),”RobvonBehren,UCBerkeley,2003

Node.js出現(xiàn),2009

OneofthebiggestadvantagesdeliveredbyasynchronousI/Oisthatitreducesthenumberofconcurrentthreadsusedbyanapplication.Asprovedintheabovetests,threadsareveryefficientrelatedtomemoryandcontextswitching.InI/OboundapplicationstheyeasilydeliverthesameperformanceasasynchronousI/O.However,inapplicationsthatrunbothI/OandCPUboundoperations,havingalotofthreadsthatarewaitingfortheI/OoperationstocompletemeansthattherewillbelessCPUtimeforthreadsrunningCPUboundoperationsandwhicharetheonlyonesthatactuallyneedit.25異步模型編程框架epoll–LinuxkernelsystemcalllibeventforCNode.jsforJavaScriptPlainJavaNIOVert.xforJava,Groovy,JavaScript,Ruby,Python,Scala,Clojure,CeylonNettyRatpackUndertow…26Vert.x2011年由TimFox在VMware開(kāi)始開(kāi)發(fā)，原名Node.xPolyglot:支持多語(yǔ)言(Java,Groovy,Ruby,JavaScript,Python,…)2013元月開(kāi)始轉(zhuǎn)入EclipseFoundation2014五月在JAXInnovationawards獲得“MostInnovativeJavaTechnology”EclipsePublicLicense1.0+ApacheLicense2.0

27Vert.x28dispatcherhandlersthreadpoolReactorPatterneventloopVert.x29handlersthreadpoolthread-1handler1handler2Vert.x特點(diǎn)在同一個(gè)線程運(yùn)行verticleinstance垂直：多個(gè)verticlesinstances(perCPUcore),充分運(yùn)用CPUpower水平：clustering,通過(guò)eventbus或shareddata傳遞消息Eventbus消息模型:publish-subscribe,point-to-point支持blockingcode(outofmaineventloop)很多extensionmodules:web,mongoDB,JDBC,Redis,MySQL/PostgreSQL,Mail,Rx,CircuitBreaker,Docker,Hazelcast,…30Vert.xBenchmarking31

系統(tǒng)架構(gòu)32oneinstancepercoreVerticleEventBusVerticleVerticleVerticleHighAvailabilityClusterSharedData:maps,locks