DistributedSystems(3rd)英文无水印原版pdf第3版pdf所有页面使用FoxitReader、PDF-XChangeViewer、SumatraPDF和Firefox测试都可以打开本资源转载自网络,如有侵权,请联系上传者或csdn删除查看此书详细信息请在美国亚马逊官网搜索此书Copyright@2017MaartenvanSteenandAndrewS.TanenbaumPublishedbyMaartenvanSteenThisbookwaspreviouslypublishedby:PearsonEducation,IncISBN:978-15-430573-8-6(printedversion)ISBN:978-90-815406-2-9(digitalversion)Edition:3.Version:01(February2017)AllrightstotextandillustrationsarereservedbyMaartenvanSteenandAndrewS.Tanenbaum.Thisworkmaynotbecopied,reproduced,ortranslatedinwholeorpartwithoutwrittenpermissionofthepublisher,exceptforbriefexcerptsinreviewsorscholanyformofinformationstorageadaptationorwhatever,computersoftware,orbysimilarordissimilarmethodsnowknownordevelopedinthefutureisstrictlyforbiddenwithoutwrittenpermissionofthepublisherToMarielle,max,andelkeMVSToSuzanneBarbara,Marvin,Aronnathan,olivia,andmirteASTCONTENTSPreface1Introduction1.1Whatisadistributedsystem?Characteristic1:Collectionofautonomouscomputingelements2Characteristic2:SinglecoherentsystemMiddlewareanddistributedsystems1.2DesigngoalsSupportingresourcesharingMakingdistributiontransparent12Beingscalable15Pitfalls243Typesofdistributedsystems24Highperformancedistributedcomputing25Distributedinformationsystems34Pervasivesystems1.4Summary522Architectures552.1Architecturalstyles56Layeredarchitectures.57Object-basedandservice-orientedarchitectures62Resource-basedarchitectures64Publish-subscribearchitectures2.2MiddlewareorganizationWrappersInterceptors垂番Modifiablemiddleware752.3SystemarchitectureCONTENTSCentralizedorganizations76Decentralizedorganizations:peer-to-peersystemsHybridarchitectures2.4Examplearchitectures94TheNetworkFilesystem94TheWeb982.5Summary3Processes1033.1Threads..104Introductiontothreads104Threadsindistributedsystems1113.2Virtualization116Principleofvirtualizationapplicationofvirtualmachinestodistributedsystems,1223.3Clients124Networkeduserinterfaces124Client-sidesoftwarefordistributiontransparency1273.4Servers128Generaldesignissues129Objectservers133Example:TheApacheWebserver139Serverclusters,,,,,,,1413.5Codemigration152Reasonsformigratingcode152Migrationinheterogeneoussystems1583.6Summary1614Communication4.1Foundations164LayeredProtocols164TypesofCommunication.1724.2Remoteprocedurecall..173Basicrpcoperation174Parameterpassing178RPC-basedapplicationsupport182VariationsonrPc185Example:dCErPc,.1884.3Message-orientedcommunication193Simpletransientmessagingwithsockets.193Advancedtransientmessaging198Message-orientedpersistentcommunication206Example:IBM'sWebSpheremessage-queuingsystem212Example:AdvancedMessageQueuingProtocol(AMQP)....218DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFOCONTENTS4.4Multicastcommunication221Application-leveltree-basedmulticasting221Flooding-basedmulticasting225Gossip-baseddatadissemination2294.5Summary2345Naming2375.1Names,identifiersandaddresses2385.2Flatnaming.241Simplesolutions241Home-basedapproaches245Distributedhashtables246Hierarchicalapproaches2515.3Structurednaming256Namespaces.256Nameresolution259Theimplementationofanamespace264Example:TheDomainNameSystem271Example:TheNetworkFileSystem2785.4Attribute-basednaming283Directoryservices283Hierarchicalimplementations:LDAP285Decentralizedimplementations2885.5Summary2946Coordination2976.1Clocksynchronization.298Physicalclocks299Clocksynchronizationalgorithms3026.2Logicalclocks310Lamport'slogicalclocks310Vectorclocks3166.3Mutualexclusion321322acentralizedalgorithm.322adistributedalgorithm323atoken-ringalgorithm.325adecentralizedalgorithm3266.4Electionalgorithms329Thebullyalgorithm.,..330Aringalgorithm332Electionsinwirelessenvironments333Electionsinlarge-scalesystems.3356.5Locationsystems336DOWNLOADEDBYTEWIGOMIXMAIL.INFODS301VIllCONTENTSGPS:GlobalPositioningSystem337WhengPsisnotanoption339Logicalpositioningofnodes3396.6Distributedeventmatching..343Centralizedimplementations3436.7Gossip-basedcoordination349asgregation349Apeer-samplingservice350Gossip-basedoverlayconstruction3526.8Summary3537Consistencyandreplication3557.1Introduction356Reasonsforreplication356Replicationasscalingtechnique3577.2Data-centricconsistencymodels358Continuousconsistency359Consistentorderingofoperations364Eventualconsistency3737.3Client-centricconsistencymodels375MonotonicreadsMonotonicwrites.379Readyourwrite380Writesfollowreads3827.4ReplicamanagementFindingthebestserverlocation383Contentreplicationandplacement..385Contentdistribution..388Managingreplicatedobjects3937.5Consistencyprotocols.396Continuousconsistency..........396Primary-basedprotocols398Replicated-writeprotocolsCache-coherence403Implementingclient-centricconsistency,,...4077.6Example:CachingandreplicationintheWeb4097.7Summar4208Faulttoleran4238.1Introductiontofaulttolerance424Basicconcepts.424Failuodels427Failuremaskingbyredundancy8.2Processresilience432DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFO
2024/6/24 6:52:56 36.95MB Distributed Systems
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ThedatasetiscollectedbyYonseiUniversity.Wedeployedourmobilitymonitoringsystem,namedLifeMap,tocollectmobilitydataovertwomonthsinSeoul,Korea.LifeMapusedlearningschemeproposedinfollowingpaper.Pleasereferthispaperwhenyouuseourdataset.*YohanChon,ElmurodTalipov,HyojeongShin,andHojungCha.2011.Mobilityprediction-basedsmartphoneenergyoptimizationforeverydaylocationmonitoring.InProceedingsofthe9thACMConferenceonEmbeddedNetworkedSensorSystems(SenSys'11).ACM,NewYork,NY,USA,82-95.Visitourhomepageformoreinformation(http://lifemap.yonsei.ac.kr).
2024/6/23 17:17:11 21.79MB 用户移动性 数据集 LSTM
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自己封装的鼠标封装的鼠标场景漫游工具类RoamingScenceManager,跟界面没有任何关系,压缩包里面有三个工程,分别是Qt,Win32(原生OpenGL界面),MFC三个环境,里面都用到了RoamingScenceManager,用法简单,适合刚刚学opengl的新手构建场景。
2024/6/20 8:54:20 4.8MB OPenGL
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Django2WebDevelopmentCookbook100practicalrecipesonbuildingscalablePythonwebappswithDjango2,3rdEdition
2024/5/11 11:06:44 12.59MB django python
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1073页啊,够爽吧:Introduction15NewinThisRelease15IntroductiontoToad23DBAdminModule24ToadandOracleEnterpriseManager29QuickSearchBar30AdditionalResources31WorkingwithotherQuestProducts32KnowledgeXpert32UsingSQLOptimizerwithToad32BenchmarkFactory33QuestCodeTesterIntegration35ToadBasics37ToadTips37Errors37RACSupport37TaskBar&StatusBar38Toolbars,MenusandShortcutKeys40InstallationandAdministrationofToad64WindowPrivilegesandToad64ToadforOracle,Read-Only64RegisteringToad65SilentInstallation66GroupPolicyManagement71CitrixSupport71SQL*NetVersions72ConfigurationFiles73ServerSideObjectsInstallation93ConnectingtoOracle97ServerLoginWindow97CreateNewConnection99SelectingConnectionColor101SETROLE101AutoConnect103SavePasswordsforConnections104SelectandViewFavoriteConnections104Organizeyourlogindisplay105UseExistingConnection106SQLNETEditor106LDAPEditor107OracleHomes108TNSNamesEditor111Tutorials119CodeXpert119PL/SQLDebugger121SQL*Loader140TeamCoding158RMANTemplates164RMANScriptsinToad164WorkingwithRMANTemplates164ExecutingRMANScriptsfromToad165Comparing166DataDuplicates166CompareSingleObjects166ComparingDatabases167ComparingData174CompareFiles(DifferenceViewer)176ComparingSchemas180ControllingSessions188SelectSession188EndConnections188TestConnections188ConfigureUserLists188SessionInformation189ChangePassword190Commit&Rollback190ConnectandDisconnect191DBMS_Flashback191DiagnosingProblems193ViewExtents193IdentifySpaceDeficits193LogSwitchFrequencyMap194TablespaceMap194TKProfInterfaceWizard196UndoAdvisor198SegmentAdvisor200LogMinerInterface203HealthCheck207TraceFileBrowser226CodeXpert231DatabaseAdministration259AuditSQL/SysPrivs259NLSParameters260ToadFeaturesSecurity260ASMManager263Audit
2024/5/1 4:13:34 11.72MB Toad Oracle
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这一章我们探索了Spark作业的运行过程,但是没把整个过程描绘出来,好,跟着我走吧,letyouknow!我们先回顾一下这个图,DriverProgram是我们写的那个程序,它的核心是SparkContext,回想一下,从api的使用角度,RDD都必须通过它来获得。
下面讲一讲它所不为认知的一面,它和其它组件是如何交互的。
SparkContext实例化之后,在内部实例化两个很重要的类,DAGScheduler和TaskScheduler。
在standalone的模式下,TaskScheduler的实现类是TaskSchedulerImpl,在初始化它的时候SparkContext会传入一个Spa
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《甘肃省测绘成果目录汇交系统》使用手册甘肃省测绘局二〇〇九年十一月1、系统简介甘肃省测绘成果目录汇交系统是为了满足甘肃省各测绘行业向省测绘局汇报上交测绘成果而开发的系统。
该系统界面美观、操作简单方便。
2、系统安装的配置要求在安装之前,请确保计算机满足最低要求。
具体请参考下面的硬件和软件要求。
(1).硬件环境CPU:要求550MHz以上;
内存:最低要求为128M,推荐256M或以上;
硬盘:要求可用空间在1G以上;
显存:推荐32M或以上。
(2).软件环境操作系统:Windows2000(SP4)/WindowsXP(Sp2或以上)/Windows2003其他:需要安装.NetFrameWork2.0(本系统安装包中已经包含)3、系统安装先进入省测绘局网站(www.gsch.gov.com),在测绘成果一栏中下载”甘肃省测绘成果目录汇交系统”,解压下载后的压缩文件,双击Setup.exe文件,如图3-1所示:(图3-1)注意:如果要安装系统的电脑上没有安装.NetFramework2.0,那么本安装程序能够自动检测并安装,该过程可能需要很长时间,请耐心等待。
安装程序将弹出安装向导对话框,如图3-2所示:(图3-2)点击上图中的下一步,弹出如图3-3所示的界面:(图3-3)设置程序要安装的路径点击下一步,弹出如图3-4所示的界面:(图3-4)点击下一步按钮,将出现显示安装进度的界面,如图3-5所示:(图3-5)等待片刻,即可弹出安装完成界面。
如图3-6所示:(图3-6)4、功能介绍系统包括四大模块,即填报数据、数据导出、数据导入、测绘单位统计和项目统计。
(填报单位只需要使用填报数据与数据导出两模块即可!)(1).启动系统系统安装完毕后,双击桌面上的快捷方式或通过单击菜单中的命令启动系统,系统启动后的界面如图4-1所示:(图4-1)(2).填报数据该功能是本系统的最重要的功能,主要用于测绘单位填报测绘成果信息。
填报数据操作过程介绍如下:①.进入填报数据模块在系统主界面上将鼠标移动至”填报数据”图标上面,图标将动态发生变化,当“填报数据”字体的颜色变成黄色时,表明该图标获得焦点,左键单击即可进入“填报数据”模块。
如图4-2所示:(图4-2)②.填写填报单位和填报人信息进入“填报数据”模块后,需要填写填报单位与填报人的信息,其界面如图4-3所示。
(图4-3)注意:如果以前已经填写过这些信息了,可以直接选择填报单位名称与填报人名称,其他信息将自动显示,以免重复填写。
 在图4-3所示的界面中,除“填报人移动电话”项可以不填外,其余均不为空。
单位名称建议填写全名,以免与其他单位重复。
③.填写项目信息填报单位信息与填报人信息填写完整以后,点击“下一步”按钮,直接进入项目填写界面,如图4-4所示。
(图4-4)注:在零星测绘项目填报过程中,由于便于最终的统计,项目名称自己拟定一个,但不许重复,建议采用单位名+零星测绘+序号;
如白银市国土局零星测绘05;
日期格式必须按照指定的要求填写,格式为年—月;如2008年11月应该填写为2008-11,否则程序将会有产生异常。
④.浏览本单位已填报的项目信息单击“显示已填报项目”按钮,即可显示出本单位已填报的项目。
如图4-5所示。
⑤.修改已经填报的项目信息在显示已填报项目的表格上的左边列上单击鼠标,选中要修改的项目,这时我们可以看到填报项目界面中将显示该项目的信息,然后在要修改的地方修改其内容,修改完成后单击“确定”按钮,系统将弹出更新情况。
如图4-6所示。
注意:项目名称是不允许修改的。
⑥.删除填写有误的项目信息在显示已填报项目的表格上的左边列上单击鼠标,选中要删除的行,然后单击右下角的“删除选中行”按钮,将删除选中的项目。
注意:删除项目后将不可恢复,所以请谨慎使用本功能。
(图4-5)(图4-6)(3).数据导出该功能主要用于测绘单位将已填报的测绘单位信息导出成指定的格式,以便提交给省测绘局。
数据导出操作过程介绍如下:①.进入数据导出模块在系统主界面上将鼠标移动至”数据导出”图标上面,图标将动态发生变化,当“数据导出”字体的颜色变成黄色时,表明该图标获得焦点,左键单击即可进入“数据导出”模块。
如图4-7所示:(图4-7)②.导出上报文件当确定已经把本单位的所有测绘成果信息填写完毕后,点击本模块中的“另存为汇交数据文件(上报时用)”按钮,在弹出的另存为对话框中选择要保存的路径,单击确定即可在指定的位置生成一个上报文件,将该文件发送给测绘成果统计单位即可。
如图4-8所示:(图4-8)
2024/2/21 4:47:12 452KB 数据汇交软件
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英文原版,数字版,非影印版,无水印,有目录,第三版。
HowcanyoubringoutMySQL’sfullpower?WithHighPerformanceMySQL,you’lllearnadvancedtechniquesforeverythingfromdesigningschemas,indexes,andqueriestotuningyourMySQLserver,operatingsystem,andhardwaretotheirfullestpotential.Thisguidealsoteachesyousafeandpracticalwaystoscaleapplicationsthroughreplication,loadbalancing,highavailability,andfailover.UpdatedtoreflectrecentadvancesinMySQLandInnoDBperformance,features,andtools,thisthirdeditionnotonlyoffersspecificexamplesofhowMySQLworks,italsoteachesyouwhythissystemworksasitdoes,withillustrativestoriesandcasestudiesthatdemonstrateMySQL’sprinciplesinaction.Withthisbook,you’lllearnhowtothinkinMySQL.LearntheeffectsofnewfeaturesinMySQL5.5,includingstoredprocedures,partitioneddatabases,triggers,andviewsImplementimprovementsinreplication,highavailability,andclusteringAchievehighperformancewhenrunningMySQLinthecloudOptimizeadvancedqueryingfeatures,suchasfull-textsearchesTakeadvantageofmodernmulti-coreCPUsandsolid-statedisksExplorebackupandrecoverystrategies—includingnewtoolsforhotonlinebackups
2024/2/13 16:47:11 15.87MB High Performance MySQL 3rd
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StartingOutwithPython,GlobalEditionBy作者:TonyGaddis(author)ISBN-10书号:1292225750ISBN-13书号:9781292225753Edition版本:4thedition出版日期:2018-04-20Pages:748ForcoursesinPythonprogramming.Aclearandstudent-friendlyintroductiontothefundamentalsofPythonInStartingOutwithPython,4thEdition,TonyGaddis’accessiblecoverageintroducesstudentstothebasicsofprogramminginahigh-levellanguage.Python,aneasy-to-learnandincreasinglypopularobject-orientedlanguage,allowsreaderstobecomecomfortablewiththefundamentalsofprogrammingwithoutthetroublesomesyntaxthatcanbechallengingfornovices.WiththeknowledgeacquiredusingPython,studentsgainconfidenceintheirskillsandlearntorecognizethelogicbehinddevelopinghigh-qualityprograms.StartingOutwithPythondiscussescontrolstructures,functions,arrays,andpointersbeforeobjectsandclasses.AswithallGaddistexts,clearandeasy-to-readcodelistings,conciseandpracticalreal-worldexamples,focusedexplanations,andanabundanceofexercisesappearineverychapter.Updatestothe4thEditionincluderevised,improvedproblemsthroughout,andnewTurtleGraphicssectionsthatprovideflexibilityasassignable,optionalmaterial.PrefaceChapter1IntroductiontoComputersandProgrammingChapter2Input,Processing,andOutputChapter3DecisionStructuresandBooleanLogicChapter4RepetitionStructuresChapter5FunctionsChapter6FilesandExceptionsChapter7ListsandTuplesChapter8MoreAboutStringsChapter9DictionariesandSetsChapter10ClassesandObject-OrientedProgrammingChapter11InheritanceChapter12RecursionChapter13GUlProgrammingAppendixAInstalingPythonAppendixBIntroductiontoIDLEAppendixCTheASCllCharacterSetAppendixDPredefinedNamedColorsAppendixEMoreAbouttheimportStatementAppendixFInstallingModuleswiththepipUtilityAppendixGAnswerstoCheckpoints
2023/12/9 12:26:18 6.02MB Python
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In1971Dr.PaulC.Lauterburpioneeredspatialinformationencodingprinciplesthatmadeimageformationpossiblebyusingmagneticresonancesignals.NowLauterbur,"fatheroftheMRI",andDr.Zhi-PeiLianghaveco-authoredthefirstengineeringtextbookonmagneticresonanceimaging.Thislong-awaited,definitivetextwillhelpundergraduateandgraduatestudentsofbiomedicalengineering,biomedicalimagingscientists,radiologists,andelectricalengineersgainanin-depthunderstandingofMRIprinciples.Theauthorsuseasignalprocessingapproachtodescribethefundamentalsofmagneticresonanceimaging.Youwillfindaclearandrigorousdiscussionofthesecarefullyselectedessentialtopics:MathematicalfundamentalsSignalgenerationanddetectionprinciplesSignalcharacteristicsSignallocalizationprinciplesImagereconstructiontechniquesImagecontrastmechanismsImageresolution,noise,andartifactsFast-scanimagingConstrainedreconstructionCompletewithacomprehensivesetofexamplesandhomeworkproblems,PrinciplesofMagneticResonanceImagingisthemust-readbooktoimproveyourknowledgeofthisrevolutionarytechnique.
2023/12/6 10:39:31 104.27MB 磁共振  医学成像 生物医学工程 原理
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在日常工作中,钉钉打卡成了我生活中不可或缺的一部分。然而,有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚,我总是得牢记打开钉钉应用,点击"工作台",再找到"考勤打卡"进行签到。有时候因为工作忙碌,会忘记打卡,导致考勤异常,影响当月的工作评价。而且,由于我使用的是苹果手机,有时候系统更新后,钉钉的某些功能会出现异常,使得打卡变得更加麻烦。 另外,我的家人使用的是安卓手机,他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说,每次打卡都是一次挑战。他们总是担心自己会操作失误,导致打卡失败。 为了解决这些烦恼,我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习,我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。
2024-04-09 15:03 15KB 钉钉 钉钉打卡