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

DatabaseSystemConcepts——数据库系统概念第六版（英文版）作者：AbrahamSilberschatz(YaleUniversity)HenryF.Korth(LehighUniversity)S.Sudarshan(IndianInstituteofTechnology,Bombay)本书目录：Chapter1Introduction1.1Database-SystemApplications11.2PurposeofDatabaseSystems31.3ViewofData61.4DatabaseLanguages91.5RelationalDatabases121.6DatabaseDesign151.7DataStorageandQuerying201.8TransactionManagement221.9DatabaseArchitecture231.10DataMiningandInformationRetrieval251.11SpecialtyDatabases261.12DatabaseUsersandAdministrators271.13HistoryofDatabaseSystems291.14Summary31Exercises33BibliographicalNotes35Chapter2IntroductiontotheRelationalModel2.1StructureofRelationalDatabases392.2DatabaseSchema422.3Keys452.4SchemaDiagrams462.5RelationalQueryLanguages472.6RelationalOperations482.7Summary52Exercises53BibliographicalNotes55Chapter3IntroductiontoSQL3.1OverviewoftheSQLQueryLanguage573.2SQLDataDefinition583.3BasicStructureofSQLQueries633.4AdditionalBasicOperations743.5SetOperations793.6NullValues833.7AggregateFunctions843.8NestedSubqueries903.9ModificationoftheDatabase983.10Summary104Exercises105BibliographicalNotes112Chapter4IntermediateSQL4.1JoinExpressions1134.2Views1204.3Transactions1274.4IntegrityConstraints1284.5SQLDataTypesandSchemas1364.6Authorization1434.7Summary150Exercises152BibliographicalNotes156Chapter5AdvancedSQL5.1AccessingSQLFromaProgrammingLanguage1575.2FunctionsandProcedures1735.3Triggers1805.4RecursiveQueries1875.5AdvancedAggregationFeatures1925.6OLAP1975.7Summary209Exercises211BibliographicalNotes216Chapter6FormalRelationalQueryLanguages6.1TheRelationalAlgebra2176.2TheTupleRelationalCalculus2396.3TheDomainRelationalCalculus2456.4Summary248Exercises249BibliographicalNotes254Chapter7Datab

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CopyrightPrefacexvChapter1.Introduction1Section1.1.WhatIsanOperatingSystem?4Section1.2.HistoryofOperatingSystems6Section1.3.OperatingSystemConcepts19Section1.4.SystemCalls26Section1.5.OperatingSystemStructure42Section1.6.OutlineoftheRestofThisBook51Section1.7.Summary51Problems52Chapter2.Processes55Section2.1.IntroductiontoProcesses55Section2.2.InterprocessCommunication68Section2.3.ClassicalIPCProblems88Section2.4.Scheduling93Section2.5.OverviewofProcessesinMINIX3112Section2.6.ImplementationofProcessesinMINIX3125Section2.7.TheSystemTaskinMINIX3192Section2.8.TheClockTaskinMINIX3204Section2.9.Summary214Problems215Chapter3.Input/Output221Section3.1.PrinciplesofI/OHardware222Section3.2.PrinciplesofI/OSoftware229Section3.3.Deadlocks237Section3.4.OverviewofI/OinMINIX3252Section3.5.BlockDevicesinMINIX3261Section3.6.RAMDisks271Section3.7.Disks278Section3.8.Terminals302Section3.9.Summary366Problems367Chapter4.MemoryManagement373Section4.1.BasicMemoryManagement374Section4.2.Swapping378Section4.3.VirtualMemory383Section4.4.PageReplacementAlgorithms396Section4.5.DesignIssuesforPagingSystems404Section4.6.Segmentation410Section4.7.OverviewoftheMINIX3ProcessManager420Section4.8.ImplementationoftheMINIX3ProcessManager447Section4.9.Summary475Problems476Chapter5.FileSystems481Section5.1.Files482Section5.2.Directories491Section5.3.FileSystemImplementation497Section5.4.Security526Section5.5.ProtectionMechanisms537Section5.6.OverviewoftheMINIX3FileSystem548Section5.7.ImplementationoftheMINIX3FileSystem566Section5.8.Summary606Problems607Chapter6.ReadingListandBibliography611Section6.1.SuggestionsforFurtherReading611Section6.2.AlphabeticalBibliography618AppendixA.InstallingMIN

Linux下的C语言实现的AES5种模式加密算法实现，编译时可全编译或选择需要的模式.c+core.cmain函数可自定义调用。

带内置选项的Webpack4BoilerplateES6/Sass可以更改预处理器（较少/手写笔）此Webpack4Boilerplate带有2个版本：npmrunbuild:dev-＞使用livereload，sourcemap在localhost:8080上启动开发服务器npmrunbuild:prod-＞使用以下命令将产品文件创建到/dist：将sass/stylus/less编译为CSS供应商前缀的自动前缀（浏览器兼容性）将ES6+编译为ES5缩小CSS/JSuglyfingjs代码哈希CSS和JS文件（用于浏览器缓存的文件版本控制-＞缓存清除）设置gitclone在项目文件夹中运行npminstallnpmrunbuild:dev预处理程序支持（默认值：Sass）-＞如果您想更

Grid+Report5.6，内有grdes50.dll和gregn50.dll两文件和安装包Grid++Report5.6.exe,先安装完成后，把两个dll文件复制到安装目录即可。

Multisim12官方简体中文汉化包安装说明：1、下载汉化包2、解压文件，提取Chinese文件夹。
此文件夹中包含了Multisim中文本地化所需的所有文件；
3、关闭Multisim和Ultiboard;4、将Chinese文件夹复制粘贴至以下Multisim安装文件夹中:C:\ProgramFiles\NationalInstruments\CircuitDesignSuite12.0\stringfiles5、打开Multisim;6、点击Options?GlobalPreferences;7、选择General一栏;8、点击Language，然后在下拉菜单中选择Chinese;9、单击确定;10、重新启动Multisim。

资源为IGBT模块二极管热模型，可用于PLECS仿真。
具体包括：IGA30N60H3_IGBT.xmlIGB10N60T_IGBT.xmlIGB15N60T_IGBT.xmlIGB20N60H3_IGBT.xmlIGB30N60H3_IGBT.xmlIGB30N60T_IGBT.xmlIGB50N60T_IGBT.xmlIGD06N60T_IGBT.xmlIGP06N60T_IGBT.xmlIGP10N60T_IGBT.xmlIGP15N60T_IGBT.xmlIGP20N60H3_IGBT.xmlIGP30N60H3_IGBT.xmlIGP30N60T_IGBT.xmlIGP50N60T_IGBT.xmlIGU04N60T_IGBT.xmlIGW08T120_IGBT.xmlIGW100N60H3_IGBT.xmlIGW15N120H3_IGBT.xmlIGW15T120_IGBT.xmlIGW20N60H3_IGBT.xmlIGW25N120H3_IGBT.xmlIGW25T120_IGBT.xmlIGW30N60H3_IGBT.xmlIGW30N60TP_IGBT.xmlIGW30N60T_IGBT.xmlIGW40N120H3_IGBT.xmlIGW40N60H3_IGBT.xmlIGW40N60TP_IGBT.xmlIGW40T120_IGBT.xmlIGW50N60H3_IGBT.xmlIGW50N60TP_IGBT.xmlIGW50N60T_IGBT.xmlIGW60N60H3_IGBT.xmlIGW60T120_IGBT.xmlIGW75N60H3_IGBT.xmlIGW75N60T_IGBT.xmlIKA06N60T_IGBT.xmlIKA08N65ET6_IGBT.xmlIKA10N60T_IGBT.xmlIKA10N65ET6_IGBT.xmlIKA15N60T_IGBT.xmlIKA15N65ET6_IGBT.xmlIKB06N60T_IGBT.xmlIKB10N60T_IGBT.xmlIKB15N60T_IGBT.xmlIKB20N60H3_IGBT.xmlIKB20N60TA_IGBT.xmlIKB20N60T_IGBT.xmlIKB30N65ES5_IGBT.xmlIKB40N65ES5_IGBT.xmlIKD03N60RF_IGBT.xmlIKFW40N60DH3E_IGBT.xmlIKFW50N60DH3E_IGBT.xmlIKFW50N60DH3_IGBT.xmlIKFW50N60ET_IGBT.xmlIKFW60N60DH3E_IGBT.xmlIKFW60N60EH3_IGBT.xmlIKFW75N60ET_IGBT.xmlIKFW90N60EH3_IGBT.xmlIKI04N60T_IGBT.xmlIKP04N60T_IGBT.xmlIKP06N60T_IGBT.xmlIKP10N60T_IGBT.xmlIKP15N60T_IGBT.xmlIKP20N60H3_IGBT.xmlIKP20N60TA_IGBT.xmlIKP20N60T_IGBT.xmlIKQ100N60T_IGBT.xmlIKQ120N60T_IGBT.xmlIKQ40N120CH3_IGBT.xmlIKQ40N120CT2_IGBT.xmlIKQ50N120CH3_IGBT.xmlIKQ50N120CT2_IGBT.xmlIKQ75N120CH3_IGBT.xmlIKQ75N120CT2_IGBT.xmlIKU04N60T_IGBT.xmlIKW08N65H5_IGBT.xmlIKW08T120_IGBT.xmlIKW15N120H3_IGBT.xmlIKW15N120T2_IGBT.xmlIKW15N65H5_IGBT.xmlIKW15T120_IGBT.xmlIKW20N60H3_IGBT.xmlIKW20N60TA_IGBT.xmlIKW20N60T_IGBT.xmlIKW25N120H3_IGBT.xmlIKW25N120T2_IGBT.xmlIKW25T120_IGBT.xmlIKW30N60DTP_IGBT.xmlIKW30N60H3_IGBT.xmlIKW30N60TA_IGBT.xmlIKW30N60T_IGBT.xmlIKW30N65ES5_IGBT.xmlIKW40N120H3_IGBT.xmlIKW40N120T2_IGBT.xmlIKW40N120T2_v2_IGBT.xmlIKW40N60DTP_IGB

PartIMetricSearchinginaNutshellOverview31.FOUNDATIONSOFMETRICSPACESEARCHING51TheDistanceSearchingProblem62TheMetricSpace83DistanceMeasures93.1MinkowskiDistances103.2QuadraticFormDistance113.3EditDistance123.4TreeEditDistance133.5Jaccard’sCoefficient133.6HausdorffDistance143.7TimeComplexity144SimilarityQueries154.1RangeQuery154.2NearestNeighborQuery164.3ReverseNearestNeighborQuery174.4SimilarityJoin174.5CombinationsofQueries184.6ComplexSimilarityQueries185BasicPartitioningPrinciples205.1BallPartitioning205.2GeneralizedHyperplanePartitioning215.3ExcludedMiddlePartitioning215.4Extensions216PrinciplesofSimilarityQueryExecution226.1BasicStrategies226.2IncrementalSimilaritySearch257PoliciesforAvoidingDistanceComputations267.1ExplanatoryExample277.2Object-PivotDistanceConstraint287.3Range-PivotDistanceConstraint307.4Pivot-PivotDistanceConstraint317.5Double-PivotDistanceConstraint337.6PivotFiltering348MetricSpaceTransformations358.1MetricHierarchies368.1.1Lower-BoundingFunctions368.2User-DefinedMetricFunctions388.2.1SearchingUsingLower-BoundingFunctions388.3EmbeddingMetricSpace398.3.1EmbeddingExamples398.3.2ReducingDimensionality409ApproximateSimilaritySearch419.1Principles419.2GenericAlgorithms449.3MeasuresofPerformance469.3.1ImprovementinEfficiency469.3.2PrecisionandRecall469.3.3RelativeErroronDistances489.3.4PositionError4910AdvancedIssues5010.1StatisticsonMetricDatasets5110.1.1DistributionandDensityFunctions5110.1.2DistanceDistributionandDensity5210.1.3HomogeneityofViewpoints5410.2ProximityofBallRegions5510.3PerformancePrediction58Contentsix10.4TreeQualityMeasures6010.5ChoosingReferencePoints632.SURVEYOFEXISTINGAPPROACHES671BallPartitioningMethods671.1Burkhard-KellerTree6

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。