Transaction Slide

1. COM+COM+
Greg HopeGreg Hope
ArchitectArchitect
Microsoft COM+ TeamMicrosoft COM+ Team
9:00
11:00
1:30
3:30
7:00
Overview
Faults
Tolerance
T Models
Party
TP mons
Lock Theory
Lock Techniq
Queues
Workflow
Log
ResMgr
CICS & Inet
Adv TM
Cyberbrick
Files &Buffers
COM+
Corba
Replication
Party
B-tree
Access Paths
Groupware
Benchmark
Mon Tue Wed Thur Fri

2. AgendaAgenda
• Where we’ve beenWhere we’ve been
– COM, OLE, ActiveX Controls, MTS, WinDNACOM, OLE, ActiveX Controls, MTS, WinDNA
• Where we areWhere we are
– COM+ 1.0, Windows 2000COM+ 1.0, Windows 2000
– Attribute based programming modelAttribute based programming model
– New and better servicesNew and better services
• Where we’re goingWhere we’re going
– Web ComputingWeb Computing
– Appliance ComputingAppliance Computing
– Simplicity and ReliabilitySimplicity and Reliability

3. Microsoft:Microsoft: COM+ InsideCOM+ Inside
Linking and EmbeddingLinking and Embedding
AutomationAutomation
ActiveX ControlsActiveX Controls
AuthenticodeAuthenticode
DCOMDCOM
MTSMTS
Component ServicesComponent Services

4. ContentContent
DeveloperDeveloper
WebWeb
DeveloperDeveloper
ApplicationApplication
DeveloperDeveloper
SystemSystem
DeveloperDeveloper
BorlandBorland
DelphiDelphi
AdobeAdobe
PageMakerPageMaker
MacromediaMacromedia
DirectorDirector
PowerSoftPowerSoft
PowerBuilderPowerBuilder
NetObjectsNetObjects
FusionFusion
SoftQuadSoftQuad
HotMetal ProHotMetal Pro
BorlandBorland
IntrabuilderIntrabuilder
PowerSoftPowerSoft
NetImpactNetImpact
BorlandBorland
LatteLatte
Tools:Tools: COM+ InsideCOM+ Inside

5. COM+COM+
Worlds Most Successful Object ModelWorlds Most Successful Object Model
• Strong technical featuresStrong technical features
– Binary standard, language neutral, dynamic discoveryBinary standard, language neutral, dynamic discovery
• Proven flexible and adaptableProven flexible and adaptable
– OLE, Compound Documents, ActiveX Controls, MTSOLE, Compound Documents, ActiveX Controls, MTS
– Used on >200M systems world-wideUsed on >200M systems world-wide
• Widespread tool and language supportWidespread tool and language support
– > 3M developers> 3M developers
– Visual Studio and third partiesVisual Studio and third parties
• Thriving component marketplaceThriving component marketplace
– ActiveX ControlsActiveX Controls

6. ExternalExternal
ApplicationsApplications
Legacy SystemsLegacy Systems
DatabasesDatabases
ThinThin
ClientClient
RichRich
ClientClient
Windows DNAWindows DNA
A comprehensive platform scaling from theA comprehensive platform scaling from the
department to the Internetdepartment to the Internet
“How you gather, manage and use information will determine whetherHow you gather, manage and use information will determine whether
you win or lose.you win or lose.” Bill Gates, Business @ the Speed of ThoughtBill Gates, Business @ the Speed of Thought

7. PC Week Labs BenchmarkPC Week Labs Benchmark
“It's clear the company's IIS (Internet Information Server) Web server and
MTS (Microsoft Transaction Server) transaction monitor, both included with
the Windows NT 4.0 operating system, are fast enough for any business on
earth.” (http://www.zdnet.com/pcweek/stories/news/0,4153,409380,00.html)

8. Performance: IIS on COM+/NT5 is up to 6x faster thanPerformance: IIS on COM+/NT5 is up to 6x faster than
IIS on MTS/NT4 (* beta results)IIS on MTS/NT4 (* beta results)
IIS Atomic Tests
0
50
100
150
200
250
300
350
400
450
500
AdRotatorApplication
AdRotatorSession
APTSession
BCSession
AdRotatorPage
BCPage
Transaction
RequestsperSecond
Windows 2000 Beta 3
NT4/MTS

9. TPC-C: COM+ and SQL ServerTPC-C: COM+ and SQL Server

10. AdministrationAdministration
ServersServers
TransactionsTransactions
SecuritySecurity
QueuingQueuing
EventsEvents
ClustersClusters
IMDBIMDB
SS
EE
RR
VV
II
CC
EE
SS
COM+COM+
Data-typesData-types
Self DescribingSelf Describing
Dynamic InvocationDynamic Invocation
““Leak-proof” MemoryLeak-proof” Memory
ContextContext
InterceptionInterception
RR
UU
NN
TT
II
MM
EE
COMCOM
ToolsTools
DevelopersDevelopers
UbiquityUbiquity
MarketMarket
Multi-LanguageMulti-Language
DiscoveryDiscovery

11. 19971997
COM/MTS (NT4OP)COM/MTS (NT4OP)
ServersServers
TransactionsTransactions
AdministrationAdministration
COM+:COM+: Incremental, Additive InvestmentIncremental, Additive Investment
19961996
COM (NT4)COM (NT4)
RemotingRemoting
SecuritySecurity
ActiveX ControlsActiveX Controls
1999 (B3 now)1999 (B3 now)
COM+ 1.0 (Win2000)COM+ 1.0 (Win2000)
QueuingQueuing
EventsEvents
Load BalancingLoad Balancing
IMDBIMDB
Integrated andIntegrated and
EnhancedEnhanced
19921992
COM (Win3.1)COM (Win3.1)
OLEOLE
Cmpd DocsCmpd Docs
AutomationAutomation

12. ServerServer
ClientClient
ContextContext
Programming ModelProgramming Model
Interface, Attributes, ContextInterface, Attributes, Context
AttributesAttributes
IUnknown

13. Programming ModelProgramming Model
ImplementationImplementation
• Attributes determine ContextAttributes determine Context
– Metadata accessed via Catalog interfacesMetadata accessed via Catalog interfaces
– Stored in Component LibraryStored in Component Library
– Integrated with DS / MSI / RegistryIntegrated with DS / MSI / Registry
– Client negotiation via monikersClient negotiation via monikers
• Context determines InterceptersContext determines Intercepters
• Intercepter implements attribute semanticsIntercepter implements attribute semantics
ServerServerInterceptorsInterceptorsClientClient
CatalogCatalog
AttributesAttributes
ContextContext

14. Context
Activators
Process
Activators
Machine
Activators
Server
Process
Server
Context
Client
Process
A
B
ActivatorsActivators
Intercepting Object CreationIntercepting Object Creation

15. Context C1
Context C2
Client
Side
Policies
Server
Side
Policies
Call,
Return
Enter,
Leave
Pass Buffer
Pass Buffer
Proxy Stub
(Cross Apartment or Process)
(Same Apartment)A B
PoliciesPolicies
Intercepting Method InvocationIntercepting Method Invocation

16. Example:Example:
Queued ComponentsQueued Components
pBook = new [Queued] Book;pBook = new [Queued] Book;
pBook.Order(nQuantity);pBook.Order(nQuantity);
ClientClient MSMQMSMQ ServerServerPlayerPlayerRecorderRecorder
CatalogCatalog
QueueableQueueable
QueuedQueued
[Queueable] Class Book {[Queueable] Class Book {
public void Order(int nAmount) {…}public void Order(int nAmount) {…}
}}
ClientClient ServerServer

17. Example:Example:
Automatic TransactionsAutomatic Transactions
DataData
ServerServerTransactionTransactionClientClient
DTCDTC
pBook = new Book;pBook = new Book;
pBook.Order(nQuantity);pBook.Order(nQuantity);
[Transacted] Class Book {[Transacted] Class Book {
public void Order(int nAmount) {…}public void Order(int nAmount) {…}
}}
ClientClient ServerServer

18. Example:Example:
Component Load BalancingComponent Load Balancing
ClientClient
ServerServer
RouterRouter ServerServer
ServerServer
Response TimeResponse Time
TrackerTracker
ApplicationApplication
ClusterCluster
pBook = new Book;pBook = new Book;
pBook.Order(nQuantity);pBook.Order(nQuantity);
[LoadBalanceable] Class Book {[LoadBalanceable] Class Book {
public void Order(int nAmount) {…}public void Order(int nAmount) {…}
}}
ClientClient ServerServer

19. Performance: Load Balancing Near Linear ScalingPerformance: Load Balancing Near Linear Scaling
(* beta results)(* beta results)
COM+ Load Balancing
0
100
200
300
400
500
600
700
800
900
0 1 2 3 4 5 6 7 8 9
Machines
TransactionsperSecond
Router included in cluster
Router not included in cluster

20. Example:Example:
Object PoolingObject Pooling
ServerServerPoolerPoolerClientClient
pBook = new Book;pBook = new Book;
pBook.Order(nQuantity);pBook.Order(nQuantity);
[[PoolablePoolable] Class Book {] Class Book {
Public void Order(int nAmount) {…}Public void Order(int nAmount) {…}
}}
ClientClient ServerServer
ServerServer
ServerServer

21. Performance: Object Pooling (* beta results)Performance: Object Pooling (* beta results)
Stateful Component vs. Pooled Component
0
200
400
600
800
1000
1200
1400
0 50 100 150
threads
tps
128 Pooled Components
Stateful (COM+)

22. Performance: Object Pooling Governors Give SamePerformance: Object Pooling Governors Give Same
Throughput with less resources (* beta results)Throughput with less resources (* beta results)
Effect of COM+ Pool Size Using C++ ODBC
Component
0
200
400
600
800
1000
1200
1400
0 50 100 150
threads
tps
4 Pooled Components
8 Pooled Components
16 Pooled Components
32 Pooled Components
64 Pooled Components
128 Pooled Components

23. COM+: TamingCOM+: Taming
Disruptive ForcesDisruptive Forces
WebWeb AppliancesAppliances
ReliabilityReliabilitySimplicitySimplicity
“...products that do not appear to be useful to our customers today...products that do not appear to be useful to our customers today
(that is disruptive technologies) may squarely address their needs(that is disruptive technologies) may squarely address their needs
tomorrow.”tomorrow.” Clayton M. Christensen The Innovators DilemaClayton M. Christensen The Innovators Dilema

24. Web ComputingWeb Computing
Disruptive Technology?Disruptive Technology?
Personal
Computing Era
Web
Computing Era
“overperforming”
“good enough”
Mainframe
Computing Era
MS-DOS
Win 3.x
Win98/NT
Web 1.0

25. Today’s “Good Enough” Web (Not!)Today’s “Good Enough” Web (Not!)
• HourglassesHourglasses
– World Wide WaitWorld Wide Wait
• User state is tied to a machineUser state is tied to a machine
(Cookies, Wallet, Preferences)(Cookies, Wallet, Preferences)
– Multiple systems, multiple usersMultiple systems, multiple users
• Unreliable partsUnreliable parts
(Leaks, hangs, reboots, network)(Leaks, hangs, reboots, network)
– Duplicate or missing ordersDuplicate or missing orders
– Unavailability/data corruptionUnavailability/data corruption
• Clients are underutilizedClients are underutilized
– Lowest common denominator effectLowest common denominator effect
• Servers are hardServers are hard
– Handling concurrent requestsHandling concurrent requests
– State managementState management
Dunce

26. WinDNA on the WebWinDNA on the Web
• Connecting Windows Clients and Windows Servers via Web (HTTP)Connecting Windows Clients and Windows Servers via Web (HTTP)
– Richest user experience (Adaptive UI)Richest user experience (Adaptive UI)
• ConsumersConsumers
– Web Lifestyle applications (ecomm, games, calendar )Web Lifestyle applications (ecomm, games, calendar )
• BusinessBusiness
– Web Enabled personal productivity (collaboration, add-ons)Web Enabled personal productivity (collaboration, add-ons)
– Web Native (ecomm, games)Web Native (ecomm, games)
– Web Access (departmental, corporate LOB apps)Web Access (departmental, corporate LOB apps)
• Service ProvidersService Providers
– ISP’s, Web FarmsISP’s, Web Farms
• SimplicitySimplicity
– via reduction, consistency, unificationvia reduction, consistency, unification
• ReliabilityReliability
– self-everything, tamper-proofself-everything, tamper-proof
• ScalabilityScalability
– up, down, outup, down, out

27. N-tier: Web Computing ModelN-tier: Web Computing Model
• Rendering - Interacts with UserRendering - Interacts with User
• Presentation - Code that binds to renderingPresentation - Code that binds to rendering
– May vary depending on type/functionality of clientMay vary depending on type/functionality of client
• Client Logic - Client code that talks to the ServerClient Logic - Client code that talks to the Server
– May run on client, personal tier, or serverMay run on client, personal tier, or server
– May have access to read-only snapshot data (catalog)May have access to read-only snapshot data (catalog)
– May manage per-client writable data (shopping cart)May manage per-client writable data (shopping cart)
• Server Logic - Server code that runs the businessServer Logic - Server code that runs the business
– Direct access to business dataDirect access to business data
• Database - Shared, Persistent storeDatabase - Shared, Persistent store
RenderingRendering PresentationPresentation
DataData
Client LogicClient Logic
CatalogCatalog
CartCart
Server LogicServer Logic
OrderOrder
RichRich
ReachReach
RichRich

28. PhonePhone eBookseBooks
GamingGaming
WebTVWebTV
AutoPCAutoPC
Windows 98,Windows 98,
Windows 2000Windows 2000
Smart objectsSmart objects
Appliance Computing:Appliance Computing:
Disruptive Technology?Disruptive Technology?
““Why good products can fail, the PersonalWhy good products can fail, the Personal
Computer is so complex, and InformationComputer is so complex, and Information
Appliances are the solutionAppliances are the solution””
Donald A. Norman, The Invisible ComputerDonald A. Norman, The Invisible Computer

29. HubHub
Power LinePower Line
NetworkNetwork
CameraCamera ScannerScanner
PrinterPrinter
WebWeb
phonephone
NetworkNetwork
cameracamera
IEEE 1394IEEE 1394
EntertainmentEntertainment
CenterCenterCommunicationsCommunications
and controland control
HomeRFHomeRF
Home NetworkingHome Networking
HubHub
Public networksPublic networks
PSTN, InternetPSTN, Internet
HomePNAHomePNA
Phone Line NetworkPhone Line Network
Internal Details Are ComplexInternal Details Are Complex

30. Public networksPublic networks
PSTN, InternetPSTN, Internet
What Users & Apps Must SeeWhat Users & Apps Must See
Consistent Objects EverywhereConsistent Objects Everywhere

31. Getting StartedGetting Started
• WinDNAWinDNA www.microsoft.com/dnawww.microsoft.com/dna
• COM+COM+ www.microsoft.com/compluswww.microsoft.com/complus
• Windows 2000Windows 2000 www.microsoft.com/windowswww.microsoft.com/windows
• ToolsTools msdn.microsoft.com/vstudiomsdn.microsoft.com/vstudio