OW2 Meeting Towards Building a Cloud Platform for Service Oriented Software Development
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1 Towards Building a Cloud Platform for Service Oriented Software Development Hailong Sun (Assistant Professor) Beihang University Sept. 21, 2010
2 Motivation Existing work The state of the art Conclusion Agenda
3 Traditional software development Requirement Specification Design Coding Test Deployment - the support of various development tools - the runtime environment for both test and production running - Usually, developers who should focus on application logic development have to take care of these issues themselves
4 Service oriented software design & development Basic approach Improve the productivity of software development through reusing of loosely-coupled services over Internet OW2 Meeting Service oriented software development Applications Component Services Key issues Service management Service composition Runtime management Infrastructure
5 Many tools and middleware involved Tools Business process modeler Service composition tool Verification and test tool Service deployment tool Monitoring tool Middleware Service container Composite service execution engine (workflow engine) Service bus
6 Problems The extra work for developers Install and configure various development tools Install and configure runtime supporting middleware Obtain and maintain underlying resources Machines Networks However they should focus on development. Dev. Service!
7 The crux of cloud computing Service IaaS: Infrastructure as a Service PaaS: Platform as a Service SaaS: Software as a Service Can we make use of cloud computing to save developers from the extra work? An online development environment A hosting platform An on-demand infrastructure service
8 Service-oriented software architecture Applications SaaS PaaS Software Production and Running IaaS Infrastructural resources
9 R&D goal Building a cloud platform for service oriented software development Instant development without installing tools Instant deployment without installing middleware Instant running without knowing the underlying resources
10 Moving towards a cloud platform Online application development Browser-based IDE Business process centric development Online sharing of software services Transparent deployment and running Similar to Google AppEngine
11 Motivation Existing work The state of the art Conclusion Agenda
12 Existing R&D work on service oriented development Trustie project: SOARProLine (Service oriented software production line) SOARWare : SOARProLine+ Service resource management Design and development Runtime support
13 Architecture of SOARWare OW2 Meeting Online modeling and development SaaS-oriented Software Service Provisioning and Consuming Environment Service access Service provisioning Software modeling and development Business process modeling tool Service development tool Service choreography tool Service Oriented SPL Service deployment tool Service test & verification tool Other tools deploy Monitoring Service Container Service evolution mgmt. Service Bus Composite service engine Service running and evolution Service Reg./Discovery Service info. collecting Service Info. Mgmt. SOARBase Active service collecting Service mining
14 1. SOARBase: service management Service resources Atomic services Composite services (business process) Functionality Collecting Service mining Service recommendation Registration & search Mgmt of service attributes (QoS) Availability Response time Reputation
15 2. Service oriented software production line Business requirement Intermediate assets Business model Web service Execution model Composite service Software product Service Oriented SPL Developer
16 Service oriented SPL SPL config & management tool Configue software production process Mgmt. of software production process Assign and Mgmt. of production tasks Mgmt of intermediate assets Various software production tools BP modeling tool Service choreography Service encapsulation Test and verification OW2 Meeting
17 BPIDE-Business Process IDE Collaboration between multi-roles Domain experts App. analysts Service developers A suite of tools Modeling tool Service encapsulation Service choreography Verification tool Testing tools
18 3. Service running and evolution Service bus Message exchanging QoS-aware service scheduling Monitoring of composite service engines and service instances Service container Axis2 powered Easy service deployment Container management Composite service engine Distributed processing of BPMN service Dynamic service evolution
19 Service deployment Service Invocation Proxy SOARBus Runtime Sys. Mgmt. Processing Result Mgmt. BPMN Parser Evolution Mgmt. SOAREngine Task Pool Execution Processing Communication with SOARBus Deploy/Undeploy ServiceInfo Monitoring SOARHome Start/Stop Axis2 core Communication with SOARBus SOARBase
20 Applications of SOARWare Funded by 863 program Digital China Government tax service Wonders Information E-government applications
21 Motivation Existing work The state of the art Conclusion Agenda
22 Service Cloud Platform OW2 Meeting Online development SaaS ServiceXchange MyCloud AppStore AppEngine (PaaS) Trustworthiness AS API Service deployment SA org. and mgmt. CS API RM API Service composition Scheduling, running & monitoring Service Mgmt. IaaS Software Appliance: Service Container BPMNEngine App Server Infrastructure resources (compute, storage, network )
23 IaaS: software appliance provisioning Software appliance=vm/pm+ middleware Dynamic provisioning Manageability Functions Dynamic deployment/un-deployment of SAs Lifecycle management Monitoring Logging Agent SA Manager App Server BPMNEngine VM/PM Service Container
24 App Engine: hosting environment CS invocation CS deployment Lightweight service bus CS monitoring AS deployment Load balancing Kernel SA Manager AS invocation Software appliance management Data management
25 SaaS Online development Online App Access SaaS ServiceXchange MyCloud AppStore AppEngine (PaaS) Atomic Service API Composite ServiceAPI Runtime API API
26 ServiceXchange A production version of SOARBase Research work behind the scene Service crawling Service mining: clustering and conntectability Service recommendation Trustworthiness management Tagging Published at ICWS, WI, JOS, ATC
27 MyCloud Personalized development environment Service subscription App development tools Instant development tools: BPIDELite- a lightweight BPMN editor and service composition tool suite. Instant deployment interface Instant running-virtual runtime environment MyServiceContainer MyBPMNEngine Online monitoring tool
28 BPIDELite Flex-based development toolset BPMN-based business process modeling Service choreography Instant deployment
29 MyServiceContainer Virtual service container Service deployment/un-deployment WSDL file browsing Service invocation
30 MyBPMNEngine Virtual composite service execution engine BPMN compliant CS deployment BPMN model browsing Service invocation
31 Online monitoring Flex-based composite service monitoring Instance state Intermediate state (similar to debugging)
32 App Store Application management App publishing App categorizing App search
33 Motivation Existing work The state of the art Conclusion Agenda
34 Conclusion and future work Conclusion We aim at building a cloud platform for service oriented software development Instant service for developers Instant development Instant deployment Instant running Future work Richer online development tools Better multi-tenant support Load balancing Separation Dependability Dynamic resource provisioning: incorporate existing IaaS technologies
35 Appendix-iVIC OW2 Meeting
36 ivic The Internet-oriented Virtual Computing Infrastructure Towards resource virtualization Design Goals (**) Support resource allocation based on VM instances To provide another software encapsulate method Image creation, dissemination and optimization Container for VM Images: Load VM images dynamically To provide internet-scale resource allocation and adaption Wide-Area Network VM Migration vhaas: virtualized Hardware as a Service vsaas: Support the virtualized network application Software virtualization as a Service Linking virtual machine instances via virtual network overlays 36
37 1. vhaas design Assistant designing tools deploy monitor schedule Virtual running environment Integrated manage view install Physical resources Backend module 37
38 Motivation To support wide-area resource sharing, like department, organization, city, or anything bigger than an office underlying resource may not be in the same LAN (link, subnet) Current VM technology lacks in support of WAN Migration Network Problem: VM s IP address will be unavailable to other Internet host Storage Problem: Hosts must share a network storage, which is inefficient for WAN hosts Provide Service App Migration transparent to User 38
39 Similar problem with Mobile IP Mobile IP deals with actual physical device movement VM migration only involve with runtime-state movement Our solution: Hypervisor Controlled Mobile IP HyperMIP: Hypervisor Controlled Mobile IP Combine Proxy-mode mobile-ip stack with hosts VM Migration: VM does not need to install Mobile IP stack VMMs manage Network restoration for VM 39
40 Topology for Exp1: Network Performance Topology for Exp2: Network restoration time of migration Network restoration time of live migration Network Network performance Performance of VM1 No (HyperMIP) significant and VM2 overhead (non HyperMIP) for Web Server workload and File Server workload (<1%) Service down-time In Migration Average 3.1s across two LANs ~400ms Network overhead traffic than during migration live migration(w. in LAN HyperMIP) 2.7s 40
41 Problem To migrate VM, two host must share NAS Otherwise migration downtime is unacceptable NAS is infeasible among distributed resources NAS disk performance is limited by network bandwidth Solution: MigLoop, two level Vdisk(remote/local) Poor disk performance VM NAS Migrate VDisk VM Long migration downtime VM VDisk Migrate VM VDisk Better performance, less downtime VM VM Migrate Lvl2 Lvl2 VDisk VDisk Lvl1 VDisk HTTP/FTP/NFS 41
42 Virtual Disk Performance Migration Performance Disk Performance MigLoop vs Loop DBench overhead <2.1% Disk Performance In Migration MigLoop vs Loop overhead < ~6% 42
43 ivic Clients Presentation Streaming vspace Servers vprocess Servers Application Streaming vspace User Storage Subscribe, Pay per use vstore (Software Libs) 43
44 From you laptop By using browser with ivic Client Plugins. By plug a USB Flash Disk into any computer. From you mobile phone By install an ivic Mobile Client. 44
45 Summary of ivic ivic Platform Programmable virtual computing environment Low cost, high flexibility and reliability Virtualized Software as a Service Key technologies VM Migration over WAN P2P based ivic-vpn VM high availability Software streaming Applications Software lab Massive data processing (MapReduce) HPC - vcluster High scalability web hosting
46 Q&A OW2 Meeting
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