微软演示稿经典剪辑图例-3.ppt

Stateful vs. Stateless Keep duration of session state to a minimum Keep state in resource managers Partitioning services Read-only data services Can be replicated Can be indexed Lazy updates are fine Read-write data services Cache-coherency Partition if you can Isolation Independent failure Control your own processing Maximizes throughput Allows temporal decoupling Service Archetypes Validation Choosing where to validate Autonomous Trusted sub-system Operations services trust Process service Guiding Principles MOM 2005 Architecture Transaction Manager State Transformation Is The Whole Purpose Of Most Applications Stateless Doesnt Really Exist Stateless is a static concept Everything is stateful when it runs Upgrade Architecture Presentation Service ASP.NET Web Service ASMX Enterprise Service Enterprise Service Enterprise Service Enterprise Service Enterprise Service Presentation Service ASP.NET Web Service ASMX Enterprise Service Queue Infrastructure Process Operation Data Productive Integrated Extensible Capable Short learning curve Minimal administrative overhead Tools integrated tightly Automates common tasks Customizable for your process Integrates with 3rd party tools Remotely accessible Robust, secure, scalable Management Server MOM Database MOM Data Warehouse Reporting Console Operations Console Admin Console MOM Agent MOM 2005 Management Group Tina SQL Systems Engineer Finance Team M, W, F 8am – 2pm Mark SQL Systems Engineer Sales Team T, Th 2pm – 8pm Robin Infra Systems Engineer Central IT Team M, F 10am – 4pm SQL Core Finance Application Windows Server 2003 SQL Core Sales Application Windows Server 2003 Web Application Web Application X X X X Steve SQL Systems Engineer Finance Team T, Th 8pm – 2am Finance Department SQL Failure Wed 11:53am Sales Department SQL Failure Thurs 10:02pm SQL Failure Thurs 5:05pm Windows failure Mon 11pm Windows Failure Fri, 3:30pm Notification Workflow Scenario Log Savings Checking Withdraw Deposit Begin Tx Transfer Comm