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Performance Isolation in Enterprise Systems Mohamed Mansour Karsten Schwan Sameh Abdel Aziz, James Miller, Moni Panchavadi, Jegannathan Mehalingham Outline • Current Industrial Collaborations – Worldspan, L.P. – Delta Technology, Inc. • References • Q&A Worldspan Collaboration • Research – Effects of message sequences on “clean” server – Root cause can lie outside application or user level code – Performance isolation techniques • Collaborations – Simulation studies using Worldspan traces – On-site experiments using ePricing engine • Publications – 1 conference paper (ICSOC 06) – 2 CERCS technical reports – 1 journal paper (almost ready for submission) Delta Technology Collaboration • Collaborations – Access to users and system administrators – System architecture, traffic traces, and measurements from production systems – Limited access to SI systems • Publications – 1 conference paper (under review) Delta Revenue Pipeline Flights mirroring Database Mirror Sales Laptops Production Database Passengers Ad-hoc Queries Baggage ETL Servers Data warehouse Workstations OLTP Access OLAP Access Delta Technology Collaboration • Challenge – Ad-hoc access to up-to-date state – Impact on transactional systems • Proposed Ideas – Automated query routing – Smart scheduling of ETL jobs – Coordinating query source selection with database mirroring References • • • "I-Queue: Smart Queues for Service Management" Mohamed Mansour, Karsten Schwan, Sameh Abdel Aziz ICSOC 2006 "Isolation Points: Creating Performance-Robust Enterprise Systems" Mohamed Mansour, Karsten Schwan Pending Journal Submission "Policies for Enterprise Information Systems: Two Case Studies" V. Kumar, M. Mansour, B. Martin, J. Mehalingham, and K. Schwan Under Review • http://www.cc.gatech.edu/~mansour • [email protected] Q&A