tailieunhanh - EVENT REPORT CHI - CHI, TAIEAN EARTHQUAKE

Request tracing. Our view of system logs as providing a control-flow perspective of system execution, when cou- pled with log messages which have unique identifiers for the relevant request or processing task, allows us to ex- tract request-flow views of the system. Much work has been done to extract request-flow views of systems, and these request flow views have then been used to diagnose and debug performance problems in distributed systems [2] [1]. However, [2] used instrumentation in the applica- tion andmiddleware to track requests and explicitlymon- itor the states that the system goes through, while [1] ex- tracted causal flows from messages in a distributed sys- tem using J2EE instrumentation developed. | TM Event Report RMS Chi-Chi Taiwan Earthquake Chi-Chi Reconnaissance Team Weimin Dong . RMS Team Leader Earthquake Engineer Guy Morrow . RMS Structural Engineer Akio Tanaka OYO RMS Geophysicist Hideo Kagawa Engineering Risk Services Structural Engineer Lun-Chang Chou . National Science and Technology Program for Hazards Mitigation National Taiwan University Yi-Ben Tsai . National Central University Professor Wenko Hsu Institute for Information Industry Engineer Special Systems Division Laurie Johnson AICP RMS Event Response Coordinator Urban Planner Craig Van Anne . OYO RMS Fire Protection Engineer Shukyo Segawa OYO Corporation Geophysicist Chin-Hsun Yeh . National Center for Research in Earthquake Engineering Associate Research Fellow Kuo-Liang Wen . National Science and Technology Program for Hazards Mitigation National Taiwan University Wei-ling Chiang . National Central University Professor The reconnaissance team members arrived in Taiwan on Wednesday September 23 two days after the earthquake and initially spent 20 man-days in the field. OYO RMS OYO and ERS reconnaissance team members jointly presented preliminary findings at a seminar in Tokyo on October 11. RMS joined Pacific Gas Electric PG E and members of the Technical Council on Lifeline Earthquake Engineering TCLEE on October 10 in a week-long mission to further investigate power disruption and associated business interruption impacts and collect additional loss data. Many of the team members particularly our Taiwanese colleagues have continued investigations of this earthquake. Acknowledgments The reconnaissance team gratefully acknowledges the following individuals organizations and sources for their contributions Dr. Chin-Hsing Loh Director of the National Center for Research in Earthquake Engineering and his staff who generously assisted with field reconnaissance arrangements and logistical support in the early days of the disaster. Taiwan Power Corporation .