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Proceedings. 20th International Conference on Data Engineering (2004)
Boston, Massachusetts
Mar. 30, 2004 to Apr. 2, 2004
ISSN: 1063-6382
ISBN: 0-7695-2065-0
pp: 486
Roger Barga , Microsoft Research, Redmond, WA
Shimin Chen , Carnegie Mellon University, Pittsburgh, PA
David Lomet , Microsoft Research, Redmond, WA
ABSTRACT
Phoenix/App supports software components whose states are made persistent across a system crash via redo recovery, replaying logged interactions. Our initial prototype force logged all request/reply events resulting from inter-component method calls and returns. This paper describes an enhanced prototype that implements: (i) log optimizations to improve normal execution performance; and (ii) checkpointing to improve recovery performance. Logging is reduced in two ways: (1) we only log information required to remove non-determinism, and we only force the log when an event "commits" the state of the component to other parts of the system; (2) we introduce new component types that provide our enhanced system with more information, enabling further reduction in logging. To improve recovery performance, we save the values of the fields of a component to the log in an application "checkpoint". We describe the system elements that we exploit for these optimizations, and characterize the performance gains that result.
INDEX TERMS
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CITATION

S. Chen, D. Lomet and R. Barga, "Improving Logging and Recovery Performance in Phoenix/App," Proceedings. 20th International Conference on Data Engineering(ICDE), Boston, Massachusetts, 2004, pp. 486.
doi:10.1109/ICDE.2004.1320021
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