Abstract:Mean response time and availability as optimization criteria for checkpoint placement are better replaced by workable formulas that calculate the ratio between the marginal gain accrued to users who experience system failure and the (presumably slight) loss suffered on average by all users.
OPTIMIZATION CRITERIA FOR CHECKPOINT PLACEMENT
C. M. KRISHNA, KANG G. SHIN, and YANN-HANG LEECheckpointing is becoming increasingly popular in real-time and database systems as a means of mitigating the consequences of fail… Show more
“…In line with earlier works [13,5,15,7,3] we assume that a failure is detected as soon as it occurs. We also assume that no failures occur during a failover [15,5,3].…”
“…Most results are obtained for settings where a longrunning job performing heavy calculations, is checkpointed from time-to-time [15,7,8,3,9]. Other models include request processing or message logging systems [5,13,10].…”
“…In line with earlier works [13,5,15,7,3] we assume that a failure is detected as soon as it occurs. We also assume that no failures occur during a failover [15,5,3].…”
“…Most results are obtained for settings where a longrunning job performing heavy calculations, is checkpointed from time-to-time [15,7,8,3,9]. Other models include request processing or message logging systems [5,13,10].…”
“…These algorithms need some a priori knowledge about the processing time. In [12], Krishna et al point out that the optimization criteria for checkpoint placement is to trade the benefits derived from checkpointing with the overhead imposed. Ziv and Bruck [24] present an online algorithm for placement of checkpoints.…”
Section: Related Workmentioning
confidence: 99%
“…Note that the checkpoint creation time C is a random variable; however, it is fixed for a given repair and rollback process [16]. Following similar steps in Lemma 1 we can obtain the Equation (11) and (12).…”
Section: Execution Time and Average Effectiveness With Checkpointingmentioning
The sections in this article are
Performance Measures
Task Assignment and Scheduling
Communication Algorithms
Fault Tolerance
Real‐Time Programming Languages
Discussion
Further Reading in Real‐Time Systems
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