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Fast Non-Blocking Atomic Commit: An Inherent Trade-off

This paper investigates the time-complexity of the non-blocking atomic commit (NBAC) problem in a synchronous distributed model where t out of n processes may fail by crashing. We exhibit for t > 3 an inherent trade-off between the fast abort property of NBAC, i.e., aborting a transaction as soon as possible if some process votes ``no,'' and the fast commit property, i.e., committing a transaction as soon as possible when all processes vote ``yes'' and no process crashes. We also give two algorithms: the first features fast commit and weak fast abort, whereas the second features fast abort and weak fast commit.

Keywords: Algorithms ; distributed algorithms ; complexity ; atomic commit

Reference

  • LPD-REPORT-2004-007

Record created on 2005-07-13, modified on 2012-03-21