Modular Checkpointing for Atomicity

9 years 11 months ago
Modular Checkpointing for Atomicity
Transient faults that arise in large-scale software systems can often be repaired by re-executing the code in which they occur. Ascribing a meaningful semantics for safe re-execution in multi-threaded code is not obvious, however. For a thread to correctly re-execute a region of code, it must ensure that all other threads which have witnessed its unwanted effects within that region are also reverted to a meaningful earlier state. If not done properly, data inconsistencies and other undesirable behavior may result. However, automatically determining what constitutes a consistent global checkpoint is not straightforward since thread interactions are a dynamic property of the program. In this paper, we present a safe and efficient checkpointing mechanism for Concurrent ML (CML) that can be used to recover nsient faults. We introduce a new linguistic abstraction called stabilizers that permits the specification of per-thread monitors and the restoration of globally consistent checkpoint...
Lukasz Ziarek, Philip Schatz, Suresh Jagannathan
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2007
Authors Lukasz Ziarek, Philip Schatz, Suresh Jagannathan
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