Sciweavers

Share
DSN
2007
IEEE

Measuring Availability in Optimistic Partition-Tolerant Systems with Data Constraints

9 years 24 days ago
Measuring Availability in Optimistic Partition-Tolerant Systems with Data Constraints
Replicated systems that run over partitionable environments, can exhibit increased availability if isolated partitions are allowed to optimistically continue their execution independently. This availability gain is traded against consistency, since several replicas of the same objects could be updated separately. Once partitioning terminates, divergences in the replicated state needs to be reconciled. One way to reconcile the state consists of letting the application manually solve inconsistencies. However, there are several situations where automatic reconciliation of the replicated state is meaningful. We have implemented replication and automatic reconciliation protocols that can be used as building blocks in a partition-tolerant middleware. The novelty of the protocols is the continuous service of the application even during the reconciliation process. A prototype system is experimentally evaluated to illustrate the increased availability despite network partitions.
Mikael Asplund, Simin Nadjm-Tehrani, Stefan Beyer,
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where DSN
Authors Mikael Asplund, Simin Nadjm-Tehrani, Stefan Beyer, Pablo Galdámez
Comments (0)
books