Replica location mechanism in data grid based on ED-Chord
Shaoyu Chen · Journal of Tsinghua University(Science and Technology) · 2007
A replica location mechanism was developed for data grids to provide better load balancing capability and scalability.The system evenly distributes the chord structure for equitably assigning node identifiers.A peer-to-peer hierarchical replica location mechanism(PRLM) was also designed.The system collects the location information of nodes using a distributed method and assigns optimal identifiers for new node to make the node distribution more uniform.Global indexes of the PRLM are organized based on the chord structure.Localization of the virtual organization can optimize queries on local indexes.Theoretical analysis and simulations show that PRLM provides good performance,good scalability and load balancing capability for replica locations in data grids.