نتایج جستجو برای: replica placement
تعداد نتایج: 81455 فیلتر نتایج به سال:
In this paper, we address three issues concerning data replica placement in hierarchical Data Grids that can be presented as tree structures. The first is how to ensure load balance among replicas. To achieve this, we propose a placement algorithm that finds the optimal locations for replicas so that theirworkload is balanced. The second issue is how to minimize the number of replicas. To solve...
One of the key issues with large distributed systems, such as IoT platforms, is gaining timely access to data objects. As a result, decreasing operation time reading and writing in communication systems become essential demands for asymmetric system. A common method replicate objects across multiple servers. Replica placement, which can be performed statically or dynamically, critical effective...
Data grid enables the sharing and coordinated use of data from various resources and provides various services to fit the needs of high-performance distributed and data-intensive computing. However, access efficiency, availability, and security are among the most important challenges to be addressed. In this research, we use data partitioning schemes (secret sharing and erasure coding combines ...
Applications are increasingly being deployed in the cloud due to benefits stemming from economy of scale, scalability, flexibility and utility-based pricing model. Although most cloud-based applications have hitherto been enterprise-style, there is an emerging need for hosting real-time streaming applications in the cloud that demand both high availability and low latency. Contemporary cloud co...
Mirroring-based reliability as compared to parity-based reliability signi cantly simpli es the design and the implementation of video servers, since in case of failure mirroring does not require any synchronization of reads or decoding to reconstruct the lost video data. While mirroring doubles the amount of storage volume required, the steep decrease of the cost of magnetic disk storage makes ...
Data Grids are today’s emerging infrastructure providing specialized services on handling large datasets that needs to be transferred and replicated among different grid sites. Data replication is an important technique for data availability and fast access. In this paper we present a comparison of various replication models and techniques employed by some major topologies used in data grid env...
A big challenge to the grid computing is the communication on the network. The proper placement for replicas on multiple nodes in P2P or grid environment is an effective way to decrease network cost and improve communication efficiency. The unstable peers, networks, and fluctuant user access mode in the distributed environment make replica placement optimization difficult. We construct a networ...
The recent introduction of Content Distribution Networks (CDNs) enhances the delivery of high quality multimedia content to end users. In a CDN architecture, the content is replicated to so-called surrogate servers, generally at the edge of the transport network, to improve the quality of service (QoS) of streaming multimedia delivery services. By using peer-to-peer (P2P) technologies, these ed...
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