A replication strategy for a distributed high-speed caching system based on spatiotemporal access patterns of geospatial data
A replication strategy for a distributed high-speed caching system based on spatiotemporal access patterns of geospatial data
复制标题
基于地理空间数据时空访问模式的分布式高速缓存系统复制策略
DOI：
10.1016/j.compenvurbsys.2014.02.009
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Qunying Huang
中科院分区：
文献类型：
--
作者：
Rui Li;Wei Feng;Huayi Wu;Qunying Huang
Distributed high-speed caching uses replication strategies to improve the parallel service efficiency in data-intensive services in cloud-based environments. This paper proposes a replication strategy based on the access pattern of tile in order to optimize load balancing for large-scale user access in cloud-based WebGISs. First, this strategy considers the access bias and repeatability involved in tile access, to cache tiles with higher popularities, and obtains a higher cache hit rate under limited distributed caches. Second, on the basis of the uneven distribution and temporal local changes of tile access, it generates hot tile replicas with a seat allocation scheme to efficiently allocate the distributed cache. Finally, it balances the load for tile access requests based on the spatial correlation and spatial locality in tile access patterns to achieve fast data extraction. Experimental results indicate that the proposed strategy can be adopted to handle numerous WebGISs tile requests in a cloud-based environment.
登录
查看更多内容
影响因子：
1.9
作者：
Jonathan W. Still
通讯作者：
Jonathan W. Still
影响因子：
7.1
作者：
D. Unwin
通讯作者：
D. Unwin
基于访问密度的异构集群系统中网络GIS的负载平衡方法
DOI：
10.1016/j.future.2012.08.005
发表时间：
2013-02
期刊：
Future Generation Computer Systems
影响因子：
--
作者：
Li, Rui;Zhang, Yinfeng;Xu, Zhengquan;Wu, Huayi
通讯作者：
Wu, Huayi
DOI：
--
发表时间：
2007-05
期刊：
--
影响因子：
--
作者：
Danyel Fisher
通讯作者：
Danyel Fisher
DOI：
10.1109/iccd.1996.563554
发表时间：
1996-10
期刊：
Proceedings International Conference on Computer Design. VLSI in Computers and Processors
影响因子：
--
作者：
D. Serpanos;L. Georgiadis;T. Bouloutas
通讯作者：
D. Serpanos;L. Georgiadis;T. Bouloutas