Dynamic Replica Management based on SVR in IPFS
Dynamic Replica Management based on SVR in IPFS
复制标题
IPFS中基于SVR的动态副本管理
DOI：
10.1109/iske47853.2019.9170274
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Lijun Chen
中科院分区：
文献类型：
--
作者：
D. Huang;Lijun Chen
星际文件系统（IPFS）是新一代的P2P存储系统，具有去中心化、基于内容寻址和防篡改等特点。但IPFS采用的是静态副本策略，没有考虑文件热度，导致服务质量低、访问延迟高、存储利用率低。针对上述问题，提出了一种基于支持向量回归（SVR）的IPFS动态副本管理策略。它可以主动预测未来的文件热度，并及时更改文件的冗余策略和副本数量。实验表明，本文提出的动态副本管理策略具有较好的预测效果，能有效降低文件访问延迟。
The Interplanetary File System(IPFS) is a new generation of P2P storage systems with the feature of decentralization, content-based addressing and tamper-proof. However, the static replica policy is used in IPFS, which does not take into account the file heat, resulting in low quality of service, high access latency and low storage utilization. Focused on above problems, an IPFS dynamic replica management strategy based on Support Vector Regression (SVR) is proposed. It can proactively predict future file heat and change the file’s redundancy strategy and number of replicas in time. Experiments show that the dynamic replica management strategy proposed in this paper has a good prediction effect and can effectively reduce file access latency.