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Dynamic Replica Management based on SVR in IPFS

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.