Increasing performance in Data grid by a new replica replacement algorithm

Journal of Advances in Computer Research

مقاله 4، دوره 11، شماره 2 - شماره پیاپی 40، مرداد 2020، صفحه 45-58   

نوع مقاله: Original Manuscript

نویسندگان

Mahsa Beigrezaei¹؛ Abolfazl Toroghi Haghighat^{* 1}؛ Seyedeh Leili Mirtaheri²؛ Narges Hajizadeh Bastani¹

¹Department of Computer and Engineering, Yadegar -e- Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University, Shahr-e-Rey, Iran

²Computer Engineering Department, Kharazmi University, Tehran, Iran

چکیده

Data Grid provides sharing services for very large data around the world. Data replication is one of the most effective approaches to reduce access latency and response time. In addition to the benefits, replication has costs such as storage and bandwidth consumption, especially when storage space is low and limited. Therefore,  the data replacement should be done wisely. In this paper, we proposed a replacement method called FRA. The algorithm defines a weight for each replica that represents its value. This algorithm uses this weight to prevent the removal of valuable replicas. The results demonstrated that FRA algorithm has better performance than other replication methods in terms of the number of replications, the percentage of storage used, and the job execution time.

کلیدواژه‌ها

Data Grid؛ Data Replication؛ replica replacement