Erasure codes in big data era

Data continues to explode exponentially in big data era, making the 3-replication scheme unaffordably expensive and space-consuming for a storage system. To this end, erasure code schemes prevail by offering the same or higher reliability at a relatively lower spatial cost. In this paper, an overview of up-to-date research work of erasure codes in big data era is presented. Additionally, we identify some problems of recent work and attempt to share our insights about possible future work of erasure codes.