Articoli correlati a Replication of Metadata in Distributed Storage Systems:...

Replication of Metadata in Distributed Storage Systems: Asynchronous Replication Across Multi-Master Servers - Brossura

Akturk, Ismail

 
9783846593349: Replication of Metadata in Distributed Storage Systems: Asynchronous Replication Across Multi-Master Servers

Sinossi

In this study, we examine various metadata server layouts for distributed data storage systems in terms of high availability, scalability and performance. A central metadata server is a single point of failure leading to low availability. Ensuring high availability requires replication of metadata servers. Synchronously replicated metadata servers layout introduces synchronization overhead which degrades the performance of data operations. We propose an asynchronously replicated multi-master metadata servers layout which ensures high availability, scalability and provides better performance. We discuss the implications of asynchronously replicated multi-master metadata servers on metadata consistency and conflict resolution. Furthermore, we introduce an asynchronous multi-master replication tool that is deployed in the state-wide distributed data storage system called PetaShare, and compare performance of all three metadata server layouts: central metadata server, synchronously replicated multi-master metadata servers and asynchronously replicated multi-master meta- data servers.

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L'autore

Ismail Akturk is a graduate student in the Department of Computer Engineering at Bilkent University. Before joining Bilkent, he was a research assistant in Center for Computation and Technology at Louisiana State University. He got his M.S. degree in Electrical and Computer Engineering at LSU in 2009, and B.S degree from Dogus University in 2007.

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