Data Migration Rate of CRUSH-Based Distributed Object Storage with Dynamic Topology
2020
Distributed systems are widely used to solve problems that require large computational or storage resources. The scalability of such systems makes them cheaper. However, the overhead for maintaining the system’s performance or operation ability may be significant. This paper considers a distributed P2P storage system in uncontrolled dynamic environment. The change of the structure or the topology in such system can lead to data migration that may consequently cause system overload. This paper examines the intensity and the amount of these migrations for different CRUSH-based data placement approaches.
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