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Skype has been a typical choice for providing VoIP service nowadays and is well-known for its broad range of features, including voice-calls, instant messaging, file transfer and video conferencing, etc. Considering its wide application, from the viewpoint of ISPs, it is essential to identify Skype flows and thus optimize network performance and forecast(More)
As application requirements increase in quantity and popularity, big data storage is becoming an important technology which data centers and Internet companies depend on. The cluster file system with centralized metadata management often encounters planned or unplanned downtime which requires higher reliability for metadata service. Current paradigms use(More)
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