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Reducing Server and Network Load with Shared Buffering

Reducing Server and Network Load with Shared Buffering. Somaya Arianfar , Pasi Sarolahti , Jörg Ott Aalto University 10.12.2012 CSWS’12, Nice, France. Outline. Background and problem statement Goals Design Byte stream buffering Store-me bits Load Control Architecture

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Reducing Server and Network Load with Shared Buffering

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  1. Reducing Server and Network Load with Shared Buffering Somaya Arianfar, PasiSarolahti, JörgOtt Aalto University 10.12.2012 CSWS’12, Nice, France

  2. Outline • Background and problem statement • Goals • Design • Byte stream buffering • Store-me bits • Load Control Architecture • Receiver-based Transport Protocol • Summary

  3. Background Client 1 Proxy Server Server Client 2 Bottleneck Client 3 Client 4

  4. Background CDN Client 1 Client 2 Server Client 3 Client 4

  5. Problem Statement • Sudden traffic spikes • Application specific solutions • No CDN agreements => server goes down • E.g. links from Dig and Twitter • Proxy’s violation from end-to-end argument • E.g. Security issues

  6. Main goals • Application independence • Object size independence • Segmentation and network independence

  7. Design: Byte Stream Buffering

  8. Design: Store-me bits and load control Policer Client 1 Buffering node Server

  9. Design: Receiver-based Transport Protocol • Stream label • 20-bytes unique Id • Sequence Number • 64-bits offset • Checksum • Cumulative from the beginning of the stream

  10. Application Interface Client 1 Server

  11. Initial Evaluations

  12. Summary • Storage sharing in the network • Application independent stream buffering • Load controlled architecture • Pull-based transport protocol

  13. Questions? Thanks!

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