Designing next generation data-centers with advanced communication protocols and systems services
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
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It has been well acknowledged in the research community that in order to design a data-center environment which is efficient and offers high performance, one of the critical issues that needs to be addressed is the effective reuse of cache content stored away from the origin server. However, for caching dynamically changing content (e.g., content involved in online banking, Internet auctions, etc.). consistency and coherency issues need to be addressed. In addition, most current real world requests have multiple dynamic dependencies, i.e., these requests might depend on multiple data objects. Further, these requests are not entirely independent; several requests might have common dependencies. While there have been previous research solutions on maintaining coherent caches for dynamic content, these solutions have several shortcomings including inability to adapt to server load or handle multiple dynamic dependencies. In this paper, we propose a load resilient architecture using one sided operations supported by several high performance interconnects such as InfiniBand, while maintaining multiple dynamic dependencies per response. Our experimental results show that our schemes to tackle the multi-dependency issue efficiently and significantly outperform the existing approaches. Further, our results demonstrate that the proposed load resilient architecture can possibly improve the performance of loaded data-centers by over an order of magnitude.