EAGER: XSight - A Distributed Measurement Infrastructure for Data Transfer Nodes

随着研究数据量的增加，随着研究工作流程变得更加动态和复杂，以及网络功能的扩展，有效仪器的好处也在增长。 该项目追求在这个新的景观有效的网络仪器的探索。 虽然在研究网络基础设施的背景下进行，该主题是相关的其他cyberinfrastructures.Specifically，XSight项目探讨如何有效地利用新的内核修改，使TCP仪器安装在数据传输节点（DTNs）：收集流级TCP连接性能数据;相关的DTNs之间的性能数据？参与大规模数据传输;并与网络运营中心（NOC）通信，以通知网络性能问题的存在。XSight通过其接近真实的时间流级别的数据收集、分析和报告真实的科学数据流TCP性能的方法，导致对科学数据流端到端网络行为的更深入理解。此外，该系统有可能直接导致仪器化科学数据流的改进。该项目的目标是在NSF支持的XSEDE环境中的分布式DTN环境，并在DTN上部署了一个轻量级的数据收集客户端。

As the volume of research data increases, as research workflows become more dynamic and complex, and as networking capabilities expand, the benefits of effective instrumentation grow. This project pursues the exploration of effective networking instrumentation in this new landscape. While pursued in the context of research cyberinfrastructure, the topic is relevant to other cyberinfrastructure.Specifically, the XSight project explores how to effectively leverage new kernel modifications enabling TCP instrumentation installed at Data Transfer Nodes (DTNs) to: collect flow level TCP connection performance data; correlate this performance data among DTN?s participating in large scale data transfers; and communicate with a Network Operations Center (NOC) to signal the presence of network performance problems. XSight, through its approach to near real time flow level data collection, analysis and reporting on real scientific data flow TCP performance, leads to a deeper understanding of end to end network behavior of scientific data flows. Further, the system has potential to directly lead to improvements of instrumented scientific data flows. The project targets the distributed DTN environment within the NSF-supported XSEDE environment with a light-weight data collection client deployed on the DTNs.