ITR: Collaborative Research: (ASE+NHS) - (int): BFT-LS: Byzantine Fault Tolerance for Large-Scale, High-Performance Distributed Storage Systems

ITR：协作研究：(ASE NHS) - (int)：BFT-LS：大规模、高性能分布式存储系统的拜占庭容错

• 批准号: 0427408
• 负责人: Liuba Shrira
• 金额: $ 27.36万
• 依托单位: Brandeis University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2011-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0427408&HistoricalAwards=false
• 关键词: ITR; Collaborative; Research; ASE+NHS; int

Title: ITR: COLLABORATIVE RESEARCH - (ASE+NHS) - (int): BFT-LS: Byzantine Fault Tolerance for Large-Scale, High-Performance Distributed Storage SystemsReliance on information available over the Internet is increasing every day. At the same time, the number of malicious attacks is growing. Nevertheless, it is critical that online information be stored reliably: information must not be lost, must be accessible when needed, and what a user sees must be what is actually stored. These requirements must be satisfied in spite of malicious attacks on the network or the storage nodes. This project concerns research on a new storage system, BFT-LS (Byzantine Fault Tolerance - Large Scale), that satisfies these requirements. BFT-LS is designed to support five main goals: (1) Reliability. BFT-LS provides extremely reliable storage: stored objects are not lost, are available when needed, and are uncorrupted, in spite of malicious attacks and Byzantine failures in which a node behaves arbitrarily badly. (2) Automatic Reconfiguration. BFT-LS is a dynamic system that reconfigures itself automatically, thus enhancing reliability by reducing reliance on operators. BFT-LS also allows nodes to be added to replace failed nodes and to improve service under increasing load. (3) Application Independence. BFT-LS provides a flexible interface that meets the needs of many applications, including file systems and databases. (4) Extended Semantics. BFT-LS supports atomic transactions that can read and write many objects. In addition, read-only transactions can run in the recent past yet are guaranteed to see a consistent state. (5) Efficient access at large scale. BFT-LS is intended to run efficiently at very large scale: it must store a vast quantity of state that is accessed by huge numbers of users who are physically located all over the world. It provides an infrastructure that allows clients to us data cached nearby, rather than communicating with far-away storage nodes. Nearby nodes aren't trusted, however; instead a new reliable stream mechanism ensures data validity.BFT-LS is expected to provide greater functionality than earlier work while also providing outstanding performance. Its extended functionality not only requires innovative new solutions in many areas, but also makes the system more generally useful because it can support a wide range of applications.

标题：ITR：协作研究 - （ASE+NHS） - （INT）：BFT-LS：拜占庭式容忍度，用于大规模，高性能的分布式存储系统对互联网上可用信息的分布式存储系统每天都在增加。同时，恶意攻击的数量正在增加。 然而，至关重要的是，在线信息可靠地存储：不得丢失信息，在需要时必须访问，并且用户看到的必须是实际存储的内容。 尽管对网络或存储节点有恶意攻击，必须满足这些要求。 该项目涉及满足这些要求的新存储系统BFT -LS（拜占庭式容错 - 大规模）的研究。 BFT-LS旨在支持五个主要目标：（1）可靠性。 BFT-LS提供了极其可靠的存储：尽管恶意攻击和拜占庭式失败，但在需要的情况下，存储的对象不会丢失，在需要时可用并且没有腐败。 （2）自动重新配置。 BFT-LS是一个动态系统，可以自动重新配置自己，从而通过降低对操作员的依赖来增强可靠性。 BFT-LS还允许添加节点以替换失败的节点并在增加负载下改善服务。 （3）申请独立性。 BFT-LS提供了一个灵活的接口，可满足许多应用程序的需求，包括文件系统和数据库。 （4）扩展语义。 BFT-LS支持可以读写许多对象的原子交易。 此外，最近的交易可以在最近的过去进行，但可以保证看到一致的状态。 （5）大规模有效访问。 BFT-LS旨在在非常大规模的情况下有效地运行：它必须存储大量的状态，这些状态由大量物理地位于世界各地的用户访问。它提供了一个基础架构，该基础架构使客户可以在附近缓存的数据，而不是与遥远的存储节点进行通信。 但是，附近的节点不信任。取而代之的是，一种新的可靠流机制可确保数据有效性。BFT-LS预计比早期的工作提供更大的功能，同时还提供出色的性能。 它的扩展功能不仅需要许多领域的创新新解决方案，而且还可以使系统更有用，因为它可以支持广泛的应用程序。