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David Lomet

  1. Implementing Performance Competitive Logical Recovery.

    Tue, 05/24/2011 - 15:01 — SomNambul
    Authors: David Lomet, Kostas Tzoumas, Michael Zwilling
    Subjects: Databases
    Abstract

    New hardware platforms, e.g. cloud, multi-core, etc., have led to a
    reconsideration of database system architecture. Our Deuteronomy project
    separates transactional functionality from data management functionality,
    enabling a flexible response to exploiting new platforms. This separation
    requires, however, that recovery is described logically. In this paper, we
    extend current recovery methods to work in this logical setting. While this is
    straightforward in principle, performance is an issue.

  2. Unbundling Transaction Services in the Cloud.

    Thu, 09/10/2009 - 10:12 — SomNambul
    Authors: David Lomet, Alan Fekete, Gerhard Weikum, Mike Zwilling
    Subjects: Databases
    Abstract

    The traditional architecture for a DBMS engine has the recovery, concurrency
    control and access method code tightly bound together in a storage engine for
    records. We propose a different approach, where the storage engine is factored
    into two layers (each of which might have multiple heterogeneous instances). A
    Transactional Component (TC) works at a logical level only: it knows about
    transactions and their "logical" concurrency control and undo/redo recovery,
    but it does not know about page layout, B-trees etc. A Data Component (DC)
    knows about the physical storage structure.

Math-arch

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