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2009

Unbundling Transaction Services in the Cloud

9 years 5 days ago
Unbundling Transaction Services in the Cloud
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. It supports a record oriented interface that provides atomic operations, but it does not know about transactions. Providing atomic record operations may itself involve DC-local concurrency control and recovery, which can be implemented using system transactions. The interaction of the mechanisms in TC and DC leads to multi-level redo (unlike the repeat history paradigm for redo in integrated engines). This refacto...
David B. Lomet, Alan Fekete, Gerhard Weikum, Micha
Added 08 Nov 2010
Updated 08 Nov 2010
Type Conference
Year 2009
Where CIDR
Authors David B. Lomet, Alan Fekete, Gerhard Weikum, Michael J. Zwilling
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