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2010

Schism: a Workload-Driven Approach to Database Replication and Partitioning

9 years 9 months ago
Schism: a Workload-Driven Approach to Database Replication and Partitioning
We present Schism, a novel workload-aware approach for database partitioning and replication designed to improve scalability of sharednothing distributed databases. Because distributed transactions are expensive in OLTP settings (a fact we demonstrate through a series of experiments), our partitioner attempts to minimize the number of distributed transactions, while producing balanced partitions. Schism consists of two phases: i) a workload-driven, graph-based replication/partitioning phase and ii) an explanation and validation phase. The first phase creates a graph with a node per tuple (or group of tuples) and edges between nodes accessed by the same transaction, and then uses a graph partitioner to split the graph into k balanced partitions that minimize the number of cross-partition transactions. The second phase exploits machine learning techniques to find a predicate-based explanation of the partitioning strategy (i.e., a set of range predicates that represent the same replicati...
Carlo Curino, Yang Zhang, Evan P. C. Jones, Samuel
Added 20 May 2011
Updated 20 May 2011
Type Journal
Year 2010
Where PVLDB
Authors Carlo Curino, Yang Zhang, Evan P. C. Jones, Samuel Madden
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