Concept
Snapshot isolation
Related publications (57)
Oligolithic Cross-task Optimizations across Isolated Workloads.
Anastasia Ailamaki, Panagiotis Sioulas, Eleni Zapridou
Enterprises collect data in large volumes and leverage them to drive numerous concurrent decisions and business processes. Their teams deploy multiple applications that often operate concurrently on the same data and infrastructure but have widely differen ...
2024When is it safe to run a transactional workload under Read Committed?
The popular isolation level multiversion Read Committed (RC) exchanges some of the strong guarantees of serializability for increased transaction throughput. Nevertheless, transaction workloads can sometimes be executed under RC while still guaranteeing se ...
ASSOC COMPUTING MACHINERY2023Organocatalytic Enantioselective Pictet–Spengler Reaction of α‐Ketoesters: Development and Application to the Total Synthesis of (+)‐Alstratine A
Qian Wang, Jieping Zhu, Rémi Julien Sylvain Andres, Fenggang Sun
We report herein an asymmetric Pictet– Spengler reaction of α-ketoesters. In the presence of a catalytic amount of simple alanine-derived squaramide and p-nitrobenzoic acid, reaction of tryptamines with methyl 2-oxoalkanoates afforded the corresponding 1- ...
2023Concurrency control for database theorists
The aim of this paper is to serve as a lightweight introduction to concurrency control for database theorists through a uniform presentation of the work on robustness against Multiversion Read Committed and Snapshot Isolation. ...
ASSOC COMPUTING MACHINERY2022Deciding Robustness for Lower SQL Isolation Levels
While serializability always guarantees application correctness, lower isolation levels can be chosen to improve transaction throughput at the risk of introducing certain anomalies. A set of transactions is robust against a given isolation level if every p ...
ASSOC COMPUTING MACHINERY2022Robustness against Read Committed for Transaction Templates
The isolation level Multiversion Read Committed (RC), offered by many database systems, is known to trade consistency for increased transaction throughput. Sometimes, transaction workloads can be safely executed under RC obtaining the perfect isolation of ...
ASSOC COMPUTING MACHINERY2021Efficient Protocols for Enforcing Causal Consistency in Geo-Replicated Key-Value Data Stores
Modern large-scale data platforms manage colossal amount of data, generated by the ever-increasing number of concurrent users. Geo-replicated and sharded key-value data stores play a central role when building such platforms. As the strongest consistency m ...
EPFL2020Deciding Robustness for Lower SQL Isolation Levels
While serializability always guarantees application correctness, lower isolation levels can be chosen to improve transaction throughput at the risk of introducing certain anomalies. A set of transactions is robust against a given isolation level if every p ...
ASSOC COMPUTING MACHINERY2020Resolving bundle-specific intra-axonal T2 values within a voxel using diffusion-relaxation tract-based estimation
Jean-Philippe Thiran, Erick Jorge Canales Rodriguez, Alessandro Daducci, Cristina Granziera, Muhamed Barakovic
At the typical spatial resolution of MRI in the human brain, approximately 60–90% of voxels contain multiple fiber populations. Quantifying microstructural properties of distinct fiber populations within a voxel is therefore challenging but necessary. Whil ...
2020Bentonite clay barriers in nuclear waste repositories
Lyesse Laloui, Alessio Ferrari, Jose Antonio Bosch Llufriu
Deep disposal of high-level radioactive waste is the preferred solution worldwide for the long-term disposal of nuclear waste. This concept involves a series of geological and engineered barriers that provide isolation of the waste from the biosphere. Most ...
EDP SCIENCES2020