Results 21 to 30 of about 7,260 (279)
Optimistic Concurrency Control for multihop sensor networks [PDF]
2011 7th International Wireless Communications and Mobile Computing Conference, 2011 In this study, we provide a lightweight singlehop primitive, Read-All-Write-Self (RAWS), that achieves optimistic concurrency control. RAWS guarantees serializability, which simplifies implementation and verification of distributed algorithms, compared to the low level message passing model. We also present a self-stabilizing multihop extension of RAWS,
Onur Soysal +2 more
openaire +1 more source
An Object-Based Approach to Implementing Distributed Concurrency Control [PDF]
, 1990 We have added distributed concurrency control to the MELD object system by representing in progress transactions as simulated objects. Transaction objects exploit MELD‘s normal message passing facilities to support the concurrency control mechanism.
Kaiser, Gail E. +2 more
core +2 more sources
Serializable Snapshot Isolation in PostgreSQL [PDF]
, 2012 This paper describes our experience implementing PostgreSQL's new serializable isolation level. It is based on the recently-developed Serializable Snapshot Isolation (SSI) technique.
Grittner, Kevin, Ports, Dan R. K.
core +2 more sources
Improving DBMS performance through diverse redundancy [PDF]
, 2006 Database replication is widely used to improve both fault tolerance and DBMS performance. Non-diverse database replication has a significant limitation - it is effective against crash failures only.
Popov, P. T., Stankovic, V.
core +1 more source
Proceedings of the 2016 International Conference on Management of Data, 2016 Concurrency control for on-line transaction processing (OLTP) database management systems (DBMSs) is a nasty game. Achieving higher performance on emerging many-core systems is difficult. Previous research has shown that timestamp management is the key scalability bottleneck in concurrency control algorithms.
Yu, Xiangyao +3 more
openaire +3 more sources
Logical Concurrency Control from Sequential Proofs [PDF]
, 2010 We are interested in identifying and enforcing the isolation requirements of a concurrent program, i.e., concurrency control that ensures that the program meets its specification.
Deshmukh, Jyotirmoy +3 more
core +4 more sources
Brief Announcement: On the Correctness of Transaction Processing with External Dependency [PDF]
, 2019 We briefly introduce a unified model to characterize correctness levels stronger (or equal to) serializability in the presence of application invariant.
Hassan, Ahmed +2 more
core +1 more source
Comparing two-phase locking and optimistic concurrency control protocols in multiprocessor real-time databases [PDF]
, 1997 Previous studies (Haritsa et al., 1990) have shown that optimistic concurrency control (OCC) generally performs better than lock-based protocols in disk-based real-time database systems (RTDBS).
Chiu, A, Kao, CM, Lam, KY
core +1 more source
Intelligent Transaction Scheduling to Enhance Concurrency in High-Contention Workloads
Applied SciencesConcurrency control (CC) scheme based on transaction decomposition has significantly enhanced the concurrency performance of multicore in-memory databases, surpassing traditional CC schemes such as two-phase locking (2PL) or optimistic concurrency ...
Shuhan Chen, Congqi Shen, Chunming Wu
doaj +1 more source
Detection of Phantom Reads in Hyperledger Fabric
IEEE AccessIn concurrent transactional systems, a phantom read occurs when a transaction retrieves a set of data, and simultaneously, new data is inserted, updated, or removed from that set by one or more other transactions, leading to unexpected data being read ...
Luca Olivieri +5 more
doaj +1 more source