Results 41 to 50 of about 537 (133)

Stall‐Free Asynchronous State Repartitioning With a Proactive Workload Tracking Window

Concurrency and Computation: Practice and Experience, Volume 38, Issue 3, February 2026.
ABSTRACT High‐throughput stateful applications rely on dynamic data repartitioning to adapt to changing workloads, but this process presents significant challenges. This paper provides a detailed analysis of such challenges, drilling down into the tradeoffs between adaptation, computational overhead, and service availability. We identify that a primary
Douglas Pereira Luiz, Odorico Machado Mendizabal   +1 more
wiley   +1 more source

SSD-SMR Write Cache Strategy for Optimizing Long-Tail Latency Based on Q-Learning [PDF]

Jisuanji gongcheng
With the continuous increase in the scale of global data, the effective and inexpensive improvement of data access performance is an important challenge faced by storage systems.
LIU Jian, ZHANG Buhao, FANG Kuangchi, LIU Xuanfeng, SUN Guodao, LIANG Ronghua, LIANG Haoran
doaj   +1 more source

Fairly Decentralizing a Hybrid Concurrency Control Protocol for Real‐Time Database Systems

Concurrency and Computation: Practice and Experience, Volume 37, Issue 4-5, 28 February 2025.
ABSTRACT Concurrency control protocols play a vital role in ensuring the correctness of databases when transactions are processed in parallel. Plor is a non‐real‐time concurrency control protocol based on the 2‐phase locking protocol. Plor utilizes the Wound‐Wait scheme, a timestamp‐based scheme for deadlock prevention, as it provides lower tail ...
Tung Nguyen, Hideyuki Kawashima
wiley   +1 more source

Performance Benchmarking of Key-value Store NoSQL Databases [PDF]

, 2018
Increasing requirements for scalability and elasticity of data storage for web applications has made Not Structured Query Language NoSQL databases more invaluable to web developers. One of such NoSQL Database solutions is Redis.
John, Samuel, Osemwegie, Omoruyi, Okokpujie, Kennedy, Ndujiuba, Charles, Stanley, Uzairue, Nkordeh, Nsikan   +5 more
core   +2 more sources

SparkGrid: Blockchain Assisted Secure Query Scheduling and Dynamic Risk Assessment for Live Migration of Services in Apache Spark‐Based Grid Environment

IET Blockchain, Volume 5, Issue 1, January/December 2025.
Grid computing is an emerging technology that enabled the heterogeneous collection of data and provisioning of services to the users. Due to the high amount of incoming heterogeneous request, grid computing needs an efficient scheduling to reduce execution time and satisfy service level agreement (SLA) and quality of service (QoS) requirements.
Gangasandra Mahadevaiah Kiran, Narasimaiah Nalini   +1 more
wiley   +1 more source

Comparative Analysis of Pipeline Architecture, Resource Deployment, and Configuration for Cassandra API-Compatible Databases: ScyllaDB vs. Cassandra

Applied Computer Systems
This work builds a benchmarking pipeline for resource deployment, configuration input, and the evaluation of Cassandra and ScyllaDB performance. It investigates performance under different scenarios, workload types, and internal structures.
Tyshchenko Iryna, Kouatly Rand, Khan Talha Ali   +2 more
doaj   +1 more source

DStore: A Holistic Key-Value Store Exploring Near-Data Processing and On-Demand Scheduling for Compaction Optimization

IEEE Access, 2018
Log-structured merge tree (LSM-tree)-based key-value stores are widely deployed in largescale storage systems. The underlying reason is that the traditional relational databases cannot reach the high performance required by big-data applications. As high-
Hui Sun, Wei Liu, Zhi Qiao, Song Fu, Weisong Shi   +4 more
doaj   +1 more source

EPO‐R: An efficient garbage collection scheme for long‐term transactions

Concurrency and Computation: Practice and Experience, Volume 36, Issue 17, 1 August 2024.
Summary This article proposes EPO‐R, which is an efficient garbage collection scheme designed for multi‐version concurrency control (MVCC) protocols. MVCC generates a version for each update operation, and it can exhaust physical memory for dynamically changing environments such as IoT payments.
Rina Onishi, Takashi Hoshino, Hideyuki Kawashima   +2 more
wiley   +1 more source

Performance-Untersuchung von NoSQL-Systemen auf Basis von SSD-Speicher mittels Yahoo! Cloud Serving Benchmarks (YCSB)

, 2022
In der vorliegenden Arbeit werden die Datenbankmanagementsysteme MongoDB, ScyllaDB, OrientDB, Aerospike und Redis mit dem Yahoo! Cloud Serving Benchmark unter der Verwendung von SSD-Speicher getestet.
van der Sanden, Tobias
core   +3 more sources

Supporting Low-latency Transactions in Shared-memory Deterministic Databases

, 2021
Deterministic databases provide strong serializability while avoiding concurrency-control related aborts. They also simplify replication and provide good scaling in distributed systems. These properties are achieved by batching transactions in epochs and
He, Zhiqi
core   +1 more source