VLDB | BestHub

Tencent Tech

Sep 27, 2023 · Databases

PolySI & Tesseract: New Black‑Box Tools for Snapshot Isolation & Schema Evolution

Tencent Cloud, in collaboration with Nanjing University, ETH Zurich, and Simon Fraser University, presented two VLDB‑2023 papers introducing PolySI, a black‑box checker for snapshot isolation, and Tesseract, an online, transactional schema‑evolution technique, both demonstrating superior performance and practical impact on modern cloud databases.

VLDBblack-box testingdatabases

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PolySI & Tesseract: New Black‑Box Tools for Snapshot Isolation & Schema Evolution

AntTech

Sep 30, 2022 · Databases

OceanBase: Distributed Architecture, High‑Performance Storage Engine, Paxos‑Based 2PC, and Record‑Breaking TPC‑C Benchmarks

The article reviews OceanBase's distributed relational database design, its integrated architecture, high‑compression LSM‑tree storage engine, Paxos‑enhanced two‑phase commit protocol, and how these innovations enabled the system to set successive world records in the TPC‑C benchmark, illustrating China's growing database capabilities.

Database PerformanceDistributed DatabaseLSM Tree

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OceanBase: Distributed Architecture, High‑Performance Storage Engine, Paxos‑Based 2PC, and Record‑Breaking TPC‑C Benchmarks

Tencent Cloud Developer

Aug 29, 2022 · Big Data

Tencent CLS: High‑Performance Time‑Series Search Engine for Cloud Log Service

Tencent’s Cloud Log Service augments Lucene with a dedicated time‑series index—using timestamp ordering, a secondary index, reverse binary search, and histogram optimization—to cut log query complexity, delivering up to 40‑50× faster responses, higher concurrency, and markedly better performance than traditional ELK‑style and competing cloud log solutions.

High PerformanceLuceneVLDB

0 likes · 14 min read

Tencent CLS: High‑Performance Time‑Series Search Engine for Cloud Log Service

Tencent Cloud Developer

Sep 4, 2019 · Databases

Lightweight and Efficient Temporal Database Management System in TDSQL (T‑TDSQL) – VLDB 2019 Industry Track Paper

The VLDB 2019 Industry Track paper presents T‑TDSQL, a lightweight full‑temporal extension of Tencent’s distributed OLTP database TDSQL that separates current and historical data, uses a hybrid storage model, rewrites temporal predicates, and achieves under 10% performance overhead while halving business execution time in production.

Database SystemsHybrid Transactional/Analytical ProcessingTDSQL

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Lightweight and Efficient Temporal Database Management System in TDSQL (T‑TDSQL) – VLDB 2019 Industry Track Paper

Tencent Cloud Developer

Oct 16, 2018 · Databases

MSQL+: A Plugin Toolkit for Similarity Search in Distributed Relational Database Systems (VLDB 2018 Demo)

MSQL+ is a plugin toolkit that embeds similarity‑search capabilities directly into distributed relational databases such as Tencent’s TDSQL, using B‑tree indexes on generated signatures, customizable DIST functions, and various pivot‑selection strategies to enable scalable, SQL‑standard, approximate queries across sharded data.

Distributed DatabaseMSQL+RDBMS

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MSQL+: A Plugin Toolkit for Similarity Search in Distributed Relational Database Systems (VLDB 2018 Demo)

AntTech

Jan 4, 2018 · Databases

Report on VLDB 2017 Conference: Insights and Highlights from Database Research

Attending VLDB 2017 in Munich, the report summarizes the conference’s broad coverage of database research—from new hardware‑accelerated prototypes and Spark‑based big‑data processing to Oracle and SAP HANA case studies, keynotes, notable papers, and reflections on industry trends and Chinese contributions.

Database SystemsQuery OptimizationVLDB

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Report on VLDB 2017 Conference: Insights and Highlights from Database Research