How ROR (Redis‑On‑Rocks) Cuts Cache Costs by 2/3 with Hot‑Cold Data Swapping

This article explains the design and implementation of ROR (Redis‑On‑Rocks), a Redis extension that adds hot‑cold data swapping using RocksDB to dramatically reduce memory costs, improve performance, and remain compatible with Redis commands, while detailing benchmarks, concurrency control, and future roadmap.

CacheRocksDBScalability

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How ROR (Redis‑On‑Rocks) Cuts Cache Costs by 2/3 with Hot‑Cold Data Swapping

StarRocks

Jan 10, 2024 · Big Data

How Tencent Built the ABetterChoice SaaS A/B Testing Platform for Global Games

In 2022 Tencent's A/B Test team created the overseas SaaS product ABetterChoice, abstracting internal experiment capabilities, adapting to multi‑cloud compliance, and unifying computation with StarRocks, enabling game titles like Honor of Kings, PUBG Mobile, and Ubisoft to run scalable, compliant A/B experiments worldwide.

A/B testingData LakeExperiment Platform

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How Tencent Built the ABetterChoice SaaS A/B Testing Platform for Global Games

Aikesheng Open Source Community

Nov 22, 2022 · Databases

Implementing Hot‑Cold Storage Separation in ClickHouse Using SSD and HDD

This article describes how a ClickHouse cluster was re‑architected to use SSD for hot data and SATA HDD for cold data, details the configuration of custom storage policies, explains a restart‑time path‑collision error, and provides the fix to restore normal operation.

SSDStorage Policyhot‑cold storage

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Implementing Hot‑Cold Storage Separation in ClickHouse Using SSD and HDD