StarRocks 2.5.13 Cross-Cluster Upgrade and Data Migration Practices

The article outlines a cross‑cluster upgrade to StarRocks 2.5.13, evaluating resource and stability costs, and presents two migration schemes—using external tables and a Flink connector—along with planning, parallel execution, validation steps, and results showing successful migration of over 10 TB at 2 Gb/s across ten nodes, while noting future automation and CDC enhancements.

Cluster UpgradeData MigrationExternal Table

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StarRocks 2.5.13 Cross-Cluster Upgrade and Data Migration Practices

ITPUB

Jul 24, 2022 · Databases

How Apache Doris Enables Real‑Time Queries on Hudi Data Lakes

This article explains Apache Doris’s architecture, introduces the Hudi data‑lake format, compares Lambda and Kappa approaches, and details the design and implementation of Doris’s Hudi external table support, including practical steps, code examples, and future roadmap.

Apache DorisBig DataData Lake

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How Apache Doris Enables Real‑Time Queries on Hudi Data Lakes

StarRocks

Oct 27, 2021 · Databases

How StarRocks 1.19 Boosts Join Performance and Adds Primary Key Support

StarRocks 1.19 introduces a Global Runtime Filter that speeds up joins up to six‑fold, adds BE‑level disk balancing, launches an experimental Primary Key table type with near‑duplicate‑key read performance, enables external‑table writes between clusters, and includes a host of CPU‑cache and query‑optimizations.

External TableStarRocksdatabase

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How StarRocks 1.19 Boosts Join Performance and Adds Primary Key Support

ITPUB

Oct 7, 2017 · Databases

Essential Oracle SQL Commands: From Connecting to Advanced Tablespace Management

This guide provides a comprehensive collection of Oracle SQL commands covering connection, query execution, variable handling, formatting, tablespace creation, modification, and external table operations, presented step‑by‑step for database administrators and developers.

Database AdministrationExternal TableOracle

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Essential Oracle SQL Commands: From Connecting to Advanced Tablespace Management