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Storage Policy

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DataFunTalk
DataFunTalk
Jun 20, 2023 · Databases

Hot and Cold Data Tiering in Apache Doris 2.0: Architecture, Configuration, and Performance Evaluation

This article explains the hot‑cold data tiering technique in Apache Doris 2.0, covering its motivation, storage‑layer design, configuration steps (resource, storage policy, table/partition settings), cost‑saving calculations, query performance impact, cold‑data compaction, and cache mechanisms, with practical code examples.

Apache DorisCold Data TieringDatabase
0 likes · 18 min read
Hot and Cold Data Tiering in Apache Doris 2.0: Architecture, Configuration, and Performance Evaluation
Aikesheng Open Source Community
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.

ClickHouseDatabaseSSD
0 likes · 6 min read
Implementing Hot‑Cold Storage Separation in ClickHouse Using SSD and HDD