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
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