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Aikesheng Open Source Community
Aikesheng Open Source Community
Jul 9, 2024 · Databases

Resolving ClickHouse “too many mutations” Errors by Cleaning Mutations and Switching to ReplacingMergeTree

The article describes a real‑world ClickHouse incident where excessive UPDATE‑style mutations caused a “too many mutations(1036)” error, explains the cluster’s configuration, and details a step‑by‑step recovery process that clears pending mutations and migrates tables to the ReplacingMergeTree engine to restore service.

ClickHouseDatabaseReplacingMergeTree
0 likes · 7 min read
Resolving ClickHouse “too many mutations” Errors by Cleaning Mutations and Switching to ReplacingMergeTree
DataFunTalk
DataFunTalk
Jul 6, 2022 · Databases

From ClickHouse to ByteHouse: Technical Optimizations and Production Practices

The whitepaper “From ClickHouse to ByteHouse” details ByteDance’s large‑scale deployment of ClickHouse, the challenges of moving it to production, and the key optimizations ByteHouse introduces—including custom table engines, a revamped query optimizer, and elastic compute‑storage separation—to achieve petabyte‑level OLAP performance.

Analytical DatabasesByteHouseClickHouse
0 likes · 6 min read
From ClickHouse to ByteHouse: Technical Optimizations and Production Practices