# Altinity Expert Clickhouse Replication

> Diagnose ClickHouse replication health, Keeper connectivity, replica lag, and queue issues. Use for replication lag and read-only replica problems.

- Skill: `altinity/altinity-expert-clickhouse-replication` (Agent Skill, multi-file: 5 files)
- Install (CLI): `npx skillmds@latest add altinity/altinity-expert-clickhouse-replication`
- Raw SKILL.md: https://api.skillmd.com/api/skills/altinity/altinity-expert-clickhouse-replication/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: Apache-2.0
- Author: altinity (https://skillmd.com/u/altinity)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/altinity/altinity-expert-clickhouse-replication

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Read the SQL files below from this skill's directory, run the queries, and analyse the results:
  - `triage.sql`
  - `queue.sql`
  - `fetches.sql`
  - `keeper.sql`


## Chaining
On mutation problems follow the `altinity-expert-clickhouse-mutations` skill.