How to Diagnose and Fix Extreme ClickHouse Load Spikes in Production

A production ClickHouse cluster suddenly showed blacked‑out dashboards due to CPU load soaring above 2,700%, and this guide walks through step‑by‑step diagnostics using system tables, a simple query to spot heavy SQL, and practical remediation actions to restore normal load levels.

ClickHouseDatabase PerformanceSQL Optimization

0 likes · 7 min read

How to Diagnose and Fix Extreme ClickHouse Load Spikes in Production

dbaplus Community

Feb 22, 2016 · Databases

Mastering Greenplum: Planning, Data Modeling, and Daily Ops Best Practices

This article delivers a comprehensive guide to Greenplum deployment, covering early architecture planning, data‑model design, daily maintenance best practices, system‑table management, diagnostic tools like gpcheckcat, and detailed troubleshooting techniques for persistent tables and other common issues.

GreenplumMPPSystem Tables

0 likes · 13 min read

Mastering Greenplum: Planning, Data Modeling, and Daily Ops Best Practices