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sys schema

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Aikesheng Open Source Community
Aikesheng Open Source Community
Sep 4, 2023 · Databases

Observability of MySQL 8 Replication Using Performance Schema and Sys Schema Views

The article explains how MySQL 8 enhances replication observability by exposing detailed metrics through Performance Schema tables and sys schema views, providing DBAs with richer information such as per‑channel lag, worker thread states, and full replication status beyond the traditional SHOW REPLICA STATUS output.

InnoDB ClusterPerformance SchemaReplication
0 likes · 14 min read
Observability of MySQL 8 Replication Using Performance Schema and Sys Schema Views
Aikesheng Open Source Community
Aikesheng Open Source Community
May 7, 2021 · Databases

Using MySQL sys.diagnostics Stored Procedure for Database Performance Diagnosis

This article explains how MySQL's sys.diagnostics stored procedure collects performance metrics, the information it reports, required permissions, command examples, configurable parameters, and how to generate and interpret diagnostic reports for effective database analysis.

DatabaseDiagnosticsPerformance
0 likes · 9 min read
Using MySQL sys.diagnostics Stored Procedure for Database Performance Diagnosis
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 12, 2020 · Databases

MySQL sys Schema ERROR 1356 Bug When Using mysqldump --all-databases and How to Fix It

The article investigates the MySQL 5.7 sys schema ERROR 1356 caused by mysqldump --all-databases dropping mysql.proc, explains why the bug occurs, cites official documentation and bug reports, and provides four practical solutions including mysql_upgrade, separate sys backups, using --databases, and rebuilding from mysql‑sys.

ERROR 1356bugdatabase backup
0 likes · 12 min read
MySQL sys Schema ERROR 1356 Bug When Using mysqldump --all-databases and How to Fix It