DBAs’ Inconceivable Tales: Mystery of the Freezing MariaDB Database
How our MariaDB / MySQL Support engineers resolved a mysterious problem of MariaDB freezing every few hours for no apparent reason.
Entries by Gordan Bobic
SSM 8.8.1.17.5.3 Released
New Shattered Silicon Monitoring (SSM) 8.8.1.17.5.3 release is now available with additional features and fixes
MySQL Parallel Replication Pitfalls: Group Commit Sync Delay
MySQL parallel replication is a useful feature, but there are some pitfalls to watch out for. Getting it wrong can cripple performance.
SSM – PMM 1.x Fork with Additional Features
SSM is a fork of PMM 1.x with additional features, updates and fixes. Notable new features in the initial release include QAN query harvesting via slow log in RDS, manual node cleanup functionality, and ARM64 builds.
MySQL / MariaDB: Waiting for table flush
Troubleshooting performance degradation caused by pileup of queries stuck in “Waiting for table flush” state in MySQL and MariaDB.
MySQL / MariaDB: Waiting for query cache lock
Troubleshooting performance degradation caused by pileup of queries stuck in “Waiting for query cache lock” state in MySQL and MariaDB.
MariaDB Performance Tuning and MySQL Performance Tuning
A summary of basics of MariaDB and MySQL performance tuning, along with a few more advanced hints and tips. Beyond these, further tuning becomes very workload specific.
MariaDB and MySQL DROP / TRUNCATE Lock / Stall Bug, Mitigations and Workarounds
When you DROP or TRUNCATE a table or partition in MySQL and you have a large buffer pool, you may noticed a complete server lock-up or stall of multiple seconds. Mitigation and Workarounds.
MariaDB / MySQL Performance Tuning and Optimization: Data Types
Data types matching between the table columns and queries is important – mismatch usually prevents the use of indexes.
