MySQL DBA Support and Remote DBA Services
Introduction The InnoDB history list length can grow significantly if there are long-running transactions that generate a lot of undo logs or if there are frequent transactions with large amounts of data being modified. This […]
In MySQL, undo operations are used to provide transactional consistency and to allow for rolling back changes made to the database during a transaction. Undo operations are implemented in the InnoDB storage engine, which is […]
Reducing lock contention in MySQL involves implementing various techniques and strategies that help minimize the occurrence of lock-related performance issues. Here are some of the ways to reduce lock contention in MySQL: By implementing these […]
The fraudulent traffic and clicks can result in significant revenue loss for mobile ad networks. Advertisers pay for ad impressions and clicks that are not actually driving real business value, and the mobile ad network […]
Introduction Redo log file IO operations can significantly impact the performance of a MySQL database. The redo log is used to recover the database after a crash or unexpected shutdown. It records all changes made […]
Locks and wait events can significantly impact MySQL performance as they can cause queries to wait, leading to slower response times and decreased performance. The main cause of lock and wait events is contention for […]
MyRocks is a storage engine for the MySQL database that uses RocksDB, a high-performance key-value store, as its underlying storage engine. By combining Bloom filter offloading and storage indexes, it is possible to further improve […]
Correlated subqueries in MySQL can be slow because they require the subquery to be executed for each row in the outer query. This means that the subquery is executed repeatedly, and the results are used […]
In MySQL 8, invisible indexes are a feature that allows you to create an index without it being used by the optimizer. This can be useful in situations where you want to test the impact […]
Introduction In InnoDB, a linear tree is a type of data structure used for indexing and searching data. Linear trees are also known as B+ trees. The key characteristic of a linear tree is that […]
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