What are the trade-offs between different concurrency control mechanisms in terms of performance and data consistency

Oct 11, 2021 ... I'm seeing 80-95ms transaction times for the same amount of data. DB configurations are as identical as they can be for MySQL vs. MariaDB, so I'm at a loss as ... Mar 7, 2015 ... If I understand correctly, the use of START TRANSACTION and COMMIT as a single unit could be a performance optimization, particularly if invoked ... Mar 9, 2021 ... Python MySQL Commit(), rollback() and setAutoCommit() to manage transactions · Create MySQL database connections in Python. · Prepare the SQL ... Nov 5, 2022 ... Error Code [87:90] Full or log-only backup operation fails. Note that this is a MySQL end side issue which is happening due to the fact that binary logs were ... May 5, 2023 ... As you can see, MySQL Server provides a lot information via Performance_Schema and the binary logs. Parsing that information, you can retrieve ... Dec 29, 2020 ... Autocommit setting: By default, MySQL runs with autocommit mode enabled. This means that, when not otherwise inside a transaction, each ... Sep 27, 2009 ... I have a couple of tables in MySQL. The id in table 1 (parent) is an auto_increment value and this is a foreign key in table 2 (child). Backup and transaction log retention values can be changed from the default setting. Learn more. Final backups. Final backups allow you to take a backup of your ... Apr 11, 2025 ... The most common and efficient way is to use the slow query logs. You need to determine first if your slow query logs are enabled. Jul 6, 2017 ... MySQL, transaction, and alot of records · Innodb works better when the table has a primary key. · Innodb primary keys work best if the value is ...