MySQL 8.0: implementing Deadlocks in Bulk Insert Transactions Using InnoDB
I'm working with deadlocks when performing bulk inserts into a MySQL 8.0 database using InnoDB. My application is designed to process a large number of records from a CSV file, and I’m using transactions to ensure data integrity. However, during the insert operation, I occasionally get a deadlock behavior: ``` behavior 1213 (40001): Deadlock found when trying to get lock; try restarting transaction ``` I've wrapped my insert statements in a transaction block, as shown below, and I'm trying to insert about 10,000 records at a time: ```sql START TRANSACTION; INSERT INTO my_table (column1, column2) VALUES (value1, value2), (value3, value4), ...; COMMIT; ``` The behavior seems to happen sporadically, but I've noticed it’s more likely to occur when the transaction size is larger. Additionally, I have foreign key constraints that might be causing issues since the table has relationships with several other tables. I’ve tried reducing the batch size to 1,000 records, but the scenario continues. To debug, I enabled the InnoDB deadlock detection which records deadlock information in the behavior log, and I’m seeing patterns where simultaneous inserts into related tables might be causing conflicts. I’ve also looked into different isolation levels, but changing from `REPEATABLE READ` to `READ COMMITTED` didn’t alleviate the scenario. What strategies can I employ to reduce the likelihood of deadlocks during bulk inserts? Is there a better way to handle large batches of inserts in MySQL while maintaining referential integrity? Any help or insights would be greatly appreciated.