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How to optimize MySQL for faster insert rate?
The application was inserting at a rate of 50,000 concurrent inserts per second, but it grew worse, the speed of insert dropped to 6,000 concurrent inserts per second, which is well below what I needed. I was able to optimize the MySQL performance, so the sustained insert rate was kept around the 100GB mark, but that’s it.
Why does insert to table slow down MySQL?
Inserting to a table that has an index will degrade performance because MySQL has to calculate the index on every insert. In case there are multiple indexes, they will impact insert performance even more. Check every index if it’s needed, and try to use as few as possible.
How to create batch INSERT statement in MySQL?
Divide the object list into the partitions and generate batch insert statement for each partition.
Why does MySQL support 50, 000 concurrent inserts per second?
The reason for that is that MySQL comes pre-configured to support web servers on VPS or modest servers. The assumption is that the users aren’t tech-savvy, and if you need 50,000 concurrent inserts per second, you will know how to configure the MySQL server.
How many inserts per query does MySQL do?
It takes around 1,000 inserts per query to reach the maximum throughput in both cases, but 40 inserts per query are enough to achieve 90% of this throughput on localhost, which could be a good tradeoff here. It’s also important to note that after a peak, the performance actually decreases as you throw in more inserts per query.
How to do an extended insert in MySQL?
Extended inserts. A typical SQL INSERTstatement looks like: INSERT INTO user (id, name) VALUES (1, ‘Ben’); An extended INSERTgroups several records into a single query: INSERT INTO user (id, name) VALUES (1, ‘Ben’), (2, ‘Bob’); The key here is to find the optimal number of inserts per query to send.