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Editorial Team
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Asked: 2026-05-18T06:05:35+00:00

What should be the correct value for innodb-flush-log-at-trx-commit if I want to make the

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What should be the correct value for innodb-flush-log-at-trx-commit if I want to make the query faster at any cost?
I do not bother about data integrity at this moment. I have set the following in my.cnf

innodb_flush_method=O_DIRECT
innodb-flush-log-at-trx-commit = 2

Is it correct?

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1 Answer

  1. Editorial Team

    innodb-flush-log-at-trx-commit = 0 is slightly faster than 2, but less durable. If you are just reimporting data = 0 is fine, but the savings are not (usually) high enough to toleration the added losses.

    If you want to disable a bunch of features for speed here they are:

    • innodb_doublewrite = 0
    • innodb_checksums = 0
    • innodb_locks_unsafe_for_binlog
    • (session) SET foreign_key_checks = 0
    • log-bin = 0
    • innodb_support_xa = 0

    Not that I don’t recommend any of this. Please be careful with this advice, it is not for production.

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