Hi, On 2019-02-27 10:23:45 +0100, Fabien COELHO wrote: > However, while at it, there is also the question of whether the control file > should be locked when updated, eg with flock(2) to avoid race conditions > between concurrent commands. ISTM that there is currently not such thing in > the code, but that it would be desirable.
Shouldn't be necessary - the control file fits into a single page, and writes of that size ought to always be atomic. And I also think introducing flock usage for this would be quite disproportional. Greetings, Andres Freund