Hi, On 2019-07-18 16:17:22 +0800, Ning Yu wrote: > This seems buggy as it first checks the existence of the dir and makes the > dir if it does not exist yet, however when executing concurrently a > possible race condition can be as below: > > A: does a/ exists? no > B: does a/ exists? no > A: try to create a/, succeed > B: try to create a/, failed as it already exists
Hm. I'm not really seing much of a point in making mkdir_p safe against all of this. What's the scenario for pg where this matters? I assume you're using it for somewhat different purposes, and that's why it is problematic for you? Greetings, Andres Freund
