On Sat, May 27, 2023 at 03:17:21PM -0700, Gurjeet Singh wrote: > Upon further testing, I saw that server will not start only if it is > unable to open the port on _all_ the interfaces/addresses. It it's > able to open the port on at least one, the server will start.
This surprised me. I would've expected the server to fail to start if it failed for anything in listen_addresses. After some digging, I found what I believe is the original justification [0] as well as a follow-up thread [1] that seems to call out kernel support for IPv6 as the main objection. Perhaps it is time to reevaluate this decision. > If listen_addresses is empty, then server won't try to open any TCP/IP > ports. The patch does not change any language related to that. Your proposed change notes that the server only starts if it can listen on at least one TCP/IP address, which I worry might lead folks to think that the server won't start if listen_addresses is empty. [0] https://postgr.es/m/6739.1079384078%40sss.pgh.pa.us [1] https://postgr.es/m/200506281149.51696.peter_e%40gmx.net -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
