pg.ddx.io pgsql-docs@postgresql.org mailing list archivehelp / color / mirror / Atom feed
Server start with systemd and configured with IP address 2+ messages / 2 participants [nested] [flat]
* Server start with systemd and configured with IP address @ 2022-10-11 20:52 PG Doc comments form <noreply@postgresql.org> 0 siblings, 1 reply; 2+ messages in thread From: PG Doc comments form @ 2022-10-11 20:52 UTC (permalink / raw) To: pgsql-docs@lists.postgresql.org; +Cc: pablito.federico@gmail.com The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/14/server-start.html Description: The url of the document is https://www.postgresql.org/docs/current/server-start.html My suggestion is add to the documentation in the segment that shows the systemd entry inside the [Unit] segment the line After=network-online.target I saw in several sites that most people recommends using After=network.target but this will fail if the server is configured to listen on a specific IP address instead of just localhost or 127.0.0.1 the differences between them is explained here https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/#conceptsinsystemd TLDR; network.target is after the network is up (but presumably without address set, just the network stack) and network-online.target is after an IP address has been set. Best Regards Pablo. ^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Server start with systemd and configured with IP address @ 2022-10-12 14:38 Tom Lane <tgl@sss.pgh.pa.us> parent: PG Doc comments form <noreply@postgresql.org> 0 siblings, 0 replies; 2+ messages in thread From: Tom Lane @ 2022-10-12 14:38 UTC (permalink / raw) To: pablito.federico@gmail.com; +Cc: pgsql-docs@lists.postgresql.org PG Doc comments form <noreply@postgresql.org> writes: > My suggestion is add to the documentation in the segment that shows the > systemd entry inside the [Unit] segment the line > After=network-online.target > I saw in several sites that most people recommends using > After=network.target > but this will fail if the server is configured to listen on a specific IP > address instead of just localhost or 127.0.0.1 Yeah, I have also found with other daemons that if you use specific IP addresses in the configuration, you need network-online.target. Some references suggest that you *also* need to say Wants=network-online.target [1]. It might be that network.target is sufficient if you just bind to "*", but considering that we're not mentioning that either right now, I don't see a need to discuss the difference. (Down the road, maybe we should consider using IP_FREEBIND on Linux, as suggested at [1] ... although that hobbles error detection, so I'm not really sold that it's such a great idea.) regards, tom lane [1] https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/ ^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2022-10-12 14:38 UTC | newest] Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2022-10-11 20:52 Server start with systemd and configured with IP address PG Doc comments form <noreply@postgresql.org> 2022-10-12 14:38 ` Tom Lane <tgl@sss.pgh.pa.us>
This inbox is served by DDX for PostgreSQL; see mirroring instructions for how to clone and mirror all data and code used for this inbox