Re: Connection Timeout Issue due to intermittent non-response of Postgre database

Thanks, I'll check it out. then, I will update to all.

2023년 11월 5일 (일) 오전 12:33, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>님이 작성:

> =?UTF-8?B?7J207IOB7JuQ?= <swlee(dot)kioplo(at)gmail(dot)com> writes:
> > The Postgre database does not respond intermittently, causing a
> connection
> > timeout in the Spring Framework. There is no regularity in the occurrence
> > of connection timeouts and they do not repeat continuously. Not easy to
> > track.
>
> I'd try turning on statement logging, and maybe also statement duration
> logging, and then matching up the times of observed client-side outages
> with what's happening according to the postmaster log. Connection
> and disconnection logging might be useful too.
>
> A likely bet about the root cause is an unreasonably short connection
> timeout in some network infrastructure between your client and the
> database server. That would manifest as both sides reporting that the
> other side disconnected (not necessarily at the same time, but for the
> same connection). If so, it could likely be cured by adjusting the
> database's TCP keepalive settings. But you ought to gather data
> first.
>
> regards, tom lane
>