Re: [HACKERS] Incomplete startup packet errors

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jobin Augustine <jobinau(at)gmail(dot)com>
Cc: Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Christoph Berg <myon(at)debian(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [HACKERS] Incomplete startup packet errors
Date: 2019-11-25 15:02:42
Message-ID: 23082.1574694162@sss.pgh.pa.us
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Jobin Augustine <jobinau(at)gmail(dot)com> writes:
> However, Checking whether the port is open is resulting in error log like:
> 2019-11-25 14:03:44.414 IST [14475] LOG: invalid length of startup packet
> Yes, This is different from "Incomplete startup packet" discussed here.

> Steps to reproduce:
> $ telnet localhost 5432
>>
>>

Well, the agreed-to behavior change was to not log anything if the
connection is closed without any data having been sent. If the
client *does* send something, and it doesn't look like a valid
connection request, I think we absolutely should log that.

regards, tom lane

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