From: Tom Lane <tgl@sss.pgh.pa.us>
To: Edward J. Sabol <edwardjsabol@gmail.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: pg_stat_activity's client_addr column contains "::1" but actually comes from elsewhere?
Date: Mon, 16 Nov 2020 16:49:11 -0500
Message-ID: <858450.1605563351@sss.pgh.pa.us> (raw)
In-Reply-To: <371E399B-8751-4A50-890D-02F899581EB6@gmail.com>
References: <371E399B-8751-4A50-890D-02F899581EB6@gmail.com>
"Edward J. Sabol" <edwardjsabol@gmail.com> writes:
> Hello! I'm trying to track down where some connections are coming from. "select pid,client_addr,client_hostname from pg_stat_activity" shows multiple entries with values with client_addr = "::1". "client_hostname" is blank for all entries, by the way, and unhelpful in this scenario. Also, "state" is "idle" for these entries I'm interested in, in case that matters.
> ::1 would imply the IPv6 loopback address, so that means the connection is coming from a process on the server, right? But I'm positive there is no process on this server that is connecting to PostgreSQL (other than my psql session).
> So where are they actually coming from and why is PostgreSQL seemingly misreporting them as coming from ::1?
Well, unless the kernel is lying to us, that is where the connection
came from. Perhaps snooping around with netstat and lsof (if you have
it) would be helpful.
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, edwardjsabol@gmail.com
Subject: Re: pg_stat_activity's client_addr column contains "::1" but actually comes from elsewhere?
In-Reply-To: <858450.1605563351@sss.pgh.pa.us>
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