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Managing Kernel Resources From: Laurenz Albe To: Yaroslav Saburov Cc: Tom Lane , pgsql-docs@lists.postgresql.org Date: Mon, 13 Jul 2026 09:45:29 +0200 In-Reply-To: <4D8D93BD-4799-45BF-BDEF-184892B9C6D1@gmail.com> References: <4D8D93BD-4799-45BF-BDEF-184892B9C6D1@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) MIME-Version: 1.0 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On Mon, 2026-07-13 at 10:25 +0300, Yaroslav Saburov wrote: > > What is the name of the process used here?=C2=A012 =D0=BB=D0=B8=D0=BF. = 2026=C2=A0=D1=80. =D0=BE 10:12 Laurenz Albe =D0= =BF=D0=B8=D1=88=D0=B5: > >=20 > > =EF=BB=BFOn Sun, 2026-07-12 at 07:46 +0300, Yaroslav Saburov wrote: > > > postgres@sql:~$ cat /pgdatabase/data/postmaster.pid=C2=A0 > > > 58 > > > /pgdatabase/data > > > 1783830699 > > > 5432 > > > /var/run/postgresql > > > localhost > > > =C2=A024381256 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0 > > > ready=C2=A0 =C2=A0 > > > postgres@sql:~$ ps 58 > > > =C2=A0 =C2=A0 PID TTY=C2=A0 =C2=A0 =C2=A0 STAT =C2=A0 TIME COMMAND > > > =C2=A0=C2=A0 =C2=A0 58 ?=C2=A0 =C2=A0 =C2=A0 =C2=A0 Ss =C2=A0 =C2=A0 = 0:00 /usr/lib/postgresql/18/bin/postgres -D /pgdatabase/data -c config_file= =3D/etc/postgresql/18/main/postgresql.conf > > >=20 > > > Show me process postmaster? > >=20 > > You found it! > >=20 > > "Postmaster" is not the name of the executable or the process title (an= y more), > > it is just what we call that process. =C2=A0It is a technical term. > > You're wrong. > > Let's take a look: > > Section 18.3.1 > > HINT: Is another postmaster already running on port 5432? I don't see the connection. But since you know enough to be certain that I am wrong, I am clearly not in a position to be of assistance. Yours, Laurenz Albe