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Subject: Re: PostgreSQL - HA Cluster / Etcd Issue
From: Scott Ribe <scott_ribe@elevated-dev.com>
In-Reply-To: 
 <CAJyV5AaBZy=b=HzjnW-KiTj2_kvt5R0LW7-Cum5W_nYDwhqTzA@mail.gmail.com>
Date: Wed, 20 Aug 2025 06:46:40 -0600
Cc: Pgsql-admin <pgsql-admin@lists.postgresql.org>
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Message-Id: <B287B39E-3296-421A-A8D2-9FCB64EBB03B@elevated-dev.com>
References: 
 <CAJyV5AaBZy=b=HzjnW-KiTj2_kvt5R0LW7-Cum5W_nYDwhqTzA@mail.gmail.com>
To: SOzcn <selahattinozcnma@gmail.com>
Archived-At: 
 <https://www.postgresql.org/message-id/B287B39E-3296-421A-A8D2-9FCB64EBB03B%40elevated-dev.com>
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This is a PostgreSQL mailing list, and your question has nothing to do =
with PostgreSQL.

--
Scott Ribe
scott_ribe@elevated-dev.com
https://www.linkedin.com/in/scottribe/


> On Aug 20, 2025, at 1:40=E2=80=AFAM, SOzcn =
<selahattinozcnma@gmail.com> wrote:
>=20
> Hello,
>=20
> In my database architecture, I use Etcd, Patroni, HAProxy, and =
Keepalived.
>=20
> Although many things in this architecture work as expected, Etcd =
encounters the error "memberID:5960773920904691185 alarm:NOSPACE" once =
every 2 or 3 months. The root cause is that the database size reaches =
the specified limit and Etcd does not clean it up through rotation. I am =
aware of this, but despite reviewing the maintenance documentation, I =
could not find the most appropriate parameter values for this rotation. =
I am sharing an example of my own Etcd configuration below. I kindly ask =
you to share your experience on this matter. I am kinda stuck on this =
issue.
>=20
> In particular, is it possible to schedule the parameter that performs =
this cleanup with a time setting? For example, can I tell it to run the =
compact operation at around 01:00 AM?
>=20
> Best regards.
>=20
>=20
> [Unit]
> Description=3Detcd service
> Documentation=3Dhttps://github.com/etcd-io/etcd
> After=3Dnetwork.target
>=20
> [Service]
> User=3Detcd
> Type=3Dnotify
> ExecStart=3D/usr/local/sbin/etcd \
>   --name etcd1 \
>   --data-dir=3D/etc/etcd \
>   --initial-advertise-peer-urls=3Dhttp://10.115.208.168:2380 \
>   --listen-peer-urls=3Dhttp://192.168.1.1:2380 \
>   --listen-client-urls=3Dhttp://192.168.1.1:2379,http://127.0.0.1:2379 =
\
>   --advertise-client-urls=3D192.168.1.1:2379 \
>   --initial-cluster-token=3D"etcd-cluster" \
>   =
--initial-cluster=3D"etcd1=3Dhttp://192.168.1.1:2380,etcd2=3Dhttp://192.16=
8.1.2:2380,etcd3=3Dhttp://3:2380" \
>   --initial-cluster-state=3D"new" \
>   --log-level=3D"error"
>=20
> [Install]
> WantedBy=3Dmulti-user.target