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help / color / mirror / Atom feedFrom: Sam Stearns <[email protected]>
To: Ron Johnson <[email protected]>
Cc: Pgsql-admin <[email protected]>
Subject: Re: Alternate Datafile Location
Date: Fri, 30 Aug 2024 09:47:43 +0930
Message-ID: <CAN6TVjko0k1ZZ+4Je7+dZBifh9YxjQC55si608hzW2Oo88yMdg@mail.gmail.com> (raw)
In-Reply-To: <CANzqJaBhf-VuGNHCDsKhVfM_KiysrXOJ5FMCQa30BdxiJs=OZQ@mail.gmail.com>
References: <CAN6TVjn=4TOm7OLOw7VoOBY9+XVe2YcxV_z1xZtF-Qp_7gddvA@mail.gmail.com>
<CANzqJaDLXqmNXM01sCQr-h-eJUGH+qPLymmLW8uv9A3qEzraAQ@mail.gmail.com>
<CAN6TVjmfO+nrJ6xhBci=EDKdmq0D4o3vYPNuZsvOfBw6TPV9=Q@mail.gmail.com>
<[email protected]>
<CAN6TVjm_ri4B5TRjuu-w3=OWoFPb+9Me1_zma8uDi0p4CTyALg@mail.gmail.com>
<[email protected]>
<CAN6TVjn50xywz0qKcVhra1GFmYF0n1g4s7gdBVMdUr1Dpt9cng@mail.gmail.com>
<CANzqJaBhf-VuGNHCDsKhVfM_KiysrXOJ5FMCQa30BdxiJs=OZQ@mail.gmail.com>
Got it. Thank you everyone for your help!
Sam
On Fri, Aug 30, 2024 at 9:44 AM Ron Johnson <[email protected]> wrote:
> On Thu, Aug 29, 2024 at 7:56 PM Sam Stearns <[email protected]> wrote:
>
>> Ok, we were going with the approach of the Postgres software (cluster)
>> being on the root filesystem then creating databases with data file storage
>> on an alternate filesystem.
>>
>
> PG isn't like SQL Server, where you have a set of catalog databases, and
> then can put user databases anywhere you please.
>
> It's sounding like the better approach would be to install the Postgres
>> software (cluster with initdb) on a filesystem other than root. Do I have
>> that right?
>>
>
> Correct. Postgresql has tablesspaces, but tools like pg_restore and
> PgBackRest are least confusing when all user databases live in the same
> $PGDATA/base. "CREATE DATABASE foo;" handles all that for you.
>
> If you *really* want your user databases spread all over, then one
> possibility is that each has its own instance (aka cluster) and port number.
>
> Ubuntu has pg_lsclusters to help manage that, but other OS's require
> something like "netstat -an | grep :543[2345]" (which doesn't help if an
> instance is shut down.
>
>
>> On Fri, Aug 30, 2024 at 9:17 AM Scott Ribe <[email protected]>
>> wrote:
>>
>>> You should take a step back and read the basic documentation on PG
>>> administration. For instance:
>>> https://www.postgresql.org/docs/16/creating-cluster.html
>>>
>>> We (at least I) have been assuming that you wanted to create a new
>>> database cluster, to run a server against that storage, using initdb. Using
>>> an already running server to put data elsewhere, using createdb is
>>> different, and requires that you create a tablespace first:
>>> https://www.postgresql.org/docs/16/manage-ag-tablespaces.html
>>>
>>>
> --
> Death to America, and butter sauce.
> Iraq lobster!
>
--
*Samuel Stearns*
Lead Database Administrator
*c:* 971 762 6879 | *o:* 503 672 5115 | DAT.com
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Subject: Re: Alternate Datafile Location
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