Thread: PostgreSQL Installation

On Thu, 2022-03-10 at 10:04 +0200, edi mari wrote:
> What right way to split the PostgreSQL data between the file system (mount point) in Linux in the installation
process?

Create your own file system for the data directory, so that PostgreSQL cannot fill the root file system.

It can make sense to provide additional file systems for "pg_wal" and the log files.

Yours,
Laurenz Albe
-- 
Cybertec | https://www.cybertec-postgresql.com

On 3/10/22 02:04, edi mari wrote:
> Hi ,
> What right way to split the PostgreSQL data between the file system (mount 
> point) in Linux in the installation process?

These are our mount points:
/var/lib/pgsql/9.6/data/base
/var/lib/pgsql/9.6/data/base/pg_xlog
/var/lib/pgsql/9.6/data/base/pg_log
/var/lib/pgsql/backups

-- 
Angular momentum makes the world go 'round.

Hi,

On 3/11/22 07:06, Ron wrote:
> On 3/10/22 02:04, edi mari wrote:

>> What right way to split the PostgreSQL data between the file system 
>> (mount point) in Linux in the installation process?

> These are our mount points:
> /var/lib/pgsql/9.6/data/base

I would suggest /data instead of /data/base.

> /var/lib/pgsql/9.6/data/base/pg_xlog
> /var/lib/pgsql/9.6/data/base/pg_log
> /var/lib/pgsql/backups

That's fine from my point of view.


CIAO
andreas

Debian installs always include the version number and the name of the 
cluster (you can have several) in the path.

example:

     /var/lib/postgresql/14/main

It's not necessary to use the base path /var/lib/postgresql though. 
According to the FHS (filesystem hierarchy standard), variable data not 
belonging to a human user (whose data reside under /home) should be 
somewhere under /var, so /var/pgsql/14/main would also be nice.

Regards,

Holger

Am 10.03.22 um 09:04 schrieb edi mari:
> Hi ,
> What right way to split the PostgreSQL data between the file system 
> (mount point) in Linux in the installation process?
>
> Thanks
> Edi Mari

-- 
Holger Jakobs, Bergisch Gladbach, Tel. +49-178-9759012

On Mon, 2022-03-14 at 11:50 +0530, Nikhil Shetty wrote:
> Just curious, Is there any technical advantage to having additional file systems for "pg_wal" and the log files.?

1. avoid log files and data files from filling your WAL disk and crashing the server

2. if you are using different devices, spread the I/O load

Yours,
Laurenz Albe
-- 
Cybertec | https://www.cybertec-postgresql.com