Re: [bareos-users] Questions about the PostgreSQL plugin

[Brad Ackerman]

PostgreSQL 13 is EOL, so if you don’t upgrade to 18 really soon you’ll be screwed in a way that no amount of backups will fix.

The backup client runs the file dæmon, which is always running as root unless you’ve made an explicit decision to run it as a non-root user.

The wal_archive directory is primarily written to by the postgres user as configured by the archive_command parameter, but bareos-fd will need to delete the backed-up WAL afterwards.

On 2026 Jan 16, at 16:34, Stefan Harbich <stefan....@harnet.de> wrote:

Hello,
i'm using PostgreSQL version 13.
Question:
- After the end of the postgresql plugin ist created a backup file in the wal_archives directory?
- Which user does Bareos use to access the wal_archives directory?
- Does Bareos only need to read from the wal_archives directory, or does it also need to write to it?

Regards, Stefan Harbich

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[Bruno Friedmann (bruno-at-bareos)]

Just to add a precision, (visible as Note in https://docs.bareos.org/TasksAndConcepts/Plugins.html#postgresql-plugin)

> While the PostgreSQL plugin backups only the required files from the WAL archive directory, old files are not removed automatically.