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Added the usage of PostgreSQL unix sockets (#6272)

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* Added db_url for PostreSQL via unix socket

* Added informations about sockets + instructions for pg_hba.conf
This commit is contained in:
Niklas Janz 2018-09-13 15:08:51 +02:00 committed by Fabian Affolter
parent a16cedbe4f
commit c47cb41b46
1 changed files with 23 additions and 0 deletions
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23
source/_components/recorder.markdown
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@ -154,12 +154,19 @@ If the `recorder` component is activated then some components support `restore_s
| MySQL (pymysql) | `mysql+pymysql://user:password@SERVER_IP/DB_NAME?charset=utf8` |
| PostgreSQL | `postgresql://SERVER_IP/DB_NAME` |
| PostgreSQL | `postgresql://scott:tiger@SERVER_IP/DB_NAME` |
| PostgreSQL (Socket) | `postgresql://@/DB_NAME` |
| MS SQL Server | `mssql+pymssql://user:pass@SERVER_IP/DB_NAME?charset=utf8` |
<p class='note'>
If you use MariaDB 10 you need to add port 3307 to the SERVER_IP, e.g., `mysql://user:password@SERVER_IP:3307/DB_NAME?charset=utf8`.
</p>
<p class='note'>
Unix Socket connections always bring performance advantages over TCP, if the database on the same host as the `recorder` instance (i.e. `localhost`).</p>
<p class='note warning'>
If you want to use Unix Sockets for PostgreSQL you need to modify the `pg_hba.conf`. See [PostgreSQL](#postgresql)</p>
### {% linkable_title Database startup %}
If you are running a database server instance on the same server as Home Assistant then you must ensure that this service starts before Home Assistant. For a Linux instance running Systemd (Raspberry Pi, Debian, Ubuntu and others) then you should edit the service file.
@ -225,6 +232,22 @@ $ sudo apt-get install postgresql-server-dev-X.Y
$ pip3 install psycopg2
```
For using Unix Sockets, add the following line to your [`pg_hba.conf`](https://www.postgresql.org/docs/current/static/auth-pg-hba-conf.html):
`local DB_NAME USER_NAME peer`
Where `DB_NAME` is the name of your database and `USER_NAME` is the name of the user running the Home Assistant instance (see [securing your installation](/docs/configuration/securing/)).
Reload the PostgreSQL configuration after that:
```bash
$ sudo -i -u postgres psql -c "SELECT pg_reload_conf();"
pg_reload_conf
----------------
t
(1 row)
```
A service restart will work as well.
### {% linkable_title MS SQL Server %}
For MS SQL Server you may have to install a few dependencies: