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I've been trying to set up Nextcloud and MariaDB with the Linux server images and hit my road block when I want to get through the first run wizard of Nextcloud:

Error message incl. all settings of first run wizard

Problem

I.e. the first time wizard gives me Error while trying to create admin user: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory.

Question:

Where is that coming from and how to solve the problem?

System

I'm using Amahi 11 and have installed docker from the repositories. Docker verision:

  Client:
 Version:           18.09.0
 API version:       1.39
 Go version:        go1.10.4
 Git commit:        4d60db4
 Built:             Wed Nov  7 00:48:52 2018
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.0
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.4
  Git commit:       4d60db4
  Built:            Wed Nov  7 00:19:08 2018
  OS/Arch:          linux/amd64
  Experimental:     false

I am starting nextcloud and mariadb with docker-compose. Following the content for mariadb:

version: '2'
  services:
    mariadb:
      image: linuxserver/mariadb
      container_name: mariadb
      environment:
        - PUID=XX
        - PGID=YYY
        - MYSQL_ROOT_USER=root
        - MYSQL_ROOT_PASSWORD=secret
        - MYSQL_DATABASE=nextcloud
      volumes:
        - <path/to/my/folder>:/config
      ports:
        - 3307:3306
      restart: unless-stopped

Already tried:

  1. A lot of research, which came up empty or lead me to do the next point:

  2. So from the error info I started checking if the database actually exists:sudo docker exec -it mariadb bash. There I figured, that access to command-line with 'mysql' for root was denied because the password was not set. (mmmh... is ther something wrong with my docker-compose-file?) Anyway I corrected that one with mysql -u root -pSECRETand mysql -u root --password=SECRET. With show databases; I found no nextcloud database. (There MUST be something wrong with my docker-compose-file.) So I created it as well (create database nextcloud;). Database is now shown properly and I found it in <path/to/my/folder>. Result: No change, problem still there.

  3. I did some more editing with on my docker-compose-file:

    version: '2'
  services:
    mariadb:
      image: linuxserver/mariadb
      container_name: mariadb
      environment:
        - MYSQL_ROOT_PASSWORD=secret
        - MYSQL_DATABASE=nextcloud
        - PUID=XX
        - PGID=YYY
      volumes:
        - <path/to/my/folder>:/config
      ports:
        - 3307:3306
      restart: unless-stopped

So I changed the hierarchy and eliminated the MYSQL_ROOT_USER=rootline. When restarting I can mysql -u root --password=SECRET and show the nextcloud database. YET, I am not sure, if these changes remained in the volume from my last (manual) changes. Result: Problem still there.

Potherca
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akrea
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  • Does this answer your question? [Using Docker I get the error: "SQLSTATE\[HY000\] \[2002\] No such file or directory"](https://stackoverflow.com/questions/40075065/using-docker-i-get-the-error-sqlstatehy000-2002-no-such-file-or-directory) – Jsowa Sep 12 '20 at 19:41

8 Answers8

5

I changed localhost -> mariadb and it worked!

HoangDoan
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4

Just for curiousity I started playing around with the localhost-port. I chose 3307 because my host-system has a mariadb running on 3306, which I do not want to use. So altering port localhost:3307 to localhost:WXYZ - you name it gives the same error... mmmh - changeing localhost to <your host-IP>!!!

SUCCESS

akrea
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3

I had to use nextcloud-mariadb:3306 as the connection string. I figured it out by running $ docker ps -a which lists the name and the port.

Michael Mc Donnell
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1

Solution:

As other answers have mentioned, the solution is don't use localhost. Even changing to 127.0.0.1 appears to be sufficient *(see note below)

Explanation:

No such file or directory is the result of mysql attempting to connect over a local socket. This happens when either of these settings is set to localhost:

  1. Database host field of the WebUI
  2. environment variable MYSQL_HOST

*Note: in the case of #2, it is not sufficient to "fix" the Database host field in the WebUI, the environment variable MYSQL_HOST always takes precedence.
(This is true as of NextCloud version 25.0.0.18)

user2880156
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0

When you run Nextcloud in docker, add --link mariadb:mariadb. You can then use mariadb to replace localhost

Markus
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OverSang
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0

I had to use my custom server hostname, instead of localhost. On Linux you can get it by executing the command hostname.

Konrad G
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0

I solved the same problem when I changed the Nexcloud MYSQL_HOST environment parameter from localhost to database service/image name (in my case MYSQL_HOST: mysql ) in the docker-compose.yml

version: "3.7"
services:

  mysql:
    image: mysql
    container_name: mysql-nextcloud
    restart: unless-stopped
    ports:
      - 3306:3306
    environment:
     ...
    volumes:
      ...

  app:
    image: nextcloud
    container_name: nextcloud
    restart: unless-stopped
    ports:
      - 80:80
    links:
      - mysql
    volumes:
      ...
    environment:
      MYSQL_PASSWORD: ...
      MYSQL_DATABASE: ...
      MYSQL_USER: ...
      MYSQL_HOST: mysql
Alexander Ivashchenko
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I changed the database name(localhost:PORT -> container_name), and it worked!

By the way, the [localhost:PORT] wroked well before!

daotoyi
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