Createdb: שגיאה: יצירת מסד נתונים נכשלה: שגיאה: מסד הנתונים "discourse" כבר קיים

סיכום מבוסס בינה מלאכותית

A user is encountering an error during the initial installation of Discourse on Ubuntu 22.04 LTS, with the message ERROR: database "discourse" already exists. Despite it being a fresh installation, the database and user roles appear to already exist, likely due to previous failed attempts. The user has tried rebuilding the app multiple times, possibly causing the issue. Another user suggests removing the shared/standalone directory to start fresh and warns about Let’s Encrypt rate limits. A third user reports a similar issue, indicating it might be a common problem. One user claims the error can be ignored, suggesting it may not be critical.

I met an error when install discourse firstly in my server
Ubuntu 22.04LTS
Discourse latest GitHub version
2GB mem
2GB swap

error


2023-06-08 01:19:04.972 UTC [55] postgres@template1 ERROR:  database "discourse" already exists
2023-06-08 01:19:04.972 UTC [55] postgres@template1 STATEMENT:  CREATE DATABASE discourse;
createdb: error: database creation failed: ERROR:  database "discourse" already exists
I, [2023-06-08T01:19:04.977485 #1]  INFO -- : 
I, [2023-06-08T01:19:04.978414 #1]  INFO -- : > su postgres -c 'psql discourse -c "create user discourse;"' || true
2023-06-08 01:19:05.654 UTC [59] postgres@discourse ERROR:  role "discourse" already exists
2023-06-08 01:19:05.654 UTC [59] postgres@discourse STATEMENT:  create user discourse;
ERROR:  role "discourse" already exists

reason

it’s my first installation in the server, but i have rebuild app many times of falure with other errors like My server can access github, but docker can't - #2 by whitewaterdeu

i don’t know when i have created the database and how to fix it

my app.yml

root@cvm-3k8ngdw25i225:/var/discourse# cat containers/app.yml
## this is the all-in-one, standalone Discourse Docker container template
##
## After making changes to this file, you MUST rebuild
## /var/discourse/launcher rebuild app
##
## BE *VERY* CAREFUL WHEN EDITING!
## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT!
## visit http://www.yamllint.com/ to validate this file as needed

templates:
  - "templates/postgres.template.yml"
  - "templates/redis.template.yml"
  # - "templates/web.china.template.yml"
  - "templates/web.template.yml"
  ## Uncomment the next line to enable the IPv6 listener
  #- "templates/web.ipv6.template.yml"
  - "templates/web.ratelimited.template.yml"
  ## Uncomment these two lines if you wish to add Lets Encrypt (https)
  - "templates/web.ssl.template.yml"
  - "templates/web.letsencrypt.ssl.template.yml"

## which TCP/IP ports should this container expose?
## If you want Discourse to share a port with another webserver like Apache or nginx,
## see https://meta.discourse.org/t/17247 for details
expose:
  - "80:80"   # http
  - "443:443" # https

params:
  db_default_text_search_config: "pg_catalog.english"

  ## Set db_shared_buffers to a max of 25% of the total memory.
  ## will be set automatically by bootstrap based on detected RAM, or you can override
  db_shared_buffers: "256MB"

  ## can improve sorting performance, but adds memory usage per-connection
  #db_work_mem: "40MB"

  ## Which Git revision should this container use? (default: tests-passed)
  #version: tests-passed

env:
  LC_ALL: en_US.UTF-8
  LANG: en_US.UTF-8
  LANGUAGE: en_US.UTF-8
  # DISCOURSE_DEFAULT_LOCALE: en

  ## How many concurrent web requests are supported? Depends on memory and CPU cores.
  ## will be set automatically by bootstrap based on detected CPUs, or you can override
  UNICORN_WORKERS: 4

  ## TODO: The domain name this Discourse instance will respond to
  ## Required. Discourse will not work with a bare IP number.
  DISCOURSE_HOSTNAME: discuss.beginner.center

  ## Uncomment if you want the container to be started with the same
  ## hostname (-h option) as specified above (default "$hostname-$config")
  #DOCKER_USE_HOSTNAME: true

  ## TODO: List of comma delimited emails that will be made admin and developer
  ## on initial signup example 'user1@example.com,user2@example.com'
  DISCOURSE_DEVELOPER_EMAILS: 'whitewatercn@outlook.com'

  ## TODO: The SMTP mail server used to validate new accounts and send notifications
  # SMTP ADDRESS, username, and password are required
  # WARNING the char '#' in SMTP password can cause problems!
  DISCOURSE_SMTP_ADDRESS: smtp.mailgun.org
  DISCOURSE_SMTP_PORT: 587
  DISCOURSE_SMTP_USER_NAME: notification@mg.beinner.center
  DISCOURSE_SMTP_PASSWORD: "my smtp password"
  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)
  DISCOURSE_SMTP_DOMAIN: mg.beinner.center
  DISCOURSE_NOTIFICATION_EMAIL: notification@mg.beinner.center

  ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
  LETSENCRYPT_ACCOUNT_EMAIL: notification@mg.beinner.center

  ## The http or https CDN address for this Discourse instance (configured to pull)
  ## see https://meta.discourse.org/t/14857 for details
  #DISCOURSE_CDN_URL: https://discourse-cdn.example.com
  
  ## The maxmind geolocation IP address key for IP address lookup
  ## see https://meta.discourse.org/t/-/137387/23 for details
  #DISCOURSE_MAXMIND_LICENSE_KEY: 1234567890123456

## The Docker container is stateless; all data is stored in /shared
volumes:
  - volume:
      host: /var/discourse/shared/standalone
      guest: /shared
  - volume:
      host: /var/discourse/shared/standalone/log/var-log
      guest: /var/log

## Plugins go here
## see https://meta.discourse.org/t/19157 for details
hooks:
  after_code:
    - exec:
        cd: $home/plugins
        cmd:
          - git clone https://github.com/discourse/docker_manager.git

## Any custom commands to run after building
run:
  - exec: echo "Beginning of custom commands"
  ## If you want to set the 'From' email address for your first registration, uncomment and change:
  ## After getting the first signup email, re-comment the line. It only needs to run once.
  - exec: rails r "SiteSetting.notification_email='notification@mg.beinner.center'"
  - exec: echo "End of custom commands"
root@cvm-3k8ngdw25i225:/var/discourse# 

whole log

That’s strange. I don’t see how that could happen, as such an error should get caught when the code was committed. You might just try to rebuild again.

I see that you have the unsupported-install tag chosen, but this looks like a standard install to me.

thanks for your reply ,jay
i have searched for error line in the whole log , maybe it’s caused by

2023-06-08 01:19:04.972 UTC [55] postgres@template1 ERROR:  database "discourse" already exists
2023-06-08 01:19:04.972 UTC [55] postgres@template1 STATEMENT:  CREATE DATABASE discourse;
createdb: error: database creation failed: ERROR:  database "discourse" already exists
I, [2023-06-08T01:19:04.977485 #1]  INFO -- : 
I, [2023-06-08T01:19:04.978414 #1]  INFO -- : > su postgres -c 'psql discourse -c "create user discourse;"' || true
2023-06-08 01:19:05.654 UTC [59] postgres@discourse ERROR:  role "discourse" already exists
2023-06-08 01:19:05.654 UTC [59] postgres@discourse STATEMENT:  create user discourse;
ERROR:  role "discourse" already exists

it’s my first installation in the server, but i have rebuild app many times of falure with other errors like My server can access github, but docker can’t - #2 by whitewaterdeu

i don’t know when i have created the database and how to fix it

If you’re starting fresh, you can

rm -rf shared/standalone

You are also likely to hit let’s encrypt rate limit issues. The easiest solution is to choose a new subdomain when you’ve solved your other issues.

Oh, now I see the web China template commented out. Don’t you need that?

Did you can to solve this problem? I have a similar error.


I, [2023-07-12T20:27:26.203859 #1]  INFO -- : > su postgres -c 'createdb discourse' || true
2023-07-12 20:27:26.398 UTC [55] postgres@postgres ERROR:  database "discourse" already exists
2023-07-12 20:27:26.398 UTC [55] postgres@postgres STATEMENT:  CREATE DATABASE discourse;
createdb: error: database creation failed: ERROR:  database "discourse" already exists
I, [2023-07-12T20:27:26.423480 #1]  INFO -- : 
I, [2023-07-12T20:27:26.423858 #1]  INFO -- : > su postgres -c 'psql discourse -c "create user discourse;"' || true
2023-07-12 20:27:26.599 UTC [59] postgres@discourse ERROR:  role "discourse" already exists
2023-07-12 20:27:26.599 UTC [59] postgres@discourse STATEMENT:  create user discourse;
ERROR:  role "discourse" already exists

Our script was working normally…

This error is not a problem, you can ignore it.