Hey I want to see someone example app. So I downloaded it off github and installed the version of ruby they are using ruby 2.0.0 but when I try to do $ rake db:migrate I get this error:
rake db:migrate
rake aborted!
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
/home/alain/.rvm/gems/ruby-2.0.0-preview2/gems/activerecord-4.0.0.rc1/lib/active_record/connection_adapters/postgresql_adapter.rb:796:in `initialize'
/home/alain/.rvm/gems/ruby-2.0.0-preview2/gems/activerecord-4.0.0.rc1/lib/active_record/connection_adapters/postgresql_adapter.rb:796:in `new'
...(etc)
Any idea what I should do ?
database.yml
development:
adapter: postgresql
host: localhost
encoding: unicode
database: rentmybike_dev
pool: 5
username: alain
password: obama
test:
adapter: postgresql
encoding: unicode
database: rentmybike_test
pool: 5
# Add the below...
production:
adapter: postgresql
host: localhost
encoding: unicode
database: rentmybike_production
pool: 5
username: alain
password: obama
To install postgres you may use these commands:
sudo apt-get install postgresql-9.1 postgresql-server-dev-9.1
Then you should set password to newly user
sudo passwd postgres
You have to ensure that database configuration parameters(like username, password etc) in config/database.yml are correct.
And then:
rake db:setup
will create databases and restore schemas if any.
Related
After installing the needed ruby version with: rvm install 2.7.1 and installing all the gems,
I was planning to create the db with rails db:create but I am getting this error:
could not connect to server: Connection refused
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5442?
Couldn't create 'development' database. Please check the configuration.
rails aborted!
PG::ConnectionBad: could not connect to server: Connection refused
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5442?
My database.yml
default: &default
adapter: postgresql
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 15 } %>
host: <%= ENV.fetch("DATABASE_HOST") { '127.0.0.1' } %>
development:
<<: *default
database: development
test:
<<: *default
database: test
production:
<<: *default
database: production
Seems that it's related to postgres.
It's version is: postgres (postgreSQL) 12.4
pg gem version is 1.2.3
Restarting the postgresql didn't helped
It appeared that I needed to create a new PostgreSQL database cluster.
First you need to remove the postgres dir in the /usr/local/var/
you can use this code - cd /usr/local/var/ && rm -rf postgres
after that - create the new postgres folder mkdir postgres (inside /usr/local/var)
and initialise the creation of the new PostgreSQL database cluster with -
cd && initdb --locale=C -E UTF-8 /usr/local/var/postgres
The last thing, restart the postgres - brew services restart postgresql
in database.yml
development:
adapter: postgresql
encoding: unicode
database: demo_test_development
pool: 5
username: adarsh
password:
timeout: 5000
host: localhost
port: 5432
test:
adapter: postgresql
encoding: unicode
database: demo_test_test
pool: 5
username: adarsh
password:
timeout: 5000
host: localhost
port: 5432
in gem file
group :development do
gem 'pg'
gem 'taps'
end
then I do
1) Bundle install (is working)
2)rake db:setup,db:create,db:migrate(but is not working)
Getting error : could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432?
Couldn't create 'demo_test_development' database. Please check your configuration.
You need to install postgresql package into your system you can refer to this link for instruction regarding installing postgres all you need to do is execute the following commands
sudo apt-get install postgresql postgresql-contrib
this installs postgres into your system
then you need to create a user with the details that you have mentioned in the database.yml file of your rails application
You can use pgadmin for db browser you can refer to this question for other tools
to install pgadmin3 run the following command
sudo apt-get install pgadmin3
then configure it with the details like host port etc that you are using(refer to database.yml)
You are using gem 'pg' in development group in gem file.
group :development do
gem 'pg'
gem 'taps'
end
Include it in every environment by moving this line out of development group.
I am using rails 4.2.6 and ruby 2.3 to create an application .The database I am using is postgresql . When I am running the rails s and going to localhost:3000 then the error PG::Connection bad is showing . how to fix it ?
could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
when you display such an error, postgresql server is already running.
Check PG status;
pg_ctl -D /usr/local/var/postgres status
Response;
pg_ctl: server is running (PID: 377)
/usr/local/Cellar/postgresql/12.1/bin/postgres "-D" "/usr/local/var/postgres"
Kill the process by pid
kill 377
If your postgresql server is running fine, your configuration in rails might be not well set here is an exemple:
file in config/database.yml
default: &default
adapter: postgresql
encoding: unicode
pool: 5
timeout: 5000
development:
<<: *default
host: localhost
username: your_pg_username
password: your_pg_password
port: your_pg_server_port_5432_by_default
database: your_databasename
I am trying to follow this railscast tutorial. Now I am in the step, where you create the database with rake db:create:all, but I got this error message :
FATAL: password authentication failed for user aldila
I made the user aldila through pgAdmin, by right-clicking the login role and add user aldila with password.
So, here is my database.yml :
development:
adapter: postgresql
host: localhost
encoding: unicode
database: my_app_development
pool: 5
username: aldila
password: *mypass*
test:
adapter: postgresql
host: localhost
encoding: unicode
database: my_app_test
pool: 5
username: aldila
password: *mypass*
production:
adapter: postgresql
host: localhost
encoding: unicode
database: my_app_production
pool: 5
username: aldila
password: *mypass*
Here is my pg_hba.conf
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#host replication postgres 127.0.0.1/32 md5
#host replication postgres ::1/128 md5
Maybe there is something's wrong with the installing of PostreSQL, because if I type
psql --version on my command, this is what I got :
'psql' is not recognized as an internal or external command,
operable program or batch file.
But I have no idea what went wrong. I install it from here and pick download the installer from EnterpriseDB for all supported versions.
I know there are already similar questions like this, but I follow this one and this one, but I still get the same error message. I would be really appreciated, if anyone could help. Thanks
Your postgresSQL password didn't match your database.rb's password.. it depends on what environment you are using..
I have an ec2 server and rds server.
and a Ruby On Rails App
connecting to the rds with these settings worked for me in local ENV:
host: myappnameandhash.us-west-2.rds.amazonaws.com
adapter: mysql2
encoding: utf8
reconnect: false
database: mainDb
pool: 20
username: root
password: xxxx
socket: /var/run/mysqld/mysqld.sock
port: 3306
but on my EC2 server I don't have that mysqld.sock file
so i get this error:
FATAL: failed to connect to MySQL (error=Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2))
what do i need to install in order to have the socket?
thanks
update:
I removed the socket definition and the port.
I deploy using capistrano , now i ssh to my server and go to the "current" folder. there i try to run: rake ts:start
and i get the following:
rake aborted!
Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
but i don't even have the socket definition in my database.yml file anymore
Remove the socket and port number from your database.yml file and then try, it will work.
You must specify the "host" of your RDS, and also configure the security groups in the RDS to allow your instance to connect to it.
I know this has been a while, just encountered this issue with my EC2 server connecting to RDS. Would like to share how I resolve this.
First removing socket and port from the database.yml help
#In your database.yml
development:
#some configuration
staging:
#some configuration
production:
adapter: mysql2
encoding: utf8
reconnect: false
pool: 20
host: url.to.rds.server
database: your-database
username: your-username
password: your-password
To run this rake command on production, you need to specify your rails-env, e.g. if you are using production environment, it should be
bundle exec rake ts:start RAILS_ENV=production