I am following the tutorial on Heroku on how to use heroku on iOS. The example uses a postgres database to store images and geolocation. I downloaded the postgres app on my Lion OSX and it says the postgres server running correctly. Now I am stuck on this step:
Update the config/database.yml file to reference the correct database user and password for >the development and test environments. Then create the local development database and run the >migrations.
$ bundle exec rake db:create db:migrate
== CreatePhotos: migrating ===========
-- create_table(:photos)
...
But I receive the following error:
could not connect to server: Permission denied
Is the server running locally and accepting
connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"?
....
What did I do wrong? I tried to manually create the postgres database using the createdb command but I go the same connectivity error.
This error occurs when PostgreSQL is not listening on the socket specified. Causes can include (in order to check)
PostgreSQL not properly installed
PostgreSQL stopped or not running.
PostgreSQL listening on a different socket or in a different directory. This information is specified in the postgresql.conf.
Related
I'm following this tutorial on how to run Postgres on MAC OS X with MAMP. But I can't seem to add PostgreSQL to my PATH variable. When I run export PATH="/Library/PostgreSQL/11/bin" I get this error:
prompt_context:13: command not found: whoami
prompt_background_jobs:1: command not found: wc
prompt_background_jobs:2: command not found: awk
Here's exactly what I did:
I downloaded PostgreSQL 11.2 from Enterprise DB
I installed it using the installer:
username: postgres
password: postgres
port: 5433
The PostgreSQL folder can now be found here: /Library/PostgreSQL. Inside there's a folder called 11. Inside /Library/PostgreSQL/11 I can see the bin folder and data folder.
There's another folder inside my Applications folder called PostgreSQL 11. Here I can see a Documentation folder and some other programs I believe:
Application Stack Builder
pgAdmin 4
Reload Configuration
SQL Shell (psql)
The following error appears when I ignore setting the PATH variable and run su postgres:
su: Sorry
or sudo postgres:
"root" execution of the PostgreSQL server is not permitted.
The server must be started under an unprivileged user ID to prevent
possible system security compromise. See the documentation for
more information on how to properly start the server
Also, running psql gives me this error, because PostgreSQL is not included in my environmental variables:
psql: 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"?
Note: this error asks if the server is accepting Unix domain socket with a port 5432, while I installed PostgreSQL on port 5433, what's up with that? Moving to /Library/PostgreSQL/11/bin with cd and running sudo ./psql (should run the Unix Executable file psql) gives me the same error.
Resources that didn't help me any further:
Createuser: could not connect to database postgres: FATAL: role "tom" does not exist
https://dba.stackexchange.com/questions/3005/how-to-run-psql-on-mac-os-x
Psql could not connect to server: No such file or directory, 5432 error?
When you run export PATH="/Library/PostgreSQL/11/bin" you are telling the system that all the commands you need are in that single directory. Since you also need standard system utilities like wc you also need to include the directories where they reside in your PATH. Normally you would do this to simply add the postgres directories to the list of directories searched for commands:
export PATH="/Library/PostgreSQL/11/bin:$PATH"
I have this problem trying to connect to the local postrgres databases. Until now i succeeded to connect to the same databases using jdbc or working directly in PGAdmin, this error happens when i try to connect using pqxx library or from shell:
pqxx code:
#include <pqxx/connection.hxx>
int main(){
pqxx::connection conn("user=postgres port=5432 dbname=pqxx-test password=postgres");
return 0;
}
or from shell, as user postgres:
psql pqxx-test
both the cases raise this error:
could not connect to server: No such file or directory Is the server
running locally and accepting connections on Unix domain socket
"/var/run/postgresql/.s.PGSQL.5432"
Searching for the solution i think i understood i have to edit pq_hba.conf and postgresql.conf files in order to connect in these ways, but in pg_hba.conf is already set:
local all all md5
and in postgresql.conf
listen_addresses='*'
And by the way, i'm not even able to edit these files because of a problem with the viminfo, but maybe this is another problem..
Can anyone help me?
edit:
using PostgreSQL 9.6.2
on Ubuntu 14.04
edit:
as postgres user, if i ask for the postgre version using:
psql -V
the result is 9.6.2
but looking at the file system hierarchy, all conf file are inside this folder
/opt/PostreSQL/9.4/data/
can that be the problem?
You seem to have a mix of client-side postgresql 9.6 configured for the ubuntu FS layout and a postgresql server 9.4 presumably downloaded from EntrepriseDB (and installed under /opt/PostgreSQL) using its own layout.
Assuming that the postgresql is running, the simplest solution is to add host=localhost to your connection string, so that it will use a TCP connection instead of the Unix domain socket /var/run/postgresql/.s.PGSQL.5432 that does not exist because of the mismatch.
I am trying to get a copy of Openbravo on Ubuntu for development. I am following the official guide and I get stuck by a Postgres error.
I have successfully downloaded the source code through the mercurial commands. ant setup also worked for me.
When I run the Wizard I write this information.
The problem comes when I run ant install.source:
BUILD FAILED
/home/User/openbravo/build.xml:734: The following error occurred while executing this line:
/home/User/openbravo/src-db/database/build-create.xml:50: The following error occurred while executing this line:
/home/marcguilera/openbravo/src-db/database/build-create.xml:77: org.postgresql.util.PSQLException: Connection refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:136)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)
at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:125)
at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:30)
The stacktrace is longer.
I)
First we need to change the PostgreSQL postgres user password else we will not be able to access the server. As the “postgres” Linux user, we will execute the psql commands below.
In a terminal, type:
$ sudo -u postgres psql postgres
Set a password for the "postgres" database role using the command:
\password postgres
II) Create database
To create the first database, which we will call leo, simply type:
sudo -u postgres createdb leo
III) install Server Instrumentation (for PgAdmin) for Postgresql 9.1
PgAdmin requires the installation of an add-on for full functionality. The "adminpack" addon, which it calls Server Instrumentation, is part of postgresql-contrib, so you must install that package.
Then to activate the extension,
For "Postgresql 9.1"+ install the adminpack "extension" in the "postgres" database:
$ sudo -u postgres psql
then
CREATE EXTENSION adminpack;
IV) Using pgAdmin III GUI
To get an idea of what PostgreSQL can do, you may start by firing up a graphical client. In a terminal type :
pgadmin3
You will be presented with the pgAdmin III interface.
* Click on the "Add a connection to a server" button (top left).
In the new dialog:
enter the address **127.0.0.1**
host is **jdbc:postgresql://localhost:5432/postgres**
the default database ("leo" in the example above)
your username ("postgres") and your password.
One more step is required in order to allow pgAdmin III to connect to the server, and that is to edit pg_hba.conf file and change the authentication method from peer to md5 (Will not work if you have not set the password.):
sudo nano /etc/postgresql/9.1/main/pg_hba.conf
and change the line
# Database administrative login by Unix domain socket
local all postgres peer
to
# Database administrative login by Unix domain socket
local all postgres md5
Now you should reload the server configuration changes and connect pgAdmin III to your PostgreSQL database server.
sudo /etc/init.d/postgresql reload
With this GUI you may start creating and managing databases, query the database, execute SQl etc.
https://help.ubuntu.com/community/PostgreSQL
v) Run openbravo with postgres
Just adjust the db name, user name and the passwords.
Hope that helps.
I'm going crazy with postgresql (9.1) installation on my server (debian) i have rent on gandi.net !
I did the aptitude get-install postgresql postgresql-client command.
I'm having this error when trying to execute psql command.
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
I've been searching on the web. And maybe the servers are not running. I don't know how to check and how to launch them.
My postgres command doesn't work either (command not found).
Any idea?
The database engine is not running.
service postgresql start
or
/etc/init.d/postgresql start
to start the engine. I don't remember though if debian initializes the data dir automatically.
After I lost all the data on my computer (had to have everything erased by the Apple store), I installed postgres on my Mac using Homebrew with the command brew install postgres. I then started the server (with confirmation that the server was started) and tried to create a database for a Sinatra project that uses postgres, using the command
createdb db_development
However, I got the following error:
createdb: could not connect to database postgres: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"?
After searching online, I discovered that I might have to run the following initdb command
initdb /usr/local/var/postgres
but when I did it, I got this message
initdb /usr/local/var/postgres
The files belonging to this database system will be owned by user "braindead".
This user must also own the server process.
The database cluster will be initialized with locale "en_CA.UTF-8".
The default database encoding has accordingly been set to "UTF8".
The default text search configuration will be set to "english".
Data page checksums are disabled.
initdb: directory "/usr/local/var/postgres" exists but is not empty
If you want to create a new database system, either remove or empty
the directory "/usr/local/var/postgres" or run initdb
with an argument other than "/usr/local/var/postgres".
So, why might postgres have confirmed the server had started at the same time I got this error could not connect to database postgres: could not connect to server: No such file or directory, and how could I fix this?
the READ.me for the project said
bundle install
createdb db_development
rake db:migrate
It either tries to connect to the postgres that comes with MacOS or PG environment variables are not set.
Try:
createdb -h localhost db_development
these are postgres environment variables for postgres. Also PostgresApp is a very convenient way to use Postgresql on Mac
Postgres has a "unix_socket_directory" setting located in postgresql.conf
Please verify that this setting exists and that the directory itself exists, then restart your server. If it doesn't exist, set it to something like /var/run (or another directory that exists) and restart the server.