Postgresql: could not connect to server: No such file or directory

Question

Ubuntu 14 I install postgresql server on remote server(digitalocean).

Run command psql and display errors:

postgres@ubuntu-512mb-fra1-01:/home/deploy$ psql
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
    LANGUAGE = (unset),
    LC_ALL = (unset),
    LC_PAPER = "be_BY.UTF-8",
    LC_ADDRESS = "be_BY.UTF-8",
    LC_MONETARY = "be_BY.UTF-8",
    LC_NUMERIC = "be_BY.UTF-8",
    LC_TELEPHONE = "be_BY.UTF-8",
    LC_IDENTIFICATION = "be_BY.UTF-8",
    LC_MEASUREMENT = "be_BY.UTF-8",
    LC_TIME = "be_BY.UTF-8",
    LC_NAME = "be_BY.UTF-8",
    LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
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 want reload postgresql server, run command service postgresql start --force

* No PostgreSQL clusters exist; see "man pg_createcluster" 

I think problem with locale setting. But how solve this error?

Answer 1

locale warning won't prevent psql from connecting. Read https://askubuntu.com/questions/162391/how-do-i-fix-my-locale-issue on this.

No PostgreSQL clusters exist

means that you probably did not create a cluster. Run smth like pg_createcluster -p 2345 9.5 test to create a test cluster, or better read man pg_createcluster as Ubuntu suggested

Answer 2

Walk this way

• Find the cluster

   pg_lsclusters 

• Drop your cluster (Use the information from above)

   pg_dropcluster --stop 9.3 main 

• Create the cluster anew

   pg_createcluster --locale en_US.UTF-8 --start 9.3 main 

• Login to postgres

   sudo -u postgres psql 

• And check locales

   show LC_COLLATE; show LC_CTYPE; 

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