Re: could not connect to server

On 10/15/2016 10:11 AM, Antonio Silva wrote:
> Hello
>
> I'm using postgres 9.5 on Ubuntu 16.04. I have worked with pg in my
> notebook for almost a month but today postgres did not connected. I
> tryed both PGAdmin and psql.

Did you do an apt-get upgrade in the interim?

>
> I also tried to login using my own user and postgres but I received the
> messages:
>
> Server doesn't listen
> The server doesn't accept connections: the connection library reports
> could not connect to server: Conexão recusada (connection refused) Is
> the server running on host "127.0.0.1" and accepting TCP/IP connections
> on port 5432?

This is indication that Postgres server is not running which is
confirmed by your pg_lsclusters output below.

>
> ~$ psql database
> WARNING: password file "/home/antonio/.pgpass" has group or world
> access; permissions should be u=rw (0600) or less
> psql: could not connect to server: Arquivo ou diretório não encontrado
> (File or directory not found)
>     Is the server running locally and accepting
>     connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
>
> $ pg_lsclusters
> Ver Cluster Port Status Owner    Data directory               Log file
> 9.5 main    5432 down   postgres /var/lib/postgresql/9.5/main
> /var/log/postgresql/postgresql-9.5-main.log
>
> It was the first time I received the warning "password file
> "/home/antonio/.pgpass" has group or world access; permissions should be
> u=rw (0600) or less" and I fixed it:
> -rw-------  1 antonio antonio      137 Set 30 18:50 .pgpass
>
> I had edited postgresql.conf and pg_hba.conf but this morning they were
> in their original configuration. So I edited again to:
>
> /etc/postgresql/9.5/main/postgresql.conf
>
> # - Connection Settings -
> listen_addresses = '*'
> port = 5432
>
> /etc/postgresql/9.5/main/pg_hba.conf
>
> # Database administrative login by Unix domain socket
> local   all             postgres                                md5
> # TYPE  DATABASE        USER            ADDRESS                 METHOD
> # "local" is for Unix domain socket connections only
> local   all             all                                     md5
> # IPv4 local connections:
> host    all             all             127.0.0.1/32
> <http://127.0.0.1/32>            md5
>
> I also restarted the server (/etc/init.d/postgresql restart) and the
> computer.

What does  pg_lsclusters show?

How did you try to connect?

>
> I really appreciate any guidance.
>
> All the best,
>
> Antônio Olinto
> São Paulo, Brasil


--
Adrian Klaver
adrian.klaver@aklaver.com