[GENERAL] pg_restore to a port where nobody is listening?

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От Daniel Westermann
Тема [GENERAL] pg_restore to a port where nobody is listening?
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Msg-id 409717180.4468952.1482340943327.JavaMail.zimbra@dbi-services.com
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Ответы Re: [GENERAL] pg_restore to a port where nobody is listening?
Re: [GENERAL] pg_restore to a port where nobody is listening?
Re: [GENERAL] pg_restore to a port where nobody is listening?
Re: [GENERAL] pg_restore to a port where nobody is listening?
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Hi all,

I have a PostgreSQL 9.5.4 and a PostgreSQL 9.6.1 instance installed on the same host. I dump the 9.5.4 instance with:

pg_dump -h localhost -p 5438 -C -c -F d -j 2 -f /var/tmp/exp/ test

.. which runs fine. I get the output as expected:
postgres@pgbox:/home/postgres/ [PG954] ls /var/tmp/exp/
3016.dat.gz  3017.dat.gz  toc.dat

Source instance:
(postgres@[local]:5438) [postgres] > show port;
 port
------
 5438
(1 row)

Time: 0.328 ms
(postgres@[local]:5438) [postgres] > select version();
-[ RECORD 1 ]-----------------------------------------------------------------------------------------------------------------------
version | PostgreSQL 9.5.4 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4), 64-bit

Now I try to import into 9.6.1 => the instance is not running but the environment is  set:

postgres@pgbox:/home/postgres/ [PG961] netstat -na | grep 5439
postgres@pgbox:/home/postgres/ [PG961] echo $PGPORT
5439

postgres@pgbox:/home/postgres/ [PG961] pg_restore -V
pg_restore (PostgreSQL) 9.6.1
postgres@pgbox:/home/postgres/ [PG961] pg_restore -h localhost -p 5439 -F d -C -j 2 /var/tmp/exp/

This runs fine but where does it connect to? Nothing is listening on port 5439.

postgres@pgbox:/home/postgres/ [PG961] netstat -tulpen
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode      PID/Program name    
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      0          15929      -                   
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      0          17460      -                   
tcp        0      0 0.0.0.0:5438            0.0.0.0:*               LISTEN      1000       18923      2829/postgres       
tcp6       0      0 :::22                   :::*                    LISTEN      0          15938      -                   
tcp6       0      0 ::1:25                  :::*                    LISTEN      0          17461      -                   
tcp6       0      0 :::5438                 :::*                    LISTEN      1000       18924      2829/postgres       
udp        0      0 0.0.0.0:68              0.0.0.0:*                           0          14940      -                   
udp        0      0 0.0.0.0:49566           0.0.0.0:*                           0          14929      -                   
udp6       0      0 :::40307                :::*                                0          14930      -                   

postgres@pgbox:/home/postgres/ [PG961] psql -h localhost -p 5439
psql: could not connect to server: Connection refused
    Is the server running on host "localhost" (::1) and accepting
    TCP/IP connections on port 5439?
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 5439?

What do I miss? I can give any port to pg_restore and it just seems to be fine. Even this seems to working (the copy from stdin is displayed on the screen):
postgres@pgbox:/home/postgres/ [PG961] pg_restore -h localhost -p ===6666 -F d -C /var/tmp/exp/


Thanks
Daniel

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