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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