Postgres listens on random port

[Kal]

Hi

I have a scenario in which postgres listens on a random port different from
the one which was specified in pg_ctl start command.

This occurs in windows. When postgres is started on port 5460, the logs
denote that postgres is started on 5460. But the database actually listens
on some random port like 20011

When the same postgres is started as a service,it listens on the intended
port.

I have tried with both normal and admin users.

Any suggestions on this behaviour will be helpful.


Regards
Kal

Re: Postgres listens on random port

[Kal]

On Tue, 5 Nov 2024 at 7:42 PM, Greg Sabino Mullane 
wrote:

> Start by seeing where the port is actually being set by running this:
>
> select setting, source, sourcefile, sourceline from pg_settings where name
> = 'port';
> Cheers,
> Greg
>
> Hi Greg,

The query output states the source as command line. Event the port value
output from show port is same as given in pg_ctl command.

But the database is listening on some other random port.


Regards
Kal

Re: Postgres listens on random port

[Kal]

Hi

The netstat command did not reveal any entries on the intended port (say
5460). The 5460 port was vacant, no processes were using it.
 I had to crawl through the postgres processes on task manager to find the
listening port.


Could this be due interference from other services? But the port 5460
remains unused.


Regards,
Kal

On Tue, 5 Nov 2024 at 7:57 PM, Saul Perdomo  wrote:

> " But the database actually listens on some random port like 20011"
>
> How exactly did you determine this?
>
> (If you used, say, netstat, can you share its output with us?)
>
> On Tue, Nov 5, 2024 at 8:46 AM Kal  wrote:
>
>> Hi
>>
>> I have a scenario in which postgres listens on a random port different
>> from the one which was specified in pg_ctl start command.
>>
>> This occurs in windows. When postgres is started on port 5460, the logs
>> denote that postgres is started on 5460. But the database actually listens
>> on some random port like 20011
>>
>> When the same postgres is started as a service,it listens on the intended
>> port.
>>
>> I have tried with both normal and admin users.
>>
>> Any suggestions on this behaviour will be helpful.
>>
>>
>> Regards
>> Kal
>>
>