Find the Port a Connection is Using

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Find the Port a Connection is Using

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MG-148046

Posted Thursday, July 08, 2010 6:37 AM

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Twinsoft SME (7/7/2010)

SQL Server should only be using 1 open port? w00t

Actually - Microsoft recommends multiple ports to help balance the "listening" load on busy servers.

From http://support.microsoft.com/kb/294453 - "To increase the performance of the SQL Server server to simultaneously process more connection requests, additional TCP ports to listen on can be added".

MG

"There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies."
Tony Hoare

"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.

Post #949244

BIG1362000

Posted Friday, July 09, 2010 2:43 AM

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Hi,
I tried it on several 2005 databases. All of them returned 0 rows.
Is it normal ?
Thanks.

Post #949783

MG-148046

Posted Friday, July 09, 2010 5:57 AM

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BIG1362000 (7/9/2010)

Hi,
I tried it on several 2005 databases. All of them returned 0 rows.
Is it normal ?
Thanks.

In the script, I exclude port 1433 (WHERE c.local_tcp_port <> 1433) which is the default listener for SQL Server. You will get 0 rows in the result if you haven't got connections using a port other than the default.

MG

"There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies."
Tony Hoare

"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.

Post #949872