Francisco Figueiredo Jr. wrote:
Reilly, Andrew wrote:

Hi all,


Hi Reilly.

I've been experimenting with accessing a PostgreSQL database using Npgsql,
but have come across a problem.


Whenever I open a new NpgsqlConnection under the MS .NET runtime there is
always a short delay of a few seconds, presumably while the client
authenticates with the server. However, when the same program is run under
mono the delay is almost imperceptible. This is frustrating because I tend
to develop under VS.NET then distribute using mono.


I'm running mono 1.0.1 with Npgsql 0.6 and the server is PostgreSQL 7.4.3.
I've tried turning on logging support in Npgsql but it doesn't report
anything relevant: the log starts from when the connection is actually
established any everything works quickly after that. I've also tried
relaxing the authentication settings of the database but this has no effect.


Does anyone have any suggestions as to what the cause of the problem might
be?




Hi Reilly.

Mikko Korkalo sent me a message saying he is having the same problem as you are.
He said me one interesting information: the 0.5 doesn't have this problem.
I checked cvs and could see that there was a slightly change in the code which establishes the connection. In 0.5 I was checking the server address to see if it was in dot ip format and so I didn't do the name resolution.
In 0.6, I incorrectly changed this code and was doing the connection using directly the server address. So, when you pass the server name as ip address, you may be getting the delay because of the time spent trying to resolve this address.


Could you try the 0.5 version and check if it is faster for you?
If so, I will patch the current version with this fix.

Thanks in advance.

Regards,

Francisco Figueiredo Jr.
_______________________________________________
Mono-list maillist  -  [EMAIL PROTECTED]
http://lists.ximian.com/mailman/listinfo/mono-list

Reply via email to