[GENERAL] Postres.exe Processes Hang
Hi, I am using the npgsql postgres data adaptor in a C# ASP.NET application. Each time the site establishes a new connection to the database a postgres.exe process is started. For some reason this process is not removed when the connection is closed. Any help would be greatly appreciated. Thanks, Kim Kim Robinson*Geomatics Consultant B. Geom (Hons) P Please consider the environment before printing my email This message and any attachments may contain confidential or privileged information, and are intended solely for the named recipient(s). If you are not a named recipient of this message, you are hereby notified that you must not use, disseminate, copy or take any action in reliance on this message or any part of it. If you have received this message in error, please notify Hydro Tasmania immediately via mailto:[EMAIL PROTECTED] Unless otherwise specified, any personal views and opinions expressed herein are purely those of the author and do not represent the views of Hydro Tasmania.
Re: [GENERAL] Postres.exe Processes Hang
Kim Robinson wrote: Hi, I am using the npgsql postgres data adaptor in a C# ASP.NET application. Each time the site establishes a new connection to the database a postgres.exe process is started. For some reason this process is not removed when the connection is closed. Any help would be greatly appreciated. Are you by any chance using some connection pooling that keeps it alive? I don't remember what the default is in npgsql, but a lot of frameworks have connection pooling enabled by default. //Magnus -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Postres.exe Processes Hang
On 8/18/08, Magnus Hagander Hi, all! As Magnus said, this is caused by the fact Npgsql does connection pool by default. You can change that by passing pooling=false in your connection string. You can get more info at manual.npgsql.org I hope it helps [EMAIL PROTECTED] wrote: Kim Robinson wrote: Hi, I am using the npgsql postgres data adaptor in a C# ASP.NET application. Each time the site establishes a new connection to the database a postgres.exe process is started. For some reason this process is not removed when the connection is closed. Any help would be greatly appreciated. Are you by any chance using some connection pooling that keeps it alive? I don't remember what the default is in npgsql, but a lot of frameworks have connection pooling enabled by default. //Magnus -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general -- Regards, Francisco Figueiredo Jr. http://fxjr.blogspot.com http://www.npgsql.org -- Regards, Francisco Figueiredo Jr. http://fxjr.blogspot.com http://www.npgsql.org -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Postres.exe Processes Hang
Great thanks all. Can you give me any indication of the performance implications of setting pooling=false? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Francisco Figueiredo Jr. Sent: Tuesday, 19 August 2008 3:48 AM To: Magnus Hagander Cc: Kim Robinson; pgsql-general@postgresql.org Subject: Re: [GENERAL] Postres.exe Processes Hang On 8/18/08, Magnus Hagander Hi, all! As Magnus said, this is caused by the fact Npgsql does connection pool by default. You can change that by passing pooling=false in your connection string. You can get more info at manual.npgsql.org I hope it helps [EMAIL PROTECTED] wrote: Kim Robinson wrote: Hi, I am using the npgsql postgres data adaptor in a C# ASP.NET application. Each time the site establishes a new connection to the database a postgres.exe process is started. For some reason this process is not removed when the connection is closed. Any help would be greatly appreciated. Are you by any chance using some connection pooling that keeps it alive? I don't remember what the default is in npgsql, but a lot of frameworks have connection pooling enabled by default. //Magnus -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general -- Regards, Francisco Figueiredo Jr. http://fxjr.blogspot.com http://www.npgsql.org -- Regards, Francisco Figueiredo Jr. http://fxjr.blogspot.com http://www.npgsql.org -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Postres.exe Processes Hang
On Mon, Aug 18, 2008 at 9:59 PM, Kim Robinson [EMAIL PROTECTED] wrote: Great thanks all. Can you give me any indication of the performance implications of setting pooling=false? Yeap. All the time you would need to connect to postgresql you will have the overhead of tcp connection establishment as well as the overhead of postgresql authentication. I don't know how much this is in time, but you can give it a try with some tests which opens a connection, do a simple query like select version() and close it. I think you could see something like 2 or 3 times slower than with the pool enabled. -- Regards, Francisco Figueiredo Jr. http://fxjr.blogspot.com http://www.npgsql.org -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
