Обсуждение: About persistent connections...
Hi to all ! Does anyone know how the postmaster handles persistent connections ? I use to use them with php, but yet I haven't upgraded to postgreSQL 7.2, I'm still on version 7.1.3, and it occured to me that when my users close their browser rather than click on the quit button I provided, their connection remains alive and is never closed. Is there a way to set it up so that such connections are closed after a certain amount of time of inactivity, as it is done with ftp for example ? Thanks by advance for your help. -- David BOURIAUD ---------------------------------------------------------- In a world without walls or fences, what use do we have for windows or gates ? ---------------------------------------------------------- ICQ#102562021
On Friday 01 March 2002 3:29 pm, David BOURIAUD wrote: > Hi to all ! > > Does anyone know how the postmaster handles persistent connections ? > I use to use them with php, but yet I haven't upgraded to postgreSQL 7.2, > I'm still on version 7.1.3, and it occured to me that when my users close > their browser rather than click on the quit button I provided, their > connection remains alive and is never closed. Is there a way to set it up > so that such connections are closed after a certain amount of time of > inactivity, as it is done with ftp for example ? Thanks by advance for your > help. Hi Dave, The whole point of a persistant connection is that it doesn't close. HTTP is completely stateless and unless you do clever stuff like session management, every visit to the site is totally seperate. The connection process for Pg is slow, and the point of persistent connections is to get round this. If you are using persistent connections, then the user clicking quit will make no difference anyway. The only way to close the connection is to either restart the web server, or restart Postmaster. As a site note, it would be nice to be able to set a timeout for a persistant connection so that periodically the connection is closed, and a new clean connection made on request. -- Gary Stainburn This email does not contain private or confidential material as it may be snooped on by interested government parties for unknown and undisclosed purposes - Regulation of Investigatory Powers Act, 2000
David, > Does anyone know how the postmaster handles persistent connections ? Please read the archives of the PGSQL-PHP list. This issue has beendiscussed ad nauseum there. FYI, the PGSQL-SQL list is for advanced SQL questions, like discussionsof relational tree structures. If you're not surewhere to look foran answer, try the PGSQL-NOVICE list. -Josh
Hi Gary ! > Hi Dave, > > The whole point of a persistant connection is that it doesn't close. HTTP > is completely stateless and unless you do clever stuff like session > management, every visit to the site is totally seperate. The connection > process for Pg is slow, and the point of persistent connections is to get > round this. Sure, that's what I understood from the various docs I read ! > > If you are using persistent connections, then the user clicking quit will > make no difference anyway. The only way to close the connection is to > either restart the web server, or restart Postmaster. Sure again, but the fact is that when I provide a "quit" button, it redirects the client towards a php page that closes the connection, erases the session file and tells him that he is now away, so, I tend to think that the connection is definetly closed afetr the reading of this page. > > As a site note, it would be nice to be able to set a timeout for a > persistant connection so that periodically the connection is closed, and a > new clean connection made on request. That would be great enough indeed ! As a mater of fact, I didn't suspect the existence of pgsql-php list, as suggests Josh in reply of my previous mail, and I'll subscribe to this list right now to make out what's related to this. Thanks anyway for your concern. -- David BOURIAUD ---------------------------------------------------------- In a world without walls or fences, what use do we have for windows or gates ? ---------------------------------------------------------- ICQ#102562021