> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Chuck > Esterbrook > Sent: Sunday, November 09, 2003 1:11 PM > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: RE: [Webware-devel] MiddleKit & MySQLdb 0.9.2 problem > > > On Sun, 9 Nov 2003 01:56:40 -0800, Ben Parker wrote: > > FWIW, if you close the connection before reassigning the variable > > to a new connection, your test script succeeds on my system (RedHat > > 7.3, MySQLdb 0.9.2, mysql 4.0.13-standard, python 2.2.3). Just add > > "conn.close()" at the end of the body of the for loop. > > > > It seems like the __del__ method isn't being called when the conn > > variable is reassigned to the new connection. It could be that > > MySQLdb keeps an internal reference to the connection so the > > reference count does drop to 0 when the conn variable is > ^ not > > reassigned. I have not reviewed the MySQLdb code so that's only a > > guess. > > > > We have had a bunch of issues with memory leaks due to unclosed db > > connections using MySQLdb 0.9.2. It's now strict policy in code > > reviews to make sure all db connections and cursors are explicitly > > closed using <connection>.close(). > > In my real application, the method that creates the connection > lives in a library and returns the connection so that it can be > optionally reused. So I don't know if there is a straightforward > fix in my situation. For now, I'm using 0.9.1. > > > -Chuck > -- > http://ChuckEsterbrook.com/ >
Argh!, apologies for the dropped word there. funny how 3 letters can change the whole meaning of a sentence... Yeah, it's tough having optionally reusable connections. You may want to consider having a pool for reusable connections and a separate method for opening a single-use connection which will be closed by the thread that opens it. - Ben ------------------------------------------------------- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ _______________________________________________ Webware-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/webware-devel
