At 01:13 PM 3/4/2002 , you wrote:
>On Mon, Mar 04, 2002 at 11:19:54AM +0100, Takacs Istvan wrote:
> > Hi,
> >
> > We use mysql 1.23.47 as a database for our PHP based accounting
> > system. We use mysql_pconnect() to get a connection to the DB.
> > This morning we couldn't log in because mysql sent back a 'too many
> > open connection!' (or someting like that) error message. If I use
> > the command SHOW PROCESSLIST than I can see many 'Sleep' processes.
> > If I try to kill some processes by KILL <processnumber> than newer
> > processes appear in the list.
>
>Sounds like you need to decrease the amount of time that idle
>connections stay around in the server before they are disconnected.
>
> > Is there any way to kill all of the hanging processes?
>
>Best not to get them in the first place!
>
> > And why are so many processes if we use mysql_pconnect() which uses
> > the same connection what the PHP user opened before?
>
>mysql_pconnect() tells PHP *not* to close the connection when a page
>completes. That means there will be more open connections to the
>database server. If you have a sufficient number of Apache (or
>whatever) children, you can easily over-run MySQL.
>
>Jeremy
Jeremy,
PMFJI, but has anyone done any testing to see if persistent
connections with MySQL and PHP is actually faster in practice?
Brent
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