Bruce Momjian <[EMAIL PROTECTED]> writes:
>> Well, there are two different things here.  I agree that if an app
>> is going to use persistent connections, it should be the app's
>> responsibility to manage them.  But a per-database, as opposed to
>> installation-wide, limit on number of connections seems like a
>> reasonable idea.  Note that the limit would result in new connections
>> being rejected, not old ones being summarily cut.

> But then the app is going to keep trying to connect over and over unless
> it knows something about why it can't connect.

So?  If it hits the installation-wide limit, you'll have the same
problem; and at that point the (presumably runaway) app would have
sucked up all the connections, denying service to other apps using other
databases.  I think Marc's point here is to limit his exposure to
misbehavior of any one client app, in a database server that is serving
multiple clients using multiple databases.

It occurs to me that a per-user connection limit is going to be the next
thing he asks for ;-).  We could implement that too, if we wanted.
(Not sure whether PGPROC stores the user id, but it easily could.)

                        regards, tom lane

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