Re: Connection Pooling, a year later - Mailing list pgsql-hackers

From Lincoln Yeoh
Subject Re: Connection Pooling, a year later
Date
Msg-id 3.0.5.32.20011218191451.00869940@192.228.128.13
Whole thread Raw
In response to Re: Connection Pooling, a year later  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-hackers
At 10:57 PM 12/17/01 -0500, Bruce Momjian wrote:
>Yes, that is assuming you are using PHP.  If you are using something
>else, you connection pooling in there too.  All those client interfaces
>reimplementing connection pooling seems like a waste to me.

But trying to connect and reconnect to an RDBMS 100 times a sec sounds
broken (plus authentication etc).

I personally think the fix for that should be at the client side. At worst
it should be in an intermediate application (listener). Otherwise it's like
trying to turn a db server into a webserver, quite a bit of work there.

>> My concern is, and do you know, besides the memory used by idle postgres
>> processes, are there any performance reasons why connection pooling a fewer
>> number of processes, would perform better than a larger number of idle
>> persistent processes?
>> 
>> Unless it does, I would say that connection pooling is pointless.
>
>No, idle backends take minimal resources.

I'd personally will be happy with a large number of backends then. Probably
more deterministic having everything fully loaded to the max. 

Cheerio,
Link.



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