Re: Need help in performance tuning.

От: Mark Kirkwood
Тема: Re: Need help in performance tuning.
Дата: ,
Msg-id: 4C37C678.1030606@catalyst.net.nz
(см: обсуждение, исходный текст)
Ответ на: Re: Need help in performance tuning.  (Brad Nicholson)
Список: pgsql-performance

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Need help in performance tuning.  (Harpreet singh Wadhwa, )
 Re: Need help in performance tuning.  ("Kevin Grittner", )
 Re: Need help in performance tuning.  (Craig Ringer, )
  Re: Need help in performance tuning.  (Samuel Gendler, )
   Re: Need help in performance tuning.  (Tom Lane, )
    Re: Need help in performance tuning.  (Craig Ringer, )
     Re: Need help in performance tuning.  (Harpreet singh Wadhwa, )
     Re: Need help in performance tuning.  (Craig Ringer, )
     Re: Need help in performance tuning.  (Harpreet singh Wadhwa, )
      Re: Need help in performance tuning.  ("Jorge Montero", )
     Re: Need help in performance tuning.  (Bruce Momjian, )
    Re: Need help in performance tuning.  (Brad Nicholson, )
     Re: Need help in performance tuning.  ("Kevin Grittner", )
      Re: Need help in performance tuning.  (Matthew Wakeling, )
       Re: Need help in performance tuning.  ("Kevin Grittner", )
        Re: Need help in performance tuning.  (Matthew Wakeling, )
         Re: Need help in performance tuning.  ("Kevin Grittner", )
          Re: Need help in performance tuning.  ("Jorge Montero", )
           Re: Need help in performance tuning.  ("Kevin Grittner", )
         Re: Need help in performance tuning.  (Greg Smith, )
          Re: Need help in performance tuning.  ("Kevin Grittner", )
           Re: Pooling in Core WAS: Need help in performance tuning.  (Josh Berkus, )
            Re: Pooling in Core WAS: Need help in performance tuning.  (Craig Ringer, )
             Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
              Re: Pooling in Core WAS: Need help in performance tuning.  (Josh Berkus, )
               Re: Pooling in Core WAS: Need help in performance tuning.  (Tom Lane, )
                Re: Pooling in Core WAS: Need help in performance tuning.  (Matthew Wakeling, )
                 Re: Pooling in Core WAS: Need help in performance tuning.  (Craig Ringer, )
                  Re: Pooling in Core WAS: Need help in performance tuning.  ("Kevin Grittner", )
                   Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Greg Smith, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )
                       Re: Pooling in Core WAS: Need help in performance tuning.  (Tatsuo Ishii, )
                        Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )
                         Re: Pooling in Core WAS: Need help in performance tuning.  (Tatsuo Ishii, )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                  Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                  Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                   Re: Pooling in Core WAS: Need help in performance tuning.  (Andres Freund, )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  (Tom Lane, )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                       Re: Pooling in Core WAS: Need help in performance tuning.  (Tom Lane, )
                        Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                         Re: Pooling in Core WAS: Need help in performance tuning.  (Tom Lane, )
                        Re: Pooling in Core WAS: Need help in performance tuning.  (Vitalii Tymchyshyn, )
                        Re: Pooling in Core WAS: Need help in performance tuning.  (Josh Berkus, )
                         Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                          Re: Pooling in Core WAS: Need help in performance tuning.  (Tom Lane, )
                           Re: Pooling in Core WAS: Need help in performance tuning.  (Andres Freund, )
                           Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                            Re: Pooling in Core WAS: Need help in performance tuning.  (Josh Berkus, )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Craig Ringer, )
                  Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                   Re: Pooling in Core WAS: Need help in performance tuning.  ("Joshua D. Drake", )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  ("Joshua D. Drake", )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  ("Joshua D. Drake", )
                   Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                       Re: Pooling in Core WAS: Need help in performance tuning.  (Andres Freund, )
                       Re: Pooling in Core WAS: Need help in performance tuning.  (Craig Ringer, )
                        Re: Pooling in Core WAS: Need help in performance tuning.  (Robert Haas, )
                   Re: Pooling in Core WAS: Need help in performance tuning.  (Scott Carey, )
                    Re: Pooling in Core WAS: Need help in performance tuning.  (Joshua Tolley, )
                     Re: Pooling in Core WAS: Need help in performance tuning.  (Greg Smith, )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Andres Freund, )
                      Re: Pooling in Core WAS: Need help in performance tuning.  (Craig Ringer, )
                       Re: Pooling in Core WAS: Need help in performance tuning.  (Dimitri Fontaine, )
                       Re: Pooling in Core WAS: Need help in performance tuning.  (Hannu Krosing, )
                   Re: Pooling in Core WAS: Need help in performance tuning.  ("Joshua D. Drake", )
                Re: Pooling in Core WAS: Need help in performance tuning.  (Dimitri Fontaine, )
                 Re: Pooling in Core WAS: Need help in performance tuning.  (Magnus Hagander, )
             Re: Pooling in Core WAS: Need help in performance tuning.  (Scott Carey, )
            Re: Pooling in Core WAS: Need help in performance tuning.  (Samuel Gendler, )
          Re: Need help in performance tuning.  (Jesper Krogh, )
           Re: Need help in performance tuning.  (Greg Smith, )
            Re: Need help in performance tuning.  ("Pierre C", )
     Re: Need help in performance tuning.  (Mark Kirkwood, )
    Re: Need help in performance tuning.  (Robert Haas, )
    Re: Need help in performance tuning.  (Hannu Krosing, )
     Re: Need help in performance tuning.  (Scott Marlowe, )
      Re: Need help in performance tuning.  ("Kevin Grittner", )
       Re: Need help in performance tuning.  (Hannu Krosing, )
 Re: Pooling in Core WAS: Need help in performance tuning.  (Rajesh Kumar Mallah, )

On 10/07/10 00:56, Brad Nicholson wrote:
> On Fri, 2010-07-09 at 00:42 -0400, Tom Lane wrote:
>
>>
>> Perhaps not, but there's no obvious benefit either.  Since there's
>> More Than One Way To Do It, it seems more practical to keep that as a
>> separate problem that can be solved by a choice of add-on packages.
>>
> This sounds similar to the approach to taken with Replication for years
> before being moved into core.
>
> Just like replication, pooling has different approaches.  I do think
> that in both cases, having a solution that works, easily, out of the
> "box" will meet the needs of most users.
>
> There is also the issue of perception/adoption here as well.  One of my
> colleagues mentioned that at PG East that he repeatedly heard people
> talking (negatively) about the over reliance on add-on packages to deal
> with core DB functionality.
>
>

It would be interesting to know more about what they thought an 'over
reliance' was and which packages they meant.

While clearly in the case of replication something needed to be done to
make it better and easier, it is not obvious that the situation with
connection pools is analogous. For instance we make extensive use of
PgBouncer, and it seems to do the job fine and is ridiculously easy to
install and setup. So would having (something like) this in core be an
improvement? Clearly if the 'in core' product is better then it is
desirable... similarly if the packaged product is better... well let's
have that then!

I've certainly observed a 'fear of package installation' on the part of
some folk, which is often a hangover from the 'Big IT shop' mentality
where it requires blood signatures and child sacrifice to get anything
new installed.

regards

Mark

P.s Also note that Database Vendors like pooling integrated in the core
of *their* product because it is another thing to charge a license for.
Unfortunately this can also become an entrenched mentality of 'must be
in core' on the part of consultants etc!


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Сообщение: Re: Need help in performance tuning.