[Pgpool-general] Pgpool I vs Pgpool II

[Glyn Astill]

Hi takizo,



We are currently using Pgpool-II 2.3.3 and it has been really stable for us.  Unless you're after a specific feature in Pgpool-II 3.x you could perhaps try it?

So far I've had no luck with the patch posted by Yoshiyuki, even with that patch there is still a massive memory leak in 3.0.4.  It would appear that pool_proto_modules.c has lots commented out calls to free_parser(), many more than the single case that Yoshiyuki uncommented with his patch, so either there is a bit of a mess there that needs sorting out by someone who knows the overall logic, or the issue is elsewhere.

Glyn




>________________________________
>From: takizo <paulooi at takizo.com>
>To: Glyn Astill <glynastill at yahoo.co.uk>
>Cc: "pgpool-general at pgfoundry.org" <pgpool-general at pgfoundry.org>
>Sent: Thursday, 8 September 2011, 1:48
>Subject: Re: [Pgpool-general] Pgpool I vs Pgpool II
>
>
>Gyln, 
>
>
>Thanks. I happened to read through the thread after posted the mail. It seems like I have to stick with Pgpool I until the developer is free. 
>
>
>--
>takizo
>
>
>
>
>
>
>On Sep 7, 2011, at 10:53 PM, Glyn Astill wrote:
>
>Hi takizo,
>>
>>
>>
>>Yes this bug has been seen by numerous people on the list, Yoshiyuki Asaba has posted a patch, however there has been no response from the main Pgpool II developers.
>>
>>I did ask a few times, and also asked if we'd be better testing 3.1, but alas still no response.  I can only assume the devs are busy or otherwise indisposed.
>>
>>See the thread below for the patch.
>>
>>
>>
>>http://www.mail-archive.com/pgpool-general@pgfoundry.org/msg03141.html
>>
>>Glyn
>>
>>
>>
>>>________________________________
>>>From: takizo <paulooi at takizo.com>
>>>To: pgpool-general at pgfoundry.org
>>>Sent: Wednesday, 7 September 2011, 15:02
>>>Subject: [Pgpool-general] Pgpool I vs Pgpool II
>>>
>>>Hi all, 
>>>
>>>Today I have upgraded Pgpool I to Pgpool II. And I had to roll back to Pgpool I due to memory hunger issue. 
>>>
>>>My server is configured with 
>>>PostgreSQL 8.2, 
>>>running on FreeBSD 8.2
>>>Intel Xeon box with 4 CPUs with Quad Core, total of 16 cores
>>>Memory with 24GB
>>>
>>>* While running on Pgpool I
>>>I do no have
 memory hunger issue.  On postgresql.conf, I have max_connections=200 and shared_buffers=2GB. 
>>>Most of the time, I have 8GB memory in used and 10GB Free and some in cached. Everything run just fine and perfectly good. 
>>>
>>>* I tried upgraded to Pgpool II 
>>>Same config on postgresql.conf, when I started PgPool II (3.0.4), my active memory started increasing and it didn't drop at all. 
>>>I left the server running and after about 20 minutes, 20GB memory is in used, ended up it used swap memory because running out of memory. 
>>>
>>>I run a reload/restart on pgpool, I gained back 14GB of free memory, and slowly it started to taken up those freed memory in active memory after about 15-20 minutes. 
>>>I tried to bring down max_connections and shared_buffers value, and the memory doesn't stop taking up. It still slowly gaining all the memory it wants. 
>>>
>>>Has anyone having that problem as well? I hope I can find some answer here :) 
>>>Wanted
 to try out pgpool II performance but this problem is the stopper for now. 
>>>
>>>Hope to get feedback from gurus in the house.
>>>
>>>Thanks! 
>>>
>>>--
>>>takizo
>>>_______________________________________________
>>>Pgpool-general mailing list
>>>Pgpool-general at pgfoundry.org
>>>http://pgfoundry.org/mailman/listinfo/pgpool-general
>>>
>>>
>>>
>
>
>
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