[Pgpool-general] Pgpool 3.1 errors

Olivier NOEL nolivfr at gmail.com
Tue Oct 4 12:36:11 UTC 2011


2011/10/4 Olivier NOEL <nolivfr at gmail.com>:
> 2011/10/4 Olivier NOEL <nolivfr at gmail.com>:
>
>>> The conf file you're using is a 3.0 one. I hope you don't use that for
>>> 3.1, as it may not work at all.
>>
>> The conf file is essentially the same, no real differences, with the
>> exception of backend_socket_dir, which is deprecated
>>
>>> Your num_init_children seems way too big. 1000... it means pgpool will
>>> launch 1000 subprocesses when it starts. Kinda crazy :) Moreover, with
>>> the max_pool at 8, it means pgpool can have 8000 connections to your
>>> PostgreSQL server. Have you really configured PostgreSQL with a
>>> max_connections of 8000?
>>
>> Each Postgresql have a max_connections of 1000 (we have above 600
>> connections per , we planned to have 8 servers. Actually max_pool is
>> at 3
>>
>>> On the load balancing configuration, you didn't deny load balancing of
>>> nextval and setval, which is obviously an error.
>>
>> I use white_function_list for that, I have about 450 functions that
>> are DDL/DML requests, so I only list the read only functions
>>
>>> On your backend configuration, you set backend_hostname0, and then go
>>> directly to backend_hostname7. It may be an issue. Try to set them in
>>> order (O, then 1, then 2). Not sure it has a real value, I never tried
>>> that, but it works for me when they are set in order, and without hole.
>>
>> It doesn't seems to disturb pgpool, but it was having problem starting
>> without a node 0.
>
> Ok, I tried with a 3.1 config file, and I have this error :
>
> 2011-10-04 13:35:44 ERROR: pid 1251: add_to_patterns: invalid regex
> pattern: ^getuseruid$
>
> config :
>
> white_function_list = 'getuseruid'
>                                   # Comma separated list of function names
>                                   # that don't write to database
>                                   # Regexp are accepted
> black_function_list = ''
>

The above error is on FreeBSD.

On Debian pgpool starts, on FreeBSD, pgpool won't start. Missing dependency?

Pgpool on both OS are compiled : one from sources (Debian) and one
from ports (FreeBSD).


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