Re: New server setup

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Set it to use session.  I had a similar issue having moved one of the components of our app to use transactions, which introduced an undesired behavior.


-----Original Message-----
From: pgsql-performance-owner@xxxxxxxxxxxxxx [mailto:pgsql-performance-owner@xxxxxxxxxxxxxx] On Behalf Of Niels Kristian Schjødt
Sent: Tuesday, March 05, 2013 10:12 AM
To: Kevin Grittner
Cc: Craig James; pgsql-performance@xxxxxxxxxxxxxx
Subject: Re:  New server setup

Thanks, that was actually what I just ended up doing yesterday. Any suggestion how to tune pgbouncer?

BTW, I have just bumped into an issue that caused me to disable pgbouncer again actually. My web application is querying the database with a per request based SEARCH_PATH. This is because I use schemas to provide country based separation of my data (e.g. english, german, danish data in different schemas). I have pgbouncer setup to have a transactional behavior (pool_mode = transaction) - however some of my colleagues complained that it sometimes didn't return data from the right schema set in the SEARCH_PATH - you wouldn't by chance have any idea what is going wrong wouldn't you?

#################### pgbouncer.ini
[databases]
production =

[pgbouncer]

logfile = /var/log/pgbouncer/pgbouncer.log pidfile = /var/run/pgbouncer/pgbouncer.pid listen_addr = localhost listen_port = 6432 unix_socket_dir = /var/run/postgresql auth_type = md5 auth_file = /etc/pgbouncer/userlist.txt admin_users = postgres pool_mode = transaction server_reset_query = DISCARD ALL max_client_conn = 500 default_pool_size = 20 reserve_pool_size = 5 reserve_pool_timeout = 10 #####################


Den 05/03/2013 kl. 17.34 skrev Kevin Grittner <kgrittn@xxxxxxxxx>:

> Niels Kristian Schjødt <nielskristian@xxxxxxxxxxxxx> wrote:
> 
>> So my question is, should I also get something like pgpool2 setup at 
>> the same time? Is it, from your experience, likely to increase my 
>> throughput a lot more, if I had a connection pool of eg. 20 
>> connections, instead of 300 concurrent ones directly?
> 
> In my experience, it can make a big difference.  If you are just using 
> the pooler for this reason, and don't need any of the other features 
> of pgpool, I suggest pgbouncer.  It is a simpler, more lightweight 
> tool.
> 
> --
> Kevin Grittner
> EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL 
> Company



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