From: Achilleas Mantzios <achill@matrix.gatewaynet.com>
To: pgsql-admin@lists.postgresql.org
Subject: Re: [EXTERNAL] Re: Limits user connection in pgbouncer
Date: Wed, 15 Dec 2021 11:28:28 +0200
Message-ID: <ec4eeb46-990e-8858-8eee-6478a8b41825@matrix.gatewaynet.com> (raw)
In-Reply-To: <CALfOM6Ln2qn8EWpD60bXWFypVuJRKKUVpw4nwyKxc2RP=ObkAg@mail.gmail.com>
References: <CALfOM6JUgfknBvP7q1uB=bSzFA0ARWWBRhSTvsk_yw+tnzKykg@mail.gmail.com>
<5B05AAB3-8FAB-45E2-ABE5-277E4C0902E8@sqlexec.com>
<CALfOM6Ln2qn8EWpD60bXWFypVuJRKKUVpw4nwyKxc2RP=ObkAg@mail.gmail.com>
On 14/12/21 6:25 μ.μ., Daulat wrote:
> still i am able to login more than 2 connections after making changes under the database section .
> [databases]
>
> db1 = host=localhost port=5432 dbname=db1 pool_mode = transaction pool_size=2 max_db_connections=2 user=user1
>
> Thanks
The point with pgbouncer is to map N user connections to n DB connections where N >> n. So pgbouncer will allow up to max_client_conn in total, but every user (user1) will have max 2 real DB
connections to this pgbouncer db (db1).
Makes sense?
>
> On Tue, Dec 14, 2021 at 7:16 PM Michaeldba@sqlexec.com <mailto:Michaeldba@sqlexec.com> <Michaeldba@sqlexec.com <mailto:Michaeldba@sqlexec.com>> wrote:
>
> Do it under the databases section
>
> Sent from my iPad
>
>> On Dec 14, 2021, at 2:28 AM, Daulat <daulat.dba@gmail.com <mailto:daulat.dba@gmail.com>> wrote:
>>
>>
>> Hi Michael ,
>>
>> I have tried by setting the below entry under the users section but still I am able to make more than 2 connections. Please suggest what I am missing here ?
>>
>> [users]
>> user1 = pool_mode=transaction max_user_connections=2
>>
>> Here are my other details:
>>
>> [databases]
>> db1 = host=localhost dbname=db1
>>
>> logfile = /var/log/pgbouncer/pgbouncer.log
>> pidfile = /var/run/pgbouncer/pgbouncer.pid
>> listen_addr = *
>> listen_port = 6432
>> auth_type = md5
>> auth_file = /etc/pgbouncer/userlist.txt
>> admin_users = postgres
>> pool_mode = session
>> max_client_conn = 300
>> max_db_connections = 2
>> max_user_connections = 2
>>
>> On Mon, Dec 13, 2021 at 6:38 PM MichaelDBA <MichaelDBA@sqlexec.com <mailto:MichaelDBA@sqlexec.com>> wrote:
>>
>> Hi all,
>>
>> If you add the user to the database specification, then you can limit connections per user:
>> db1 = host=localhost dbname=db1 pool_size=2 user=myuser
>>
>> Regards,
>> Michael Vitale
>>
>>
>> Godfrin, Philippe E wrote on 12/13/2021 7:57 AM:
>>> On 13/12/21 10:05 π.μ., Daulat wrote:
>>>> Hello Team,
>>>> How can we limit the user to make a specific number of connections to the database?
>>> Just specify this in the db definition configuration :
>>>
>>> db1 = host=localhost dbname=db1 pool_size=2
>>>
>>> but it will apply to every user, so that every user's pool will have max 2 connections, not only user1.
>>>
>>> Alternatively you could set "ALTER ROLE .. CONNECTION LIMIT connlimit " for user1 individually.
>>
--
Achilleas Mantzios
DBA, Analyst, IT Lead
IT DEPT
Dynacom Tankers Mgmt
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Subject: Re: [EXTERNAL] Re: Limits user connection in pgbouncer
In-Reply-To: <ec4eeb46-990e-8858-8eee-6478a8b41825@matrix.gatewaynet.com>
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