From: Ron <ronljohnsonjr@gmail.com>
To: pgsql-admin@lists.postgresql.org
Subject: Re: Max tables in a cluster?
Date: Wed, 5 Apr 2023 02:20:50 -0500
Message-ID: <a7644ae4-a388-7cdc-e5dc-f3dca24e4a7f@gmail.com> (raw)
In-Reply-To: <18750398329.1002ca2ba316.8870907212977424118@zohocorp.com>
References: <18750398329.1002ca2ba316.8870907212977424118@zohocorp.com>
On 4/5/23 02:07, Karthik Krishnakumar wrote:
> Hi admins,
>
> Is there a limit to number of tables that a cluster can support?
https://www.postgresql.org/docs/13/limits.html> At the moment, one of my clusters has about 250k user tables (plus 150k
> toast tables) across a hundred schemas within a single database.
> My application team wants to double the number of schemas (and with it the
> tables)
> I am looking for both pros and cons of doing this and what tuning can help
> this cluster perform acceptably.
>
> My questions are
> 1. Is there a limit to number of tables a cluster can support effectively?
> 2. My guess is autovacuum would have to be tuned. Current gucs for this are
> max_autovacuum_workers = 6
> maintenance_work_mem = 1GB
> autovacuum_vacuum_scale_factor = 0.2
> autovacuum_vacuum_cost_delay = 20ms
>
> Are there any potential problems that I need to think about ?
>
> My machine specs are as below.
> RAM 256GB
> 32-core CPU
> 7TB SSD
>
> thanks
> karthik
>
--
Born in Arizona, moved to Babylonia.
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Subject: Re: Max tables in a cluster?
In-Reply-To: <a7644ae4-a388-7cdc-e5dc-f3dca24e4a7f@gmail.com>
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