From: Ravi Krishna <srkrishna@outlook.com>
To: David Modica <davidmo@imaginesoftware.com>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: inserts take longer and longer
Date: Tue, 20 Nov 2018 16:52:01 +0000
Message-ID: <BYAPR01MB384810591FF49526B5FC486FB9D90@BYAPR01MB3848.prod.exchangelabs.com> (raw)
In-Reply-To: <9a645d6c8749483c90f5f109889ea8ce@imaginesoftware.com>
References: <9a645d6c8749483c90f5f109889ea8ce@imaginesoftware.com>
>
> we have a developer who is doing
> batch inserts 20 at a time and each subsequent batch is taking
> longer to the point where it is a critical problem. I recently changed
> the out of the box config to see if that would help but it hasn’t:
>
I recollect reading something few years ago, but not able to place my finger on the issue. IIRC it was something to do with the inserting session creating a HOT bloat because vaccum could not do anything on that live session. I will try to search for that post. But the symptoms were similar to yours. Initially good performance and then getting slower and slower.
Q: Is it straight insert or you do select or updates also along with insert.
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To: pgsql-admin@postgresql.org
Cc: srkrishna@outlook.com, davidmo@imaginesoftware.com
Subject: Re: inserts take longer and longer
In-Reply-To: <BYAPR01MB384810591FF49526B5FC486FB9D90@BYAPR01MB3848.prod.exchangelabs.com>
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