From: Tom Lane <tgl@sss.pgh.pa.us>
To: Mladen Gogala <gogala.mladen@gmail.com>
Cc: Pgsql Performance <pgsql-performance@lists.postgresql.org>
Subject: Re: XA transactions much slower on 14.2 than on 13.5
Date: Fri, 04 Mar 2022 21:44:25 -0500
Message-ID: <4007944.1646448265@sss.pgh.pa.us> (raw)
In-Reply-To: <b6c413ee-19a4-f3a8-9772-210049c22369@gmail.com>
References: <b6c413ee-19a4-f3a8-9772-210049c22369@gmail.com>
Mladen Gogala <gogala.mladen@gmail.com> writes:
> My boss asked me to upgrade one of the development databases from 13.5
> --> 14.2. One thing that we've noticed right away is that XA
> transactions (2-phase commit) are much slower on 14.2 than on 13.5. Were
> there any significant changes to the XA protocol in the version 14? Did
> anybody else encountered this problem?
There were a bunch of changes around the 2PC code to support logical
replication of 2PC transactions, but I don't think they should have
made for any particular performance difference in non-replicated
servers. Can you put together a self-contained test case that
demonstrates what you're seeing?
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, gogala.mladen@gmail.com, pgsql-performance@lists.postgresql.org
Subject: Re: XA transactions much slower on 14.2 than on 13.5
In-Reply-To: <4007944.1646448265@sss.pgh.pa.us>
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