| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Mladen Gogala <gogala(dot)mladen(at)gmail(dot)com> |
| Cc: | Pgsql Performance <pgsql-performance(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: XA transactions much slower on 14.2 than on 13.5 |
| Date: | 2022-03-05 02:44:25 |
| Message-ID: | 4007944.1646448265@sss.pgh.pa.us |
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| Lists: | pgsql-performance |
Mladen Gogala <gogala(dot)mladen(at)gmail(dot)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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