| From: | Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com> |
|---|---|
| To: | "k(dot)jamison(at)fujitsu(dot)com" <k(dot)jamison(at)fujitsu(dot)com> |
| Cc: | Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Masahiro Ikeda <ikedamsh(at)oss(dot)nttdata(dot)com>, Zhihong Yu <zyu(at)yugabyte(dot)com>, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>, "tsunakawa(dot)takay(at)fujitsu(dot)com" <tsunakawa(dot)takay(at)fujitsu(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, "ashutosh(dot)bapat(dot)oss(at)gmail(dot)com" <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, "amit(dot)kapila16(at)gmail(dot)com" <amit(dot)kapila16(at)gmail(dot)com>, "m(dot)usama(at)gmail(dot)com" <m(dot)usama(at)gmail(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "sulamul(at)gmail(dot)com" <sulamul(at)gmail(dot)com>, "alvherre(at)2ndquadrant(dot)com" <alvherre(at)2ndquadrant(dot)com>, "thomas(dot)munro(at)gmail(dot)com" <thomas(dot)munro(at)gmail(dot)com>, "ildar(at)adjust(dot)com" <ildar(at)adjust(dot)com>, "horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp" <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, "chris(dot)travers(at)adjust(dot)com" <chris(dot)travers(at)adjust(dot)com>, "robertmhaas(at)gmail(dot)com" <robertmhaas(at)gmail(dot)com>, "ishii(at)sraoss(dot)co(dot)jp" <ishii(at)sraoss(dot)co(dot)jp> |
| Subject: | Re: Transactions involving multiple postgres foreign servers, take 2 |
| Date: | 2021-10-07 10:47:44 |
| Message-ID: | CAPmGK17uk7kOEoBudumx1-b+sn4=-4FioX+A_DAtf33P+TfLsQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi,
On Thu, Oct 7, 2021 at 1:29 PM k(dot)jamison(at)fujitsu(dot)com
<k(dot)jamison(at)fujitsu(dot)com> wrote:
> That said, if we're going to initially support it on postgres_fdw, which is simpler
> than the latest patches, we need to ensure that abnormalities and errors
> are properly handled and prove that commit performance can be improved,
> e.g. if we can commit not in serial but also possible in parallel.
If it's ok with you, I'd like to work on the performance issue. What
I have in mind is commit all remote transactions in parallel instead
of sequentially in the postgres_fdw transaction callback, as mentioned
above, but I think that would improve the performance even for
one-phase commit that we already have. Maybe I'm missing something,
though.
Best regards,
Etsuro Fujita
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