| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com> |
| Cc: | Sergei Kornilov <sk(at)zsrv(dot)org>, Mahendra Singh <mahi6run(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Robert Haas <robertmhaas(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Amit Langote <langote_amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, David Steele <david(at)pgmasters(dot)net>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] Block level parallel vacuum |
| Date: | 2019-12-03 10:56:49 |
| Message-ID: | CAA4eK1+7KWuPue0Pe=oTywT-V2dSNeJxbPeyWp+ZuuJSoAdcSQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Dec 3, 2019 at 4:25 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> Few other things, I would like you to consider.
> 1. I think disable_parallel_leader_participation related code can be
> extracted into a separate patch as it is mainly a debug/test aid. You can
> also fix the problem reported by Mahendra in that context.
>
> 2. I think if we cam somehow disallow very small indexes to use parallel
> workers, then it will be better. Can we use min_parallel_index_scan_size
> to decide whether a particular index can participate in a parallel vacuum?
>
Forgot one minor point. Please run pgindent on all the patches.
--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com
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