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Re: increasing the default WAL segment size

Stephen Frost <sfrost@snowman.net>

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From: Stephen Frost <sfrost@snowman.net>
To: Robert Haas <robertmhaas@gmail.com>
Cc: David Steele <david@pgmasters.net>, Beena Emerson <memissemerson@gmail.com>, tushar <tushar.ahuja@enterprisedb.com>, Prabhat Sahu <prabhat.sahu@enterprisedb.com>, Ashutosh Sharma <ashu.coek88@gmail.com>, Jim Nasby <Jim.Nasby@bluetreble.com>, Kuntal Ghosh <kuntalghosh.2007@gmail.com>, Andres Freund <andres@anarazel.de>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2017-03-22T17:49:33Z
Lists: pgsql-hackers 
Robert,

* Robert Haas (robertmhaas@gmail.com) wrote:
> On Wed, Mar 22, 2017 at 1:22 PM, Stephen Frost <sfrost@snowman.net> wrote:
> > To put this in another light, had this issue been brought up post
> > feature-freeze, your definition would mean that we would only have the
> > option to either revert the patch entirely or to live with the poor
> > naming scheme.
> 
> Yeah, and I absolutely agree with that.  In fact, I think it's
> *already* past the time when we should be considering the changes you
> want.

Then perhaps we do need to be thinking of moving this to PG11 instead of
exposing an option that users will start to use which will result in WAL
naming that'll be confusing and inconsistent.  I certainly don't think
it's a good idea to move forward exposing an option with a naming scheme
that's agreed to be bad.

Thanks!

Stephen

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Make WAL segment size configurable at initdb time.

  2. Perform only one ReadControlFile() during startup.

  3. Introduce BYTES unit for GUCs.

  4. Remove useless duplicate inclusions of system header files.

  5. Refactor other replication commands to use DestRemoteSimple.

  6. Add a SHOW command to the replication command language.

  7. Add a new DestReceiver for printing tuples without catalog access.

  8. Support fls().

  9. Extend yesterday's patch making BLCKSZ and RELSEG_SIZE configurable to also

  10. Commit the reasonably uncontroversial parts of J.R. Nield's PITR patch, to

  11. XLOG (also known as WAL -:)) Bootstrap/Startup/Shutdown.

  12. Transaction log manager core code.