Horton

Re: [HACKERS] WAL logging problem in 9.4.3?

Noah Misch <noah@leadboat.com>

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From: Noah Misch <noah@leadboat.com>
To: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: pgsql-hackers@postgresql.org, 9erthalion6@gmail.com, andrew.dunstan@2ndquadrant.com, hlinnaka@iki.fi, robertmhaas@gmail.com, michael@paquier.xyz
Date: 2019-08-22T04:08:09Z
Lists: pgsql-hackers 
On Wed, Aug 21, 2019 at 04:32:38PM +0900, Kyotaro Horiguchi wrote:
> At Mon, 19 Aug 2019 18:59:59 +0900 (Tokyo Standard Time), Kyotaro Horiguchi <horikyota.ntt@gmail.com> wrote in <20190819.185959.118543656.horikyota.ntt@gmail.com>
> > At Sat, 17 Aug 2019 20:52:30 -0700, Noah Misch <noah@leadboat.com> wrote in <20190818035230.GB3021338@rfd.leadboat.com>
> > > For two-phase commit, PrepareTransaction() needs to execute pending syncs.
>  
> Now TwoPhaseFileHeader has two new members for pending syncs. It
> is useless on wal-replay, but that is needed for commit-prepared.

Syncs need to happen in PrepareTransaction(), not in commit-prepared.  I wrote
about that in https://postgr.es/m/20190820060314.GA3086296@rfd.leadboat.com

Commits

  1. Add perl2host call missing from a new test file.

  2. Skip WAL for new relfilenodes, under wal_level=minimal.

  3. Revert "Skip WAL for new relfilenodes, under wal_level=minimal."

  4. Back-patch log_newpage_range().

  5. During heap rebuild, lock any TOAST index until end of transaction.

  6. In log_newpage_range(), heed forkNum and page_std arguments.

  7. Back-patch src/test/recovery and PostgresNode from 9.6 to 9.5.

  8. Reduce pg_ctl's reaction time when waiting for postmaster start/stop.

  9. Accelerate end-of-transaction dropping of relations

  10. Redesign the planner's handling of index-descent cost estimation.

  11. Make TRUNCATE do truncate-in-place when processing a relation that was created