Horton

Re: [HACKERS] WAL logging problem in 9.4.3?

Kyotaro Horiguchi <horikyota.ntt@gmail.com>

View thread View on postgr.es
From: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
To: noah@leadboat.com
Cc: pgsql-hackers@postgresql.org, 9erthalion6@gmail.com, andrew.dunstan@2ndquadrant.com, hlinnaka@iki.fi, robertmhaas@gmail.com, michael@paquier.xyz
Date: 2019-07-12T08:30:41Z
Lists: pgsql-hackers 
Many message seem lost during moving to new environmet..
I'm digging the archive but coudn't find the message for v15..

At Thu, 11 Jul 2019 18:03:35 -0700, Noah Misch <noah@leadboat.com> wrote in <20190712010335.GB1610889@rfd.leadboat.com>
> On Wed, Jul 10, 2019 at 01:19:14PM +0900, Kyotaro Horiguchi wrote:
> > Hello. Rebased the patch to master(bd56cd75d2).
> 
> It looks like you did more than just a rebase, because this v16 no longer
> modifies many files that v14 did modify.  (That's probably good, since you had
> pending review comments.)  What other changes did you make?

Yeah.. Maybe I forgot to send pre-v15 or v16 before rebasing.

v14: WAL-logging is controled by AMs and syncing at commit is
    controled according to the behavior.  At-commit sync is still
    controlled per-relation basis, which means it must be
    processed before transaction state becomes TRNAS_COMMIT. So
    it needs to be separated into PreCommit_RelationSync() from
    AtEOXact_RelationCache().

v15: The biggest change is that at-commit sync is changed to smgr
   basis. At-commit sync is programmed at creation of a storage
   file (RelationCreateStorage), and smgrDoPendingDelete(or
   smgrDoPendingOperations after rename) runs syncs.  AM are no
   longer involved and all permanent relations are WAL-skipped at
   all in the creation transaction while wal_level=minimal.

   All storages created for a relation are once synced then
   removed at commit.

v16: rebased.

The v16 seems no longer works so I'll send further rebased version.

Sorry for the late reply and confusion..

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center

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