Horton

Re: trying again to get incremental backup

Robert Haas <robertmhaas@gmail.com>

View thread View on postgr.es
From: Robert Haas <robertmhaas@gmail.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Dilip Kumar <dilipbalaut@gmail.com>, Andres Freund <andres@anarazel.de>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2023-11-20T19:10:34Z
Lists: pgsql-hackers 
On Mon, Nov 20, 2023 at 2:03 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> That sounds good to me.  Not having to parse the manifest server-side
> sounds like a win, as does saving the transfer, for the cases where the
> manifest is large.

OK. I'll look into this next week, hopefully.

> Is this meant to support multiple timelines each with non-overlapping
> adjacent ranges, rather than multiple non-adjacent ranges?

Correct. I don't see how non-adjacent LSN ranges could ever be a
useful thing, but adjacent ranges on different timelines are useful.

> Do I have it right that you want to rewrite this bit before considering
> this ready to commit?

For sure. I don't think this is the only thing that needs to be
revised before commit, but it's definitely *a* thing that needs to be
revised before commit.

-- 
Robert Haas
EDB: http://www.enterprisedb.com

Commits

  1. Minor fixes to pg_combinebackup and its documentation.

  2. Fix defects in PrepareForIncrementalBackup.

  3. Add WALSummarizerLock to wait_event_names.txt

  4. Initialize variable to placate compiler.

  5. Replace nonsense comment with a relevant one.

  6. Fix numerous typos in incremental backup commits.

  7. Add support for incremental backup.

  8. Add a new WAL summarizer process.

  9. Move src/bin/pg_verifybackup/parse_manifest.c into src/common.

  10. Fix brown paper bag bug in 5c47c6546c413d5eb51c1626070a807026e6139d.

  11. Rename pg_verifybackup's JsonManifestParseContext callback functions.

  12. Rename JsonManifestParseContext callbacks.

  13. Change how a base backup decides which files have checksums.

  14. Change struct tablespaceinfo's oid member from 'char *' to 'Oid'

  15. Refactor parse_filename_for_nontemp_relation to parse more.

  16. During online checkpoints, insert XLOG_CHECKPOINT_REDO at redo point.

  17. In basebackup.c, refactor to create read_file_data_into_buffer.

  18. In basebackup.c, refactor to create verify_page_checksum.

  19. Report syncscan position at end of scan.

  20. Exclude additional directories in pg_basebackup

  21. Add new JSON processing functions and parser API.