Re: backup manifests

tushar <tushar.ahuja@enterprisedb.com>

From: tushar <tushar.ahuja@enterprisedb.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Rajkumar Raghuwanshi <rajkumar.raghuwanshi@enterprisedb.com>, Suraj Kharage <suraj.kharage@enterprisedb.com>, Rushabh Lathia <rushabh.lathia@gmail.com>, Tels <nospam-pg-abuse@bloodgate.com>, David Steele <david@pgmasters.net>, Andrew Dunstan <andrew.dunstan@2ndquadrant.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Jeevan Chalke <jeevan.chalke@enterprisedb.com>, vignesh C <vignesh21@gmail.com>
Date: 2020-03-13T13:53:03Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Try to avoid compiler warnings in optimized builds.

  2. Fix option related issues in pg_verifybackup.

  3. Add index term for backup manifest in documentation.

  4. Code review for backup manifest.

  5. Document the backup manifest file format.

  6. Fix typo in pg_validatebackup documentation.

  7. Exclude backup_manifest file that existed in database, from BASE_BACKUP.

  8. Msys2 tweaks for pg_validatebackup corruption test

  9. Fix resource management bug with replication=database.

  10. Be more careful about time_t vs. pg_time_t in basebackup.c.

  11. pg_validatebackup: Fix 'make clean' to remove tmp_check.

  12. pg_validatebackup: Also use perl2host in TAP tests.

  13. Generate backup manifests for base backups, and validate them.

  14. Add checksum helper functions.

  15. pg_waldump: Add a --quiet option.

  16. Catversion bump for b9b408c48724

  17. pg_basebackup: Refactor code for reading COPY and tar data.

  18. Use a ResourceOwner to track buffer pins in all cases.

  19. Use ARMv8 CRC instructions where available.

  20. Logical replication support for initial data copy

  21. Use Intel SSE 4.2 CRC instructions where available.

  22. Switch to CRC-32C in WAL and other places.

  23. Remove support for 64-bit CRC.

  24. Change CRCs in WAL records from 64bit to 32bit for performance reasons.

On 3/12/20 8:16 PM, tushar wrote:
>> Seems like expected behavior to me. We could consider providing a more
>> descriptive error message, but there's now way for it to work.
>
> Right , Error message need to be more user friendly . 

One scenario which i feel - should error out  even if  -s option is 
specified.

create  base  backup directory ( ./pg_basebackup data1)
Connect to root user and take out  the permission from pg_hba.conf file 
( chmod 004 pg_hba.conf)

run pg_validatebackup -

[centos@tushar-ldap-docker bin]$ ./pg_validatebackup data1
pg_validatebackup: error: could not open file "pg_hba.conf": Permission 
denied

run pg_validatebackup  with switch -s

[centos@tushar-ldap-docker bin]$ ./pg_validatebackup data1 -s
pg_validatebackup: backup successfully verified

here file is not accessible so i think - it should throw you an error ( 
the same above one) instead of   blindly skipping it.

-- 
regards,tushar
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