Horton

Fix "missing continuation record" after standby promotion

Alvaro Herrera <alvherre@alvh.no-ip.org>

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Commit: 199cd7b59a16cb5b5de54ad7d9c1eea129e03833
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2022-03-23T17:22:10Z
Releases: 11.16 
Fix "missing continuation record" after standby promotion

Invalidate abortedRecPtr and missingContrecPtr after a missing
continuation record is successfully skipped on a standby. This fixes a
PANIC caused when a recently promoted standby attempts to write an
OVERWRITE_RECORD with an LSN of the previously read aborted record.

Backpatch to 10 (all stable versions).

Author: Sami Imseih <simseih@amazon.com>
Reviewed-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/44D259DE-7542-49C4-8A52-2AB01534DCA9@amazon.com

Files

PathChange+/−
src/backend/access/transam/xlog.c modified +4 −0
src/test/recovery/t/026_overwrite_contrecord.pl modified +4 −1

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