Tweak pg_promote() to report failures on kill() or postmaster failures
Since its introduction in 10074651e335, pg_promote() has been returning
a false status in three cases:
- SIGUSR1 not sent to the postmaster process.
- Postmaster death during standby promotion.
- Standby not promoted within the specified wait time.
An application calling this function will have a hard time understanding
what a false state returned actually means.
Per discussion, this switches the two first states to fail rather than
return a "false" status, making the second case more consistent with the
existing CHECK_FOR_INTERRUPTS in the wait loop. False is only returned
when the promotion is not completed within the specified time (60s by
default).
Author: Ashutosh Sharma
Reviewed-by: Fujii Masao, Laurenz Albe, Michael Paquier
Discussion: https://postgr.es/m/CAE9k0P=QTrwptL0t4J0fuBRDDjgsT-0PVKd-ikd96i1hyL7Bcg@mail.gmail.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/f593c5517d14a949ae659eec470eb6bc0d2fdd5d
Modified Files
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src/backend/access/transam/xlogfuncs.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)