Correct base backup throttling
Throttling for sending a base backup in walsender is broken for the case
where there is a lot of WAL traffic, because the latch used to put the
walsender to sleep is also signalled by regular WAL traffic (and each
signal causes an additional batch of data to be sent); the net effect is
that there is no or little actual throttling. This is undesirable, so
rewrite the sleep into a loop to achieve the desired effeect.
Author: Jeff Janes, small tweaks by me
Reviewed-by: Antonin Houska
Discussion: https://postgr.es/m/CAMkU=1xH6mde-yL-Eo1TKBGNd0PB1-TMxvrNvqcAkN-qr2E9mw@mail.gmail.com
Branch
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REL_10_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/1861b20cd63ba3a2e9d547858fc4e05d882531c7
Modified Files
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src/backend/replication/basebackup.c | 37 +++++++++++++++++++++++++-----------
1 file changed, 26 insertions(+), 11 deletions(-)