Fix memory leak in SnapBuildSerialize.
The memory for the snapshot was leaked while serializing it to disk during
logical decoding. This memory will be freed only once walsender stops
streaming the changes. This can lead to a huge memory increase when master
logs Standby Snapshot too frequently say when the user is trying to create
many replication slots.
Reported-by: funnyxj.fxj@alibaba-inc.com
Diagnosed-by: funnyxj.fxj@alibaba-inc.com
Author: Amit Kapila
Backpatch-through: 9.5
Discussion: https://postgr.es/m/033ab54c-6393-42ee-8ec9-2b399b5d8cde.funnyxj.fxj@alibaba-inc.com
Branch
------
REL_13_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/0685c5c1b9225352bbaf4fe81c550f09508379ce
Modified Files
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src/backend/replication/logical/snapbuild.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
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