Thread: pgsql: Fix memory leak in SnapBuildSerialize.
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_10_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/636b6f99c215217b7e112dc2a97ff1a12f0bd21e Modified Files -------------- src/backend/replication/logical/snapbuild.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)