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 ------ REL9_5_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/4bccceaa9179bffbe3469909e28ce4ded34f0a09 Modified Files -------------- src/backend/replication/logical/snapbuild.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)