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: [email protected] Diagnosed-by: [email protected] Author: Amit Kapila Backpatch-through: 9.5 Discussion: https://postgr.es/m/[email protected] Branch ------ REL9_6_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/f2b268ee0626286d15a1eaa78fe1704811d51cd4 Modified Files -------------- src/backend/replication/logical/snapbuild.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
