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 ------ master Details ------- https://git.postgresql.org/pg/commitdiff/ee1b38f65948cb09ecf3c39b58bd88aabc950e7c Modified Files -------------- src/backend/replication/logical/snapbuild.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
