From bce94c5860d645862eb148cfd3788d0f389a7d93 Mon Sep 17 00:00:00 2001
From: Toni Spets <toni.spets@iki.fi>
Date: Tue, 10 Aug 2021 21:09:28 +0300
Subject: [PATCH] Allow configuring synapse database transaction limit

---
 roles/matrix-synapse/defaults/main.yml                    | 1 +
 roles/matrix-synapse/templates/synapse/homeserver.yaml.j2 | 1 +
 2 files changed, 2 insertions(+)

diff --git a/roles/matrix-synapse/defaults/main.yml b/roles/matrix-synapse/defaults/main.yml
index d8a93b054..83d2e51d8 100644
--- a/roles/matrix-synapse/defaults/main.yml
+++ b/roles/matrix-synapse/defaults/main.yml
@@ -453,6 +453,7 @@ matrix_synapse_replication_http_port: 9093
 matrix_synapse_sentry_dsn: ""
 
 # Postgres database information
+matrix_synapse_database_txn_limit: 0
 matrix_synapse_database_host: "matrix-postgres"
 matrix_synapse_database_port: 5432
 matrix_synapse_database_user: "synapse"
diff --git a/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2 b/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2
index 8f0f2eb9b..4fd258f17 100644
--- a/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2
+++ b/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2
@@ -777,6 +777,7 @@ caches:
 database:
   # The database engine name
   name: "psycopg2"
+  txn_limit: {{ matrix_synapse_database_txn_limit }}
   args:
     user: {{ matrix_synapse_database_user|string|to_json }}
     password: {{ matrix_synapse_database_password|string|to_json }}