From 13b1b580a99dbf2a42c0a400d975695a3038413b Mon Sep 17 00:00:00 2001
From: abc3 <sts@abc3.dev>
Date: Mon, 23 Jun 2025 14:50:43 +0200
Subject: [PATCH] chore: add POOLER_DB_POOL_SIZE to env vars in docker-compose
 (#36270)

---
 docker/.env.example       | 7 +++++++
 docker/docker-compose.yml | 1 +
 2 files changed, 8 insertions(+)

diff --git a/docker/.env.example b/docker/.env.example
index 2ca5a229c2..8ee5f75c68 100644
--- a/docker/.env.example
+++ b/docker/.env.example
@@ -26,10 +26,17 @@ POSTGRES_PORT=5432
 ############
 # Supavisor -- Database pooler
 ############
+# Port Supavisor listens on for transaction pooling connections
 POOLER_PROXY_PORT_TRANSACTION=6543
+# Maximum number of PostgreSQL connections Supavisor opens per pool
 POOLER_DEFAULT_POOL_SIZE=20
+# Maximum number of client connections Supavisor accepts per pool
 POOLER_MAX_CLIENT_CONN=100
+# Unique tenant identifier
 POOLER_TENANT_ID=your-tenant-id
+# Pool size for internal metadata storage used by Supavisor
+# This is separate from client connections and used only by Supavisor itself
+POOLER_DB_POOL_SIZE=5
 
 
 ############
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index b2ebedbb78..6cd49f2921 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -518,6 +518,7 @@ services:
       POOLER_DEFAULT_POOL_SIZE: ${POOLER_DEFAULT_POOL_SIZE}
       POOLER_MAX_CLIENT_CONN: ${POOLER_MAX_CLIENT_CONN}
       POOLER_POOL_MODE: transaction
+      DB_POOL_SIZE: ${POOLER_DB_POOL_SIZE}
     command:
       [
         "/bin/sh",