From 64f6775c685f5597f7da4755a08d9933fc937288 Mon Sep 17 00:00:00 2001
From: nymkappa <1612910616@pm.me>
Date: Wed, 3 Jan 2024 15:12:11 +0100
Subject: [PATCH] [database] increase default pool size to 100 connections

---
 backend/src/__fixtures__/mempool-config.template.json | 3 ++-
 backend/src/__tests__/config.test.ts                  | 3 ++-
 backend/src/config.ts                                 | 2 ++
 backend/src/database.ts                               | 2 +-
 docker/backend/mempool-config.json                    | 3 ++-
 docker/backend/start.sh                               | 2 ++
 6 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/backend/src/__fixtures__/mempool-config.template.json b/backend/src/__fixtures__/mempool-config.template.json
index 0c30651ce..4b7966e08 100644
--- a/backend/src/__fixtures__/mempool-config.template.json
+++ b/backend/src/__fixtures__/mempool-config.template.json
@@ -77,7 +77,8 @@
     "USERNAME": "__DATABASE_USERNAME__",
     "PASSWORD": "__DATABASE_PASSWORD__",
     "PID_DIR": "__DATABASE_PID_FILE__",
-    "TIMEOUT": 3000
+    "TIMEOUT": 3000,
+    "POOL_SIZE": 100
   },
   "SYSLOG": {
     "ENABLED": false,
diff --git a/backend/src/__tests__/config.test.ts b/backend/src/__tests__/config.test.ts
index 2991162e9..84290744f 100644
--- a/backend/src/__tests__/config.test.ts
+++ b/backend/src/__tests__/config.test.ts
@@ -91,7 +91,8 @@ describe('Mempool Backend Config', () => {
         USERNAME: 'mempool',
         PASSWORD: 'mempool',
         TIMEOUT: 180000,
-        PID_DIR: ''
+        PID_DIR: '',
+        POOL_SIZE: 100,
       });
 
       expect(config.SYSLOG).toStrictEqual({
diff --git a/backend/src/config.ts b/backend/src/config.ts
index 4115149e6..6b2011d39 100644
--- a/backend/src/config.ts
+++ b/backend/src/config.ts
@@ -101,6 +101,7 @@ interface IConfig {
     PASSWORD: string;
     TIMEOUT: number;
     PID_DIR: string;
+    POOL_SIZE: number;
   };
   SYSLOG: {
     ENABLED: boolean;
@@ -236,6 +237,7 @@ const defaults: IConfig = {
     'PASSWORD': 'mempool',
     'TIMEOUT': 180000,
     'PID_DIR': '',
+    'POOL_SIZE': 100,
   },
   'SYSLOG': {
     'ENABLED': true,
diff --git a/backend/src/database.ts b/backend/src/database.ts
index dc543bbbc..05f624ff4 100644
--- a/backend/src/database.ts
+++ b/backend/src/database.ts
@@ -21,7 +21,7 @@ import { execSync } from 'child_process';
     database: config.DATABASE.DATABASE,
     user: config.DATABASE.USERNAME,
     password: config.DATABASE.PASSWORD,
-    connectionLimit: 10,
+    connectionLimit: config.DATABASE.POOL_SIZE,
     supportBigNumbers: true,
     timezone: '+00:00',
   };
diff --git a/docker/backend/mempool-config.json b/docker/backend/mempool-config.json
index e73fa1929..804ca4d11 100644
--- a/docker/backend/mempool-config.json
+++ b/docker/backend/mempool-config.json
@@ -77,7 +77,8 @@
     "USERNAME": "__DATABASE_USERNAME__",
     "PASSWORD": "__DATABASE_PASSWORD__",
     "TIMEOUT": __DATABASE_TIMEOUT__,
-    "PID_DIR": "__DATABASE_PID_DIR__"
+    "PID_DIR": "__DATABASE_PID_DIR__",
+    "POOL_SIZE": __DATABASE_POOL_SIZE__
   },
   "SYSLOG": {
     "ENABLED": __SYSLOG_ENABLED__,
diff --git a/docker/backend/start.sh b/docker/backend/start.sh
index 232cf7284..196d4dca2 100755
--- a/docker/backend/start.sh
+++ b/docker/backend/start.sh
@@ -79,6 +79,7 @@ __DATABASE_USERNAME__=${DATABASE_USERNAME:=mempool}
 __DATABASE_PASSWORD__=${DATABASE_PASSWORD:=mempool}
 __DATABASE_TIMEOUT__=${DATABASE_TIMEOUT:=180000}
 __DATABASE_PID_DIR__=${DATABASE_PID_DIR:=""}
+__DATABASE_POOL_SIZE__=${DATABASE_POOL_SIZE:=100}
 
 # SYSLOG
 __SYSLOG_ENABLED__=${SYSLOG_ENABLED:=false}
@@ -226,6 +227,7 @@ sed -i "s!__DATABASE_USERNAME__!${__DATABASE_USERNAME__}!g" mempool-config.json
 sed -i "s!__DATABASE_PASSWORD__!${__DATABASE_PASSWORD__}!g" mempool-config.json
 sed -i "s!__DATABASE_TIMEOUT__!${__DATABASE_TIMEOUT__}!g" mempool-config.json
 sed -i "s!__DATABASE_PID_DIR__!${__DATABASE_PID_DIR__}!g" mempool-config.json
+sed -i "s!__DATABASE_POOL_SIZE__!${__DATABASE_POOL_SIZE__}!g" mempool-config.json
 
 sed -i "s!__SYSLOG_ENABLED__!${__SYSLOG_ENABLED__}!g" mempool-config.json
 sed -i "s!__SYSLOG_HOST__!${__SYSLOG_HOST__}!g" mempool-config.json