From c4244ad423b71cf93c4a3a0147b95dae647d5325 Mon Sep 17 00:00:00 2001
From: XingQue <kongxing634@gmail.com>
Date: Thu, 9 Jul 2026 04:49:08 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20MySQL=20=E7=A9=BA=E9=97=B2=E8=BF=9E?=
 =?UTF-8?q?=E6=8E=A5=E5=81=A5=E5=BA=B7=E6=A3=80=E6=9F=A5=20+=20Gunicorn=20?=
 =?UTF-8?q?worker=20=E4=BF=9D=E6=B4=BB=EF=BC=8C=E8=A7=A3=E5=86=B3=E5=B9=BF?=
 =?UTF-8?q?=E6=92=AD=E5=BC=80=E6=89=8D=E4=B8=8D=E5=8D=A1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 a_long_dianjing/settings.py |  1 +
 deploy/apply-lag-fix.sh     |  8 ++++++++
 deploy/gunicorn-warmup.cron |  5 +++++
 deploy/gunicorn-warmup.sh   | 16 ++++++++++++++++
 4 files changed, 30 insertions(+)
 create mode 100644 deploy/gunicorn-warmup.cron
 create mode 100644 deploy/gunicorn-warmup.sh

diff --git a/a_long_dianjing/settings.py b/a_long_dianjing/settings.py
index fa7ea50..4bd6e5e 100644
--- a/a_long_dianjing/settings.py
+++ b/a_long_dianjing/settings.py
@@ -126,6 +126,7 @@ DATABASES = {
         'PASSWORD': app_secrets.DATABASE_PASSWORD,
         'PORT': app_secrets.DATABASE_PORT,
         'CONN_MAX_AGE': 600,
+        'CONN_HEALTH_CHECKS': True,
         'OPTIONS': {
             'charset': 'utf8mb4',
             'init_command': "SET time_zone='+08:00'",
diff --git a/deploy/apply-lag-fix.sh b/deploy/apply-lag-fix.sh
index 065c195..f63c856 100644
--- a/deploy/apply-lag-fix.sh
+++ b/deploy/apply-lag-fix.sh
@@ -16,6 +16,14 @@ sleep 2
 systemctl is-active gunicorn-dianjing.service
 pgrep -cf 'gunicorn.*a_long_dianjing' || true
 
+echo ""
+echo ">>> 安装 worker 保活 cron（空闲后不卡）"
+chmod +x deploy/gunicorn-warmup.sh
+cp deploy/gunicorn-warmup.cron /etc/cron.d/gunicorn-warmup
+chmod 644 /etc/cron.d/gunicorn-warmup
+bash deploy/gunicorn-warmup.sh
+echo "  cron 已安装，每2分钟预热 worker"
+
 echo ""
 echo ">>> 最近慢请求 (rt>=0.5s):"
 grep -a 'hqhd' "$NGINX_LOG" | awk 'match($0,/rt=([0-9.]+)/,a){if(a[1]+0>=0.5)print}' | tail -5
diff --git a/deploy/gunicorn-warmup.cron b/deploy/gunicorn-warmup.cron
new file mode 100644
index 0000000..aba328b
--- /dev/null
+++ b/deploy/gunicorn-warmup.cron
@@ -0,0 +1,5 @@
+# 每 2 分钟预热 Gunicorn worker，解决「空闲后第一下卡、有广播/并发反而不卡」
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+*/2 * * * * root /opt/1panel/apps/openresty/nginx/www/sites/43.142.166.152.443/django/deploy/gunicorn-warmup.sh >/dev/null 2>&1
diff --git a/deploy/gunicorn-warmup.sh b/deploy/gunicorn-warmup.sh
new file mode 100644
index 0000000..fd155cb
--- /dev/null
+++ b/deploy/gunicorn-warmup.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+# 每 2 分钟 ping 一次 Gunicorn，避免 worker/数据库连接空闲后「第一下卡」
+# 安装: cp deploy/gunicorn-warmup.cron /etc/cron.d/gunicorn-warmup && chmod 644 /etc/cron.d/gunicorn-warmup
+
+DJANGO_DIR="/opt/1panel/apps/openresty/nginx/www/sites/43.142.166.152.443/django"
+cd "$DJANGO_DIR"
+
+# 6 个 worker 各打一次，保持连接池温热
+for _ in 1 2 3 4 5 6; do
+  curl -s -o /dev/null --max-time 3 http://127.0.0.1:8001/ &
+done
+wait
+
+# 顺带测一条需连库的轻量配置接口（无需 token 的会 401/404，但会走 Django+MySQL）
+curl -s -o /dev/null --max-time 5 -X POST http://127.0.0.1:8001/hqhd/peizhi/qdpzhq \
+  -H 'Content-Type: application/json' -d '{}' 2>/dev/null || true