我正在尝试在Ubuntu服务器（使用nginx）上使用Gunicorn运行几个Flask应用程序 . 其中一个正在工作，但我尝试添加的新应用程序在我尝试击中它时会响应404 .

这是我的gunicorn配置（这是由 supervisor 运行）：

NAME="leaving_app" # Name of the application
NUM_WORKERS=3 # how many worker processes should Gunicorn spawn

echo "Starting $NAME as `whoami`"

# Activate the virtual environment
cd /var/www/mattandrews/leaving/
source /var/www/mattandrews/leaving/ve/bin/activate

exec /var/www/mattandrews/leaving/ve/bin/gunicorn leaving:app  \
  --bind my.server.ip.here:8003
  --name $NAME \
  --workers $NUM_WORKERS \
  --log-level=debug \

如果我直接去 my.server.ip.here:8003 我可以看到它正常运行 . 这是 nginx 配置：

server {
    listen          80;
    server_name     mydomain.com;
    root            /var/www/mattandrews;
    index           index.php index.html index.htm;

    location /leaving {
        proxy_pass http://my.server.ip.here:8003;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
        proxy_set_header X-Script-Name /leaving;
    }

    location = / {
        proxy_pass http://my.server.ip.here:8002;
        proxy_set_header X-Forwarded-Host $server_name;
        proxy_set_header X-Real-IP $remote_addr;
        add_header P3P 'CP="ALL DSP COR PSAa PSDa OUR NOR ONL UNI COM NAV"';
    }
}

在端口 8002 上运行的应用程序在根目录上运行（并且正常工作），但是当我尝试按 mydomain.com/leaving 时，我得到了404 .

查看 nginx 错误日志，我看到以下消息：

2015/04/21 18:32:25 [debug] 25809#0: *749454 http upstream check client, write event:1, "/leaving/"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http upstream recv(): -1 (11: Resource temporarily unavailable)
2015/04/21 18:32:25 [debug] 25809#0: *749454 post event 097AA498
2015/04/21 18:32:25 [debug] 25809#0: *749454 post event 097CD160
2015/04/21 18:32:25 [debug] 25809#0: *749454 delete posted event 097CD160
2015/04/21 18:32:25 [debug] 25809#0: *749454 http upstream request: "/leaving/?"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http upstream dummy handler
2015/04/21 18:32:25 [debug] 25809#0: *749454 delete posted event 097AA498
2015/04/21 18:32:25 [debug] 25809#0: *749454 http upstream request: "/leaving/?"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http upstream process header
2015/04/21 18:32:25 [debug] 25809#0: *749454 malloc: 097F6CA0:131072
2015/04/21 18:32:25 [debug] 25809#0: *749454 recv: fd:9 153 of 131072
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy status 404 "404 NOT FOUND"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy header: "Server: gunicorn/19.3.0"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy header: "Date: Tue, 21 Apr 2015 22:32:25 GMT"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy header: "Connection: close"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy header: "Content-Type: text/html"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy header: "Content-Length: 233"
2015/04/21 18:32:25 [debug] 25809#0: *749454 http proxy header done
2015/04/21 18:32:25 [debug] 25809#0: *749454 xslt filter header
2015/04/21 18:32:25 [debug] 25809#0: *749454 HTTP/1.1 404 NOT FOUND

一些谷歌搜索表明 11: Resource temporarily unavailable 与一些gunicorn issue有关，但没有任何对我有用 .

有没有人有任何关于下一步尝试的指示？

编辑：这是Flask应用程序的相关部分：

@app.route('/')
def home():
    return render_template('index.html')
nginx flask gunicorn