我刚刚使用 gunicorn 和 Nginx 部署了我的 Django (1.6) 项目。
它似乎工作正常，但我有一页是我收到 HTTP 500 错误，我无法在任何地方找到有关该错误的任何详细信息。
如何让 gunicorn 向我显示错误？
这是我当前在日志文件中看到的所有内容，当时我点击了给我错误的页面：
>tail gunicorn.errors
2014-02-21 14:41:02 [22676] [INFO] Listening at: unix:/opt/djangoprojects/reports/bin/gunicorn.sock (22676)
2014-02-21 14:41:02 [22676] [INFO] Using worker: sync
2014-02-21 14:41:02 [22689] [INFO] Booting worker with pid: 22689
...
2014-02-21 19:41:10 [22691] [DEBUG] GET /reports/2/
这是我用来启动 gunicorn 的 bash 脚本：
>cat gunicorn_start
#!/bin/bash
NAME="reports" # Name of the application
DJANGODIR=/opt/djangoprojects/reports # Django project directory
SOCKFILE=/opt/djangoprojects/reports/bin/gunicorn.sock # we will communicte using this unix socket
USER=reportsuser # the user to run as
GROUP=webapps # the group to run as
NUM_WORKERS=4 # how many worker processes should Gunicorn spawn
DJANGO_SETTINGS_MODULE=reports.settings # which settings file should Django use
DJANGO_WSGI_MODULE=reports.wsgi # WSGI module name
#echo "Starting $NAME as `whoami`"
# Activate the virtual environment
cd $DJANGODIR
source pythonenv/bin/activate
export DJANGO_SETTINGS_MODULE=$DJANGO_SETTINGS_MODULE
export PYTHONPATH=$DJANGODIR:$PYTHONPATH
# Create the run directory if it doesn't exist
RUNDIR=$(dirname $SOCKFILE)
test -d $RUNDIR || mkdir -p $RUNDIR
# Start your Django Unicorn
# Programs meant to be run under supervisor should not daemonize themselves (do not use --daemon)
exec gunicorn ${DJANGO_WSGI_MODULE}:application \
--name $NAME \
--workers $NUM_WORKERS \
--user=$USER --group=$GROUP \
--log-level=debug \
--bind=unix:$SOCKFILE \
--error-logfile /opt/djangoprojects/reports/bin/gunicorn.errors \
--log-file /opt/djangoprojects/reports/bin/gunicorn.errors
更多信息：
我正在使用我复制和修改的这个 init.d 脚本启动/停止 gunicorn sudo service reports start|stop|restart：
>cat /etc/init.d/reports
#!/bin/sh
### BEGIN INIT INFO
# Provides: django_gunicorn
# Required-Start: $local_fs $network $remote_fs
# Required-Stop: $local_fs $network $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Starts django_unicorn reports at boot time.
# Description: Starts django_unicorn reports at boot time.
### END INIT INFO
name=`basename $0`
dir="/opt/djangoprojects/reports"
cmd="${dir}/bin/gunicorn_start"
pid_file="/var/run/$name.pid"
log_file="${dir}/bin/reports.log"
get_pid() {
cat "$pid_file"
}
is_running() {
[ -f "$pid_file" ] && ps `get_pid` > /dev/null 2>&1
}
case "$1" in
start)
if is_running; then
echo "Already running"
else
echo -n "Starting ${name}... "
cd "$dir"
#sudo -u "$user" $cmd &>> "$log_file"
$cmd &>> "$log_file" &
echo $! > "$pid_file"
if ! is_running; then
echo "Unable to start; see $log_file"
exit 1
else
echo "[STARTED]"
fi
fi
;;
stop)
if is_running; then
echo -n "Stopping ${name}... "
kill `get_pid`
for i in {1..10}
do
if ! is_running; then
break
fi
echo -n "."
sleep 1
done
echo
if is_running; then
echo "Not stopped; may still be shutting down or shutdown may have failed"
exit 1
else
echo "[STOPPED]"
if [ -f "$pid_file" ]; then
rm "$pid_file"
fi
fi
else
echo "Not running"
fi
;;
restart)
$0 stop
if is_running; then
echo "Unable to stop, will not attempt to start"
exit 1
fi
$0 start
;;
status)
if is_running; then
echo "[RUNNING]"
else
echo "[STOPPED]"
exit 1
fi
;;
*)
echo "Usage: $0 {start|stop|restart|status}"
exit 1
;;
esac
exit 0