我有一个语法正确的简单 nginx 配置。我使用厨师安装 nginx，厨师脚本工作正常。
但是当我检查 nginx 的状态时，我发现它处于失败状态。如果我重新加载 nginx ，它会再次进入失败状态。journalctl -xn也没有给出太多错误，除了：
[root@localhost vagrant]# journalctl -xn
-- Logs begin at Wed 2016-10-26 04:28:18 UTC, end at Wed 2016-10-26 04:45:00 UTC. --
Oct 26 04:45:00 localhost.localdomain kill[17003]: -s, --signal <sig> send specified signal
Oct 26 04:45:00 localhost.localdomain kill[17003]: -q, --queue <sig> use sigqueue(2) rather than kill(2)
Oct 26 04:45:00 localhost.localdomain kill[17003]: -p, --pid print pids without signaling them
Oct 26 04:45:00 localhost.localdomain kill[17003]: -l, --list [=<signal>] list signal names, or convert one to a name
Oct 26 04:45:00 localhost.localdomain kill[17003]: -L, --table list signal names and numbers
Oct 26 04:45:00 localhost.localdomain kill[17003]: -h, --help display this help and exit
Oct 26 04:45:00 localhost.localdomain kill[17003]: -V, --version output version information and exit
Oct 26 04:45:00 localhost.localdomain kill[17003]: For more details see kill(1).
Oct 26 04:45:00 localhost.localdomain systemd[1]: nginx.service: control process exited, code=exited status=1
Oct 26 04:45:00 localhost.localdomain systemd[1]: Unit nginx.service entered failed state.
[root@localhost vagrant]#
nginx -t 成功，我在 /var/log/nginx/errors.log 中什么也看不到
有没有其他方法可以准确排除失败的原因？
systemctl status nginx.service 都给出：
[root@localhost vagrant]# systemctl status nginx.service
nginx.service - The nginx HTTP and reverse proxy server
Loaded: loaded (/usr/lib/systemd/system/nginx.service; static)
Active: failed (Result: exit-code) since Wed 2016-10-26 04:45:00 UTC; 9h ago
Process: 17003 ExecStop=/bin/kill -s QUIT $MAINPID (code=exited, status=1/FAILURE)
Process: 16999 ExecStart=/opt/nginx-1.10.1/sbin/nginx (code=exited, status=0/SUCCESS)
Process: 16998 ExecStartPre=/opt/nginx-1.10.1/sbin/nginx -t (code=exited, status=0/SUCCESS)
Main PID: 16999 (code=exited, status=0/SUCCESS)
Oct 26 04:45:00 localhost.localdomain kill[17003]: -s, --signal <sig> send specified signal
Oct 26 04:45:00 localhost.localdomain kill[17003]: -q, --queue <sig> use sigqueue(2) rather than kill(2)
Oct 26 04:45:00 localhost.localdomain kill[17003]: -p, --pid print pids without signaling them
Oct 26 04:45:00 localhost.localdomain kill[17003]: -l, --list [=<signal>] list signal names, or convert one to a name
Oct 26 04:45:00 localhost.localdomain kill[17003]: -L, --table list signal names and numbers
Oct 26 04:45:00 localhost.localdomain kill[17003]: -h, --help display this help and exit
Oct 26 04:45:00 localhost.localdomain kill[17003]: -V, --version output version information and exit
Oct 26 04:45:00 localhost.localdomain kill[17003]: For more details see kill(1).
Oct 26 04:45:00 localhost.localdomain systemd[1]: nginx.service: control process exited, code=exited status=1
Oct 26 04:45:00 localhost.localdomain systemd[1]: Unit nginx.service entered failed state.
systemctl cat nginx.service 给出：
[root@virsinplatformapi02 sysadmin]# systemctl cat nginx.service
Unknown operation 'cat'.
我 cd cd /lib/systemd/system 并在 nginx.service 上执行 cat：
[root@virsinplatformapi02 system]# cat nginx.service
[Unit]
Description=The nginx HTTP and reverse proxy server
After=network.target remote-fs.target nss-lookup.target
[Service]
ExecStartPre=/opt/nginx-1.10.1/sbin/nginx -t
ExecStart=/opt/nginx-1.10.1/sbin/nginx
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true
[Install]
如果我执行 echo $MAINPID ，我什么也得不到。