ngix莫名挂掉 signal process started

大家好，我是烤鸭：

      又到了采坑实录。ngix莫名挂掉 error.log一直出现 signal process started
查看了access.log和error.log

access.log：

43.245.218.208 - - [06/Jan/2019:18:08:43 +0800] "GET / HTTP/1.1" 200 555 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36"
139.162.230.58 - - [06/Jan/2019:18:38:07 +0800] "GET / HTTP/1.0" 200 555 "-" "-"
201.13.175.100 - - [06/Jan/2019:18:41:07 +0800] "GET / HTTP/1.1" 200 555 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7"
80.82.70.187 - - [06/Jan/2019:19:54:35 +0800] "GET http://www.baidu/cache/global/img/gs.gif HTTP/1.1" 404 614 "-" "Mozilla" 

error.log:

2019/01/06 09:44:34 [error] 26262#0: *33538 open() "/opt/tools/tengine//html/cache/global/img/gs.gif" failed (2: No such file or directory), client: 80.82.70.187, server: localhost, request: "GET http://www.baidu/cache/global/img/gs.gif HTTP/1.1", host: "www.baidu"
2019/01/06 19:54:35 [error] 26262#0: *33564 open() "/opt/tools/tengine//html/cache/global/img/gs.gif" failed (2: No such file or directory), client: 80.82.70.187, server: localhost, request: "GET http://www.baidu/cache/global/img/gs.gif HTTP/1.1", host: "www.baidu"
2019/01/06 20:01:08 [error] 26262#0: *33565 open() "/opt/tools/tengine//html/cache/global/img/gs.gif" failed (2: No such file or directory), client: 80.82.78.50, server: localhost, request: "GET http://www.baidu/cache/global/img/gs.gif HTTP/1.1", host: "www.baidu"
2019/01/06 22:56:26 [error] 26262#0: *33571 open() "/opt/static/html/film/index.html" failed (2: No such file or directory), client: 120.92.92.251, server: film.7zhanglao.vip, request: "GET / HTTP/1.1", host: "film.7zhanglao.vip"
2019/01/07 00:48:06 [error] 26262#0: *33575 open() "/opt/tools/tengine//html/azenv.php" failed (2: No such file or directory), client: 95.213.177.123, server: localhost, request: "POST http://check.proxyradar/azenv.php?auth=154679328611&a=PSCN&i=794688341&p=80 HTTP/1.1", host: "check.proxyradar", referrer: "http://best-proxies.ru/"
2019/01/07 02:04:58 [error] 26262#0: *33578 open() "/opt/tools/tengine//html/ccvv" failed (2: No such file or directory), client: 71.6.202.198, server: localhost, request: "GET /ccvv HTTP/1.1", host: "47.93.251.85"
2019/01/07 03:09:24 [error] 26262#0: *33581 open() "/opt/tools/tengine//html/xmlrpc.php" failed (2: No such file or directory), client: 213.174.145.35, server: localhost, request: "GET /xmlrpc.php HTTP/1.1", host: "47.93.251.85"
2019/01/07 06:02:23 [error] 26262#0: *33588 open() "/opt/tools/tengine//html/cache/global/img/gs.gif" failed (2: No such file or directory), client: 80.82.70.187, server: localhost, request: "GET http://www.baidu/cache/global/img/gs.gif HTTP/1.1", host: "www.baidu"
2019/01/07 10:07:16 [notice] 1393#0: signal process started

可以看得出来两个日志时间上是没有什么交集的。
我这个报错信息是比较明显的，open() "/opt/tools/tengine//logs/nginx.pid" failed (2: No such file or directory)。
虽然不知道为什么，配置文件没有改过，运行过一段时间没有问题，昨天第一次出现这个。
莫名其妙的tengine路径后面多了一个/。
原来的conf目录下的nginx.conf文件。

#user  nobody;
worker_processes  1;

error_log   logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

pid         logs/nginx.pid;

修改为

#user  nobody;
worker_processes  1;

error_log  /opt/tools/tengine/logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

pid        /opt/tools/tengine/logs/nginx.pid;

重新启动之后就可以了。

./nginx -c /opt/tools/tengine/conf/nginx.conf

虽然还不知道什么原因导致的nginx挂掉，观察一段时间再看。做个记录。