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nginx 主管因 SIGABRT 而终止；不是预期的

tag-icon • tag-icon linux ubuntu nginx supervisord
nginx 主管因 SIGABRT 而终止；不是预期的

我在 ubuntu 上运行 .net core。如果我直接运行我的应用程序，dotnet run我的应用程序就会成功运行

但我想用 Supervisor 在 nginx 上运行我的应用程序这是我的配置：

nginx /etc/nginx/sites-available/default：

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration
#
server {
        listen 80 default_server;
        listen [::]:80 default_server;

        # SSL configuration
        #
        # listen 443 ssl default_server;
        # listen [::]:443 ssl default_server;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: https://bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: https://bugs.debian.org/765782
        #
        # Self signed certs generated by the ssl-cert package
        # Don't use them in a production server!
        #
        # include snippets/snakeoil.conf;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name _;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
                proxy_pass http://localhost:5000;
                proxy_http_version 1.1;
                 proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection keep-alive;
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #       include snippets/fastcgi-php.conf;
        #
        #       # With php7.0-cgi alone:
        #       fastcgi_pass 127.0.0.1:9000;
        #       # With php7.0-fpm:
        #       fastcgi_pass unix:/run/php/php7.0-fpm.sock;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #}

        }


# Virtual Host configuration for example.com
#
# You can move that to a different file under sites-available/ and symlink that
# to sites-enabled/ to enable it.
#
#server {
#       listen 80;
#       listen [::]:80;
#
#       server_name example.com;
#
#       root /var/www/example.com;
#       index index.html;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}

主管/etc/supervisor/conf.d/webapi.conf：

[program:webapi]
command=/usr/bin/dotnet /var/webapi/WebApi.dll --server.urls:http://*:5000
directory=/var/webapi/
autostart=true
autorestart=true
stderr_logfile=/var/log/webapi.err.log
stdout_logfile=/var/log/webapi.out.log
environment=ASPNETCORE_ENVIRONMENT=Production
user=www-data
stopsignal=INT

我收到了这样的错误：

sudo tail -f /var/log/supervisor/supervisord.log

User@ubuntu:~/projects/WebApi$ sudo tail -f /var/log/supervisor/supervisord.log
2016-11-05 04:36:02,701 WARN Included extra file "/etc/supervisor/conf.d/webapi.conf" during parsing
2016-11-05 04:36:02,709 INFO RPC interface 'supervisor' initialized
2016-11-05 04:36:02,710 CRIT Server 'unix_http_server' running without any HTTP authentication checking
2016-11-05 04:36:02,710 INFO supervisord started with pid 10214
2016-11-05 04:36:03,713 INFO spawned: 'webapi' with pid 10217
2016-11-05 04:36:03,823 INFO exited: webapi (terminated by SIGABRT; not expected)
2016-11-05 04:36:04,826 INFO spawned: 'webapi' with pid 10224
2016-11-05 04:36:04,936 INFO exited: webapi (terminated by SIGABRT; not expected)
2016-11-05 04:36:06,941 INFO spawned: 'webapi' with pid 10246
2016-11-05 04:36:07,054 INFO exited: webapi (terminated by SIGABRT; not expected)
2016-11-05 04:36:10,060 INFO spawned: 'webapi' with pid 10255
2016-11-05 04:36:10,169 INFO exited: webapi (terminated by SIGABRT; not expected)
2016-11-05 04:36:11,171 INFO gave up: webapi entered FATAL state, too many start retries too quickly

我认为我的配置有问题。有人能帮忙吗？

答案1

这里有错误： -和之间--server.urls:http://*:5000应该有一个。=server.urlshttp...

因此你需要将其更正为 --server.urls=http://*:5000

答案2

确保您的.conf 主管文件使用您发布的.dll。

如果您查看 Scott 的文件（如下所示），请确保您发布的 dll 是文件中的 dll。对我来说，它是 testweb.dll。

http://www.hanselman.com/blog/PublishingAnASPNETCoreWebsiteToACheapLinuxVMHost.aspx

[program:dotnettest]
command=/usr/bin/dotnet /var/dotnettest/testweb.dll --server.urls:http://*:5123
directory=/var/dotnettest/
autostart=true
autorestart=true
stderr_logfile=/var/log/dotnettest.err.log
stdout_logfile=/var/log/dotnettest.out.log
environment=ASPNETCORE_ENVIRONMENT=Production
user=www-data
stopsignal=INT

我遇到了一些其他问题，已在这里发布了... https://stackoverflow.com/questions/42243966/asp-net-core-on-ubuntu-16-04-gives-me-bad-gateway

答案3

我遇到了同样的问题，并通过将第一行更改为使用 --port=5010 而不是 --server.urls:http://*:5010 来解决它

通过查看错误日志，我获得了有关错误发生位置的更多详细信息：

$ cat /var/log/supervisor/testapp.err.log

当我运行该命令时，看到以下错误：

Unhandled Exception: System.FormatException: Value for switch '--server.urls:http://*:5010' is missing.

这让我想到要换个开关，--port而不是--server在看了Supervisor 配置文件文档

将我的 .conf 文件的第一行更改为如下所示即可解决问题：

command=/usr/bin/dotnet /var/dotnettest/testapp.dll --port=5010

答案4

我知道这个问题已经有 2 年了，但对于任何浏览此问题的人来说

查看您的 Supervisor .conf 设置，您有一个可以读取的应用程序错误日志，请尝试以下命令：

sudo nano /var/log/webapi.err.log

我收到了一条 SIGABRT 消息，因为我的应用程序无法加载结构不良的 JSON，该 JSON 仅在上面提到的 err.log 中识别。

我也分配了错误的端口--server.urls:http或--server.urls=http，但这只会生成 502 nginx 页面。

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