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带有 php-fpm 的 Nginx 突然开始返回 504 网关超时

tag-icon • tag-icon nginx php-fpm ubuntu-14.04
带有 php-fpm 的 Nginx 突然开始返回 504 网关超时

我们在 Azure 平台上运行了一个临时 Ubuntu 服务器，它突然开始超时。几天前我们创建了该服务器，它运行良好。今天突然在使用时它开始返回 504。我们重新启动了 nginx 和 php-fpm，但它仍然无法正常工作。

我们尝试过像其他答案所说的那样从我们的私钥中删除密码，但这并不能解决问题。

任何帮助或故障排除建议都将不胜感激。如果您需要查看其他配置文件，请告诉我。

提前致谢！

我们的 /var/log/nginx/error.log：

2014/09/12 14:11:33 [emerg] 3854#0: SSL_CTX_use_PrivateKey_file("/etc/ssl/ssl.key/myserver.key") failed (SSL: error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt  error:0906A065:PEM routines:PEM_do_header:bad decrypt error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib)
2014/09/12 14:12:49 [error] 3887#0: *1 upstream timed out (110: Connection timed out) while reading response header from upstream, client: {MY_IP}, server: {OUR_DOMAIN}, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "{OUR_DOMAIN}"
2014/09/12 14:13:49 [error] 3887#0: *1 upstream timed out (110: Connection timed out) while reading response header from upstream, client: {MY_IP}, server: {OUR_DOMAIN}, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "{OUR_DOMAIN}"
2014/09/12 14:20:14 [error] 3955#0: *1 upstream timed out (110: Connection timed out) while reading response header from upstream, client: {MY_IP}, server: {OUR_DOMAIN}, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "{OUR_DOMAIN}"
Enter PEM pass phrase:
2014/09/12 14:20:55 [emerg] 4072#0: SSL_CTX_use_PrivateKey_file("/etc/ssl/ssl.key/myserver.key") failed (SSL: error:0906406D:PEM routines:PEM_def_callback:problems getting password error:0906A068:PEM routines:PEM_do_header:bad password read error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib)
2014/09/12 14:27:10 [alert] 4074#0: open socket #3 left in connection 3
2014/09/12 14:27:10 [alert] 4074#0: open socket #10 left in connection 4
2014/09/12 14:27:10 [alert] 4074#0: aborting
2014/09/12 14:40:08 [error] 4344#0: *5 upstream timed out (110: Connection timed out) while reading response header from upstream, client: {MY_IP}, server: {OUR_DOMAIN}, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "{OUR_DOMAIN}"
2014/09/12 14:47:44 [error] 4344#0: *8 upstream timed out (110: Connection timed out) while reading response header from upstream, client: {MY_IP}, server: {OUR_DOMAIN}, request: "GET /{REQUESTED_PATH}/ HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "{OUR_DOMAIN}", referrer: "https://{OUR_DOMAIN}/{REQUESTED_PATH}/"

我们的 /var/log/nginx/access.log：

{MY_IP} - - [12/Sep/2014:14:11:24 +0000] "GET / HTTP/1.1" 504 593 "-" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36"
{MY_IP} - - [12/Sep/2014:14:13:49 +0000] "GET / HTTP/1.1" 504 593 "-" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36"
{MY_IP} - - [12/Sep/2014:14:18:50 +0000] "GET /{REQUESTED_PATH}/ HTTP/1.1" 499 0 "https://{OUR_DOMAIN}/{REQUESTED_PATH}/" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.103 Safari/537.36"
{MY_IP} - - [12/Sep/2014:14:26:18 +0000] "GET / HTTP/1.1" 499 0 "-" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36"
{MY_IP} - - [12/Sep/2014:14:30:07 +0000] "GET / HTTP/1.1" 499 0 "-" "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36"

我们的 /etc/nginx/nginx.conf：

user www-data;
worker_processes 1;
pid /run/nginx.pid;

events {
    worker_connections 1024;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    client_body_buffer_size 10K;
    client_header_buffer_size 1k;
    client_max_body_size 32m;
    large_client_header_buffers 2 1k;

    client_header_timeout 3000;
    client_body_timeout 3000;

    fastcgi_buffers 8 128k;
    fastcgi_buffer_size 128k;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";
    gzip_min_length  1000;
    gzip_proxied expired no-cache no-store private auth;
    gzip_comp_level 2;
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # nginx-naxsi config
    ##
    # Uncomment it if you installed nginx-naxsi
    ##

    #include /etc/nginx/naxsi_core.rules;

    ##
    # nginx-passenger config
    ##
    # Uncomment it if you installed nginx-passenger
    ##

    #passenger_root /usr;
    #passenger_ruby /usr/bin/ruby;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

我们的 /var/log/php5-fpm.log：

[12-Sep-2014 14:20:49] NOTICE: configuration file /etc/php5/fpm/php-fpm.conf test is successful

我们的 /etc/php5/fpm/php-fpm.conf：

;;;;;;;;;;;;;;;;;;;;;
; FPM Configuration ;
;;;;;;;;;;;;;;;;;;;;;

{COMMENTS}

;;;;;;;;;;;;;;;;;;
; Global Options ;
;;;;;;;;;;;;;;;;;;

[global]
{COMMENTS}
pid = /var/run/php5-fpm.pid

{COMMENTS}
error_log = /var/log/php5-fpm.log

{COMMENTS}

;;;;;;;;;;;;;;;;;;;;
; Pool Definitions ;
;;;;;;;;;;;;;;;;;;;;

{COMMENTS}
include=/etc/php5/fpm/pool.d/*.conf

我们的 /etc/php5/fpm/pool.d/www.conf：

{COMMENTS}
[www]

{COMMENTS}
user = www-data
group = www-data

{COMMENTS}
listen = /var/run/php5-fpm.sock

{COMMENTS}
listen.owner = www-data
listen.group = www-data
listen.mode = 0666

{COMMENTS}
pm = dynamic

{COMMENTS}
pm.max_children = 5

{COMMENTS}
pm.start_servers = 2

{COMMENTS}
pm.min_spare_servers = 1

{COMMENTS}
pm.max_spare_servers = 3

{COMMENTS}
request_terminate_timeout = 600

{COMMENTS}
chdir = /

{COMMENTS}

软件版本：

  • nginx 版本：nginx/1.4.6（Ubuntu）
  • Ubuntu 14.04.1 LTS（GNU/Linux 3.13.0-32-generix x86_64）
  • PHP 5.5.9-1ubuntu4.3 (fpm-fcgi)
  • Zend Engine v2.5.0 和 Zend OPcache v7.0.3

答案1

如果这是独立服务器，请尝试增加 php.ini 中的超时时间。如果不是，如果它是网络的一部分，则可能存在某种后端通信问题。我昨天就遇到了一个问题，我们的数据库节点（运行 percona）和 api 节点无法建立连接。一旦我们解决了这个问题，并再次启动 nginx，问题就立即消失了。

答案2

我今天遇到了这个问题，经过 40 分钟的调试发现 php-fpm 无法正确启动。我认为发生的事情是池工作程序在 fpm 崩溃时没有停止，并且保留了 .sock 文件。一旦我手动杀死池工作程序，php fpm 就会正确启动，一切又开始正常工作。

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