在启用mod_http2并在conf文件中设置协议之后，HTTP/2配置没有运行

Question

HTTP/2似乎并不是运行在一个似乎是正确的安装之后。

我正在运行CentOS 7。

我安装了Apache的最新版本httpd-2.4.35-5.el7.x86_64，并一直试图使HTTP/2正常工作。

为此，我看到我们需要运行http2_module。这是活动的和运行的。我相信通过运行命令httpd -M已经证实了这一点。http2_module (共享)列在这些模块下面。

接下来我要做的就是在Protocols h2 h2c http/1.1标签上添加<VirtualHost ...>。我也这么做过。

最后，我有了CURLed我的URL，并且我仍然得到HTTP1.1。

CURL命令：curl -vsko /dev/null --http2 https://www.thehomepainter.com

卷曲的简短答复：

GET /HTTP1.1主机: www.thehomepainter.com用户-代理: curl/7.64.0接受:// < HTTP/1.1 200 OK

部分来自httpd.conf

Protocols h2 h2c http/1.1
<VirtualHost *:443>
    SSLEngine on
    ServerAdmin ### omitted ###
    ServerName thehomepainter.com
    ServerAlias www.thehomepainter.com
    DocumentRoot /var/www/html/
    Options -Indexes

    ProxyRequests off
    ProxyPreserveHost On
    AllowEncodedSlashes NoDecode

    ProxyPass "/" "http://localhost:3000/"
    ProxyPassReverse "/" "http://localhost:3000/"

    RequestHeader set X-Forwarded-Proto "https"
    RequestHeader set X-Forwarded-Port "443"

    Include /etc/letsencrypt/options-ssl-apache.conf
    SSLCertificateFile ### omitted ###
    SSLCertificateKeyFile ### omitted ###
    SSLCertificateChainFile ### omitted ###

    # i have tried this here as well
    # Protocols h2 h2c http/1.1
</VirtualHost>

Protocols h2 h2c http/1.1
<VirtualHost *:80>
    ServerAdmin support@thedesignguis.com
    ServerName thehomepainter.com
    ServerAlias www.thehomepainter.com
    DocumentRoot /var/www/html
    RewriteEngine on
    RewriteCond %{SERVER_NAME} =thehomepainter.com [OR]
    RewriteCond %{SERVER_NAME} =www.thehomepainter.com
    RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]

    # i have tried this here as well
    # Protocols h2 h2c http/1.1
</VirtualHost>

因此，预期的结果是HTTP/2能够工作。然而，事实并非如此，我也不知道为什么。

Answer 1

在浏览了错误日志之后，我终于发现了这个问题。

[http2:warn] [pid 7155] AH10034: The mpm module (prefork.c) is not supported by mod_http2. The mpm determines how things are processed in your server. HTTP/2 has more demands in this regard and the currently selected mpm will just not do. This is an advisory warning. Your server will continue to work, but the HTTP/2 protocol will be inactive.

为了解决这个问题，我编辑了/etc/httpd/con.Modes.d/00-mpm.conf

注释掉这一行：LoadModule mpm_prefork_module modules/mod_mpm_prefork.so

并取消评论的底线：LoadModule mpm_event_module modules/mod_mpm_event.so

重新启动apache，然后它就能工作了。