使用WebSocket实现Apache负载平衡

Question

我们想在侦听KVM上不同端口的两个进程之间实现请求负载均衡。

当我将URL直接放在RewriteRule中而不进行负载平衡时，一切似乎都可以正常工作。所以我认为我的配置有问题。

我的配置是：

<IfModule mod_ssl.c> 
    <virtualHost :443>
    ServerName super.secret.domain

    Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED
    <Proxy balancer://httprewrite>
            BalancerMember http://192.168.122.83:81/$1 route=1
            BalancerMember http://192.168.122.83:80/$1 route=2
            ProxySet stickysession=ROUTEID
    </Proxy>

    <Proxy balancer://wsrewrite>
            BalancerMember ws://192.168.122.83:81/$1 route=1
            BalancerMember ws://192.168.122.83:80/$1 route=2
            ProxySet stickysession=ROUTEID
    </Proxy>

    RewriteEngine On
    RewriteCond %{HTTP:Upgrade} =websocket [NC]
    RewriteRule /(.) balancer://wsrewrite/ [P,L] 

    RewriteCond %{HTTP:Upgrade} !=websocket [NC] 
    RewriteRule /(.*) balancer://httprewrite/ [P,L] 

    SSLCertificateFile /etc/letsencrypt/live/super.secret.domain/cert.pem 
    SSLCertificateKeyFile /etc/letsencrypt/live/super.secret.domain/privkey.pem Include /etc/letsencrypt/options-ssl-apache.conf
    SSLCertificateChainFile /etc/letsencrypt/live/super.secret.domain/chain.pem 
    </virtualHost>
</IfModule>

某些零件未装载其他零件。例如https://super.secret.domain/favicon.ico给出404错误。