mod_proxy_balancer

mod_proxy_balancer

기존 mod_proxy 1:1 도메인 매칭 방식에서 동일한 웹 서버를 구성하여 로드밸런싱 할 수 있다.

vhost.conf

<Virtualhost *:80> ServerName wp.kensei.co.kr Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED ProxyPassMatch ^/(.*)$ "balancer://http1" ProxyPassReverse / "balancer://http1" <Proxy "balancer://http1"> BalancerMember "http://172.16.0.209" route=1 connectiontimeout=3 BalancerMember "http://172.16.1.4" route=1 connectiontimeout=3 ProxySet stickysession=ROUTEID </Proxy> </VirtualHost>

ssl.conf

<VirtualHost *:443> #        SSLProxyEngine On #        ProxyRequests Off         ProxyPreserveHost On         ServerName wp.kensei.co.kr:443         SSLCertificateFile "/root/wp.kensei.co.kr/cert3.pem"         SSLCertificateKeyFile "/root/wp.kensei.co.kr/privkey3.pem"         SSLCertificateChainFile "/root/wp.kensei.co.kr/chain3.pem"         Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED         ProxyPassMatch ^/(.*)$ "balancer://https1" #        ProxyPass "/" "balancer://https1"         ProxyPassReverse "/" "balancer://https1"         <Proxy "balancer://https1">         BalancerMember "https://172.16.0.209:443" route=1 connectiontimeout=3         BalancerMember "https://172.16.1.4:443" route=1 connectiontimeout=3         ProxySet stickysession=ROUTEID         </Proxy> </VirtualHost>

헬스체크

http://hashcode.co.kr/questions/1943/%EC%95%84%ED%8C%8C%EC%B9%98%EC%97%90-mod_proxy_balancer%EB%A5%BC-%EC%A0%81%EC%9A%A9%ED%95%A0-%EB%95%8C-failover-%EC%B2%98%EB%A6%AC%EB%8A%94-%EC%96%B4%EB%96%BB%EA%B2%8C-%ED%95%98%EB%82%98%EC%9A%94

/문자열 모두 프록시로 넘기기 (정규표현식 이용)

https://sarc.io/index.php/httpd/621-proxypassmatch-apache-http-server

source hasing 방식이 아님

브라우저 창이 닫히면 초기화 됨 브라우저 창이 열려 있는 상황에서만 분배 세션 유지됨 브라우저 기반이 아닌 웹 어플리케이션의 경우는 세션 유지 테스팅 필요