[실무] Apache Proxypass Active/Standby 구성

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실무] Apache Proxypass Active/Standby 구성  Web/Was / IT개발운영    2021. 3. 7. 13:58 https://blog.naver.com/hanajava/222267225887

 

ㅁ 우편번호검색 Aapache 설정

- Active : 로컬 was에서 요청 처리

- Standby: http://juso.go.kr에서 요청 처리

​<VirtualHost *:80>   ServerAdmin webmaster@hana.net   ServerName  juso.hana.net   ProxyRequests Off   ProxyPreserveHost On   ProxyPass /server-info !   ProxyPass /server-status !   ProxyPass /balancer-manager !   ProxyPass / balancer://mycluster/   ProxyPassReverse / balancer://mycluster/   <Proxy balancer://mycluster>     BalancerMember ajp://127.0.0.1:8109/ disablereuse=On loadfactor=1 connectiontimeout=1     BalancerMember ajp://127.0.0.1:8209/ disablereuse=On loadfactor=1 connectiontimeout=1     BalancerMember http://juso.go.kr/ disablereuse=On status=+H  connectiontimeout=1 retry=0          ProxySet lbmethod=bytraffic     ProxySet stickysession=JSESSIONID     ProxySet nofailover=Off     ProxySet maxattempts=1   </Proxy>   <Location "/balancer-manager">     SetHandler balancer-manager     Require host localhost     Require ip 127.0.0.1 192.168.10.0/24   </Location> </VirtualHost>

#  ProxyPass / http://127.0.0.1:8180/

#  ProxyPassReverse / http://127.0.0.1:8180/

#    BalancerMember https://juso.go.kr disablereuse=On loadfactor=10 keepalive=off

#    BalancerMember http://127.0.0.1:8180/ disablereuse=On loadfactor=10 keepalive=off status=+H

 

참고 : https://httpd.apache.org/docs/2.4/howto/reverse_proxy.html

 

 

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WEB-WAS 이중화 구성 환경에서 WAS가 단일 구성(Active/Standby)인 경우에 아래 설정을 참고하세요.

 

1. Apache vhosts 설정 : cti_tomcat.conf

was01(110.47) : Active

was02(110.48) : Standby (status=+H) hot-standby

 

ㅁ 작동 방식 

Setting up a hot-standby that will only be used if no other members (or spares) are available in the load balancer set:

로드 밸런서 세트에 다른 멤버(또는 스페어)를 사용할 수 없는 경우에만 사용할 핫 스탠바이 설정

(47번 서버가 중지되면 48번 서버가 Active로 서비스 한다.)

​  ProxyRequests Off   ProxyPreserveHost On   ProxyPass /server-info !   ProxyPass /server-status !   ProxyPass /softphone/webSocketServer balancer://mycluster2/   ProxyPassReverse /softphone/webSocketServer balancer://mycluster2/   <Proxy balancer://mycluster2>     BalancerMember ws://192.168.110.47:58787 disablereuse=On loadfactor=10 keepalive=off     BalancerMember ws://192.168.110.48:58787 disablereuse=On loadfactor=10 keepalive=off status=+H     ProxySet lbmethod=bytraffic     ProxySet stickysession=JSESSIONID     ProxySet nofailover=Off     ProxySet maxattempts=1   </Proxy>   ProxyPass /softphone balancer://mycluster/   ProxyPassReverse /softphone balancer://mycluster/   <Proxy balancer://mycluster>     BalancerMember http://192.168.110.47:9204/WebSocketSoftphone disablereuse=On loadfactor=10 keepalive=off     BalancerMember http://192.168.110.48:9204/WebSocketSoftphone disablereuse=On loadfactor=10 keepalive=off status=+H     ProxySet lbmethod=bytraffic     ProxySet stickysession=JSESSIONID     ProxySet nofailover=Off     ProxySet maxattempts=1 </Proxy>

 

 

참고자료  

1. https://httpd.apache.org/docs/2.4/mod/mod_proxy.html#proxypass

 

Configuring hot spares can help ensure that a certain number of workers are always available for use per load balancer set:

ProxyPass "/" "balancer://sparecluster/"
<Proxy balancer://sparecluster>
    BalancerMember ajp://1.2.3.4:8009
    BalancerMember ajp://1.2.3.5:8009
    # The servers below are hot spares. For each server above that is unusable
    # (draining, stopped, unreachable, in error state, etc.), one of these spares
    # will be used in its place. Two servers will always be available for a request
    # unless one or more of the spares is also unusable.
    BalancerMember ajp://1.2.3.6:8009 status=+R
    BalancerMember ajp://1.2.3.7:8009 status=+R
</Proxy>

Setting up a hot-standby that will only be used if no other members (or spares) are available in the load balancer set:

ProxyPass "/" "balancer://hotcluster/"
<Proxy "balancer://hotcluster">
    BalancerMember "ajp://1.2.3.4:8009" loadfactor=1
    BalancerMember "ajp://1.2.3.5:8009" loadfactor=2.25
    # The server below is on hot standby
    BalancerMember "ajp://1.2.3.6:8009" status=+H
    ProxySet lbmethod=bytraffic
</Proxy>

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