mod_proxy 방식

mod_proxy 사용하여 reverse proxy로 연결

1. 주석 해제해주기 (알아보기 쉽게 하단에 옮겨줌)
   

2. 메모장(관리자모드)
   

3. 기존 jy.com말고 yjy.com으로 추가
   

4. 
   
   전체적으로 아래처럼 이렇게 세개를 추가해줘야함.
   

Load Balancing

--> 부하관리
하나의 서버 장비(H/W)에 여러개의 톰캣 WAS를 띄우는 것

1. 여러개의 톰캣을 설치해서 운영
   ex) tomcat1, tomcat2 ...

2. 톰캣 설치는 엔진부분(bin, lib ..) 하나만 하고 인스턴스 부분

• 톰캣 구성
  

멀티 인스턴스

1. 인스턴스 용 디렉토리 생성

C:\apache-tomcat-10.1.6 내에 lb01, lb02 디렉토리 생성

2. 인스턴스용 디렉토리 구성

• lb01, lb02 디렉토리에 C:\apache-tomcat-10.1.6내에 있는 conf, lib 디렉토리 복사
• lb01, lb02 디렉토리에 bin, logs, work, temp 디렉토리 생성
• lb01 디렉토리 내의 bin 디렉토리에 startup_lb01.bat, shutdown_lb01.bat
  lb02 디렉토리 내의 bin 디렉토리에 startup_lb02.bat, shutdown_lb02.bat 파일 생성

-- startup_lb01.bat

@echo off

set JAVA_HOME=C:\JDK\jdk-17.0.6
set CATALINA_HOME=C:\apache-tomcat-10.1.7
set CATALINA_BASE=C:\apache-tomcat-10.1.7\lb01
%CATALINA_HOME%/bin/startup.bat

-- shutdown_lb01.bat

@echo off

set JAVA_HOME=C:\JDK\jdk-17.0.6
set CATALINA_HOME=C:\apache-tomcat-10.1.7
set CATALINA_BASE=C:\apache-tomcat-10.1.7\lb01
%CATALINA_HOME%/bin/shutdown.bat

-- startup_lb02.bat

@echo off

set JAVA_HOME=C:\JDK\jdk-17.0.6
set CATALINA_HOME=C:\apache-tomcat-10.1.7
set CATALINA_BASE=C:\apache-tomcat-10.1.7\lb02
%CATALINA_HOME%/bin/startup.bat

-- shutdown_lb02.bat

@echo off

set JAVA_HOME=C:\JDK\jdk-17.0.6
set CATALINA_HOME=C:\apache-tomcat-10.1.7
set CATALINA_BASE=C:\apache-tomcat-10.1.7\lb02
%CATALINA_HOME%/bin/shutdown.bat

• lb01, lb02 내의 conf 디렉토리에 있는 server.xml 파일 수정
  --> 포트가 겹치지 않도록 주의

<?xml version="1.0" encoding="UTF-8"?>

<Server port="8015" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <GlobalNamingResources>
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <Service name="Catalina">

	<Connector port="8081" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8453" />

	<Connector protocol="AJP/1.3"
               address="127.0.0.1"
               port="8019"
               redirectPort="8453" 
	       secretRequired="false" />

	<Engine name="Catalina" defaultHost="localhost">
		<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
		<Realm className="org.apache.catalina.realm.LockOutRealm">
        	<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               		resourceName="UserDatabase"/>
      		</Realm>

      		<Host name="www.lb.com"  appBase="webapps"
            		unpackWARs="true" autoDeploy="true">
	
			<Context path="/" docBase= "c:/webroot_lb01"
            			unpackWARs="true" reloadable="true">
			</Context>

	        	<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               			prefix="localhost_access_log" suffix=".txt"
               			pattern="%h %l %u %t &quot;%r&quot; %s %b" />
      		</Host>
    	</Engine>
  </Service>
</Server>

<?xml version="1.0" encoding="UTF-8"?>

<Server port="8025" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <GlobalNamingResources>
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <Service name="Catalina">

	<Connector port="8082" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8463" />

	<Connector protocol="AJP/1.3"
               address="127.0.0.1"
               port="8029"
               redirectPort="8463" 
	       secretRequired="false" />

	<Engine name="Catalina" defaultHost="localhost">
		<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
		<Realm className="org.apache.catalina.realm.LockOutRealm">
        	<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               		resourceName="UserDatabase"/>
      		</Realm>

      		<Host name="www.lb.com"  appBase="webapps"
            		unpackWARs="true" autoDeploy="true">
	
			<Context path="/" docBase= "c:/webroot_lb02"
            			unpackWARs="true" reloadable="true">
			</Context>

	        	<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               			prefix="localhost_access_log" suffix=".txt"
               			pattern="%h %l %u %t &quot;%r&quot; %s %b" />
      		</Host>
    	</Engine>
  </Service>
</Server>

3. 로드밸런싱 설정

메모장(관리자모드)

• lb01만
  

• 폴더 webroot와 동일하게 lb01, lb02 만든 후 web.xml에 추가