[성공] [AWS EC2 - 우분투] tomcat redis session 설정

 

 

레디스 세션 매니저 다운로드 및 설정

 

[root@ip-172-31-86-130 ~]# cd /usr/share/tomcat/

 

[root@ip-172-31-86-130 tomcat]# mkdir download

 

[root@ip-172-31-86-130 tomcat]# cd download/

 

wget https://github.com/ran-jit/tomcat-cluster-redis-session-manager/releases/download/2.0.4/tomcat-cluster-redis-session-manager.zip

--2020-07-31 14:23:04--  https://github.com/ran-jit/tomcat-cluster-redis-session-manager/releases/download/2.0.4/tomcat-cluster-redis-session-manager.zip
Resolving github.com (github.com)... 52.78.231.108
Connecting to github.com (github.com)|52.78.231.108|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://github-production-release-asset-2e65be.s3.amazonaws.com/54272419/c2323ca8-5dd4-11e8-9e90-052fe48c96dd?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20200731%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20200731T142305Z&X-Amz-Expires=300&X-Amz-Signature=8aee34e9247501fcfe00a14d07aee0fce04ae4be2a3f0d69226f3b5b9d3990c3&X-Amz-SignedHeaders=host&actor_id=0&repo_id=54272419&response-content-disposition=attachment%3B%20filename%3Dtomcat-cluster-redis-session-manager.zip&response-content-type=application%2Foctet-stream [following]
--2020-07-31 14:23:05--  https://github-production-release-asset-2e65be.s3.amazonaws.com/54272419/c2323ca8-5dd4-11e8-9e90-052fe48c96dd?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20200731%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20200731T142305Z&X-Amz-Expires=300&X-Amz-Signature=8aee34e9247501fcfe00a14d07aee0fce04ae4be2a3f0d69226f3b5b9d3990c3&X-Amz-SignedHeaders=host&actor_id=0&repo_id=54272419&response-content-disposition=attachment%3B%20filename%3Dtomcat-cluster-redis-session-manager.zip&response-content-type=application%2Foctet-stream
Resolving github-production-release-asset-2e65be.s3.amazonaws.com (github-production-release-asset-2e65be.s3.amazonaws.com)... 52.216.107.236
Connecting to github-production-release-asset-2e65be.s3.amazonaws.com (github-production-release-asset-2e65be.s3.amazonaws.com)|52.216.107.236|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 740661 (723K) [application/octet-stream]
Saving to: ‘tomcat-cluster-redis-session-manager.zip’
100%[======================================================================================================>] 740,661      742KB/s   in 1.0s   
2020-07-31 14:23:06 (742 KB/s) - ‘tomcat-cluster-redis-session-manager.zip’ saved [740661/740661]

 

 

[root@ip-172-31-86-130 download]# unzip tomcat-cluster-redis-session-manager.zip 

   Archive:  tomcat-cluster-redis-session-manager.zip
   creating: tomcat-cluster-redis-session-manager/conf/
  inflating: tomcat-cluster-redis-session-manager/conf/redis-data-cache.properties  
   creating: tomcat-cluster-redis-session-manager/lib/
  inflating: tomcat-cluster-redis-session-manager/lib/commons-logging-1.2.jar  
  inflating: tomcat-cluster-redis-session-manager/lib/commons-pool2-2.4.2.jar  
  inflating: tomcat-cluster-redis-session-manager/lib/jedis-2.9.0.jar  
  inflating: tomcat-cluster-redis-session-manager/lib/tomcat-cluster-redis-session-manager-2.0.4.jar  
  inflating: tomcat-cluster-redis-session-manager/readMe.txt

 

[root@ip-172-31-86-130 download]# cp tomcat-cluster-redis-session-manager/lib/* ../lib/

 

[root@ip-172-31-86-130 download]# cp tomcat-cluster-redis-session-manager/conf/* ../conf/

 

 

권한 변경 tomcat 하위폴더

root@ip-10-20-45-39:/opt# chown -R tomcat: tomcat/

 

 

톰캣 설정 변경

 

[root@ip-172-31-86-130 download]# vim /usr/share/tomcat/conf/redis-data-cache.properties 

—주의사항: 레디스 엔드포인트로 변경하고 설정에 맞게 비밀번호등 변경 필요, 아무설정도 하지 않았다면 엔드포인트만 변경

============== 파일내용 ==============
#-- Redis data-cache configuration

#- redis hosts ex: 127.0.0.1:6379, 127.0.0.2:6379, 127.0.0.2:6380, ....
redis.hosts= <ElastiCache-Endpoint.cache.amazonaws.com> :6379

#- redis password (for stand-alone mode)
#redis.password=

#- set true to enable redis cluster mode
redis.cluster.enabled=false

#- redis database (default 0)
#redis.database=0

#- redis connection timeout (default 2000)
#redis.timeout=2000
=================================

 

 

[root@ip-172-31-86-130 download]# vim /usr/share/tomcat/conf/web.xml 

============== 파일내용 변경==============
    <session-config>
        <session-timeout>60</session-timeout>
    </session-config>
=====================================

 

[root@ip-172-31-86-130 download]# cat /usr/share/tomcat/conf/context.xml 

— 주의사항: <Context> </Context> 사이에 <Valve className="tomcat.request.session.redis.SessionHandlerValve" />

    <Manager className="tomcat.request.session.redis.SessionManager" />넣어주면 됨

============== 파일내용 변경==============
<Context>

    <!-- Default set of monitored resources -->
    <WatchedResource>WEB-INF/web.xml</WatchedResource>

    <!-- Uncomment this to disable session persistence across Tomcat restarts -->
    <!--
    <Manager pathname="" />
    -->

    <!-- Uncomment this to enable Comet connection tacking (provides events
         on session expiration as well as webapp lifecycle) -->
    <!--
    <Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
    -->
    <Valve className="tomcat.request.session.redis.SessionHandlerValve" />
    <Manager className="tomcat.request.session.redis.SessionManager" />

</Context>
=====================================

 

 

 

 

테스트 페이지 준비

 

mkdir sample
[root@ip-172-31-86-130 download]# cd /var/lib/tomcat/webapps/sample/
/opt# chown -R tomcat: tomcat/

 

[root@ip-172-31-86-130 sample]# wget https://s3.ap-northeast-2.amazonaws.com/youngwoo.lab/download/tomcat_session_test_jsp/tomcat_session_test.jsp

--2020-07-31 14:40:34--  https://s3.ap-northeast-2.amazonaws.com/youngwoo.lab/download/tomcat_session_test_jsp/tomcat_session_test.jsp
Resolving s3.ap-northeast-2.amazonaws.com (s3.ap-northeast-2.amazonaws.com)... 52.219.58.117
Connecting to s3.ap-northeast-2.amazonaws.com (s3.ap-northeast-2.amazonaws.com)|52.219.58.117|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2922 (2.9K) [binary/octet-stream]
Saving to: ‘tomcat_session_test.jsp’
100%[======================================================================================================>] 2,922       --.-K/s   in 0s      

2020-07-31 14:40:34 (172 MB/s) - ‘tomcat_session_test.jsp’ saved [2922/2922]

 

[root@ip-172-31-86-130 sample]# ls

META-INF  WEB-INF  hello.jsp  images  index.html  session_check.jsp  tomcat_session_test.jsp

 

## 꼭 파일 변경할 것
mv tomcat_session_test.jsp index.jsp

 

 

 

 

 

 

서비스 재시작

 

[root@ip-172-31-86-130 download]# systemctl restart tomcat

 

여기까지 모든 톰캣 서버에 동일하게 진행했나요?! 
진행 했다면 세션유지 테스트로 넘어가고, 아니라면 모든 톰캣서버에 동일하게 진행합니다.!

 

 

세션 유지 확인테스트

 

재시작되는데 시간이 소요되므로 약 5분~10분후 확인 권장

크롬 시크릿창에서  ELB경로/sample/tomcat_session_test.jsp 확인

 

 

 

아래 사진처럼 Server IP는 바뀌지만 SessionID가 안바뀌면 정상입니다! 😁

 

 

 

 

 

 

 

 

 

 

 

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