WebServer 자원 모니터링

1. Tomcat Manager Port 활성화 시키기

   - 이클립스의 Server Overview 메뉴 에서 Server Location 값을 Use Tomcat installation 으로 변경,

   - Tomcat User 등록하기

     . 톰캣 설치 디렉토리( C:\개발업무\공통 라이브러리\apache-tomcat-7.0.22\conf\ ) 와

 이클립스 프로젝트 내 톰캣 설정 디렉토리에서 (C:\개발업무\Workspace\MyProject\Servers\Tomcat v7.0 Server at localhost-config)

       에서 tomcat-users.xml 내용 수정

<tomcat-users> 

<role rolename="tomcat"/> 

<role rolename="manager"/> 

<role rolename="manager-gui"/> 

<role rolename="admin"/> 

<role rolename="admin-gui"/> 

<user roles="tomcat,manager,manager-gui,admin,admin-gui" password="tomcat" username="tomcat"/>

</tomcat-users>

위 설정을 맞추고 각자 Local Server 의 Http 서비스 포트의 /manager 로 접속하면 된다.

(ex. http://127.0.0.1:9090/manager)

위 설정대로 했는데도 아래와 같은 에러가 나타난 다면 해메지 말고 그냥 이클립스에서 Server 를 날리고 새로 잡아주자.

직접 해보고 하는 말이다. 날리고 새로 하는게 정신건강에 이롭다.

403 Access Denied

You are not authorized to view this page.

HTTP Status 500 -

---

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Error instantiating servlet class org.apache.catalina.manager.HTMLManagerServlet
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
	org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
	java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	java.lang.Thread.run(Unknown Source)

root cause

java.lang.SecurityException: Restricted (ContainerServlet) class org.apache.catalina.manager.HTMLManagerServlet
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
	org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
	java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	java.lang.Thread.run(Unknown Source)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.22 logs.

---

Apache Tomcat/7.0.22

404 Not found

The page you tried to access (/manager/html) does not exist.

The Manager application has been re-structured for Tomcat 7 onwards and some of URLs have changed. All URLs used to access the Manager application should now start with one of the following options:

• /manager/html for the HTML GUI
• /manager/text for the text interface
• /manager/jmxproxy for the JMX proxy
• /manager/status for the status pages

Note that the URL for the text interface has changed from "/manager" to "/manager/text".

You probably need to adjust the URL you are using to access the Manager application. However, there is always a chance you have found a bug in the Manager application. If you are sure you have found a bug, and that the bug has not already been reported, please report it to the Apache Tomcat team.

2. PSI - Probe 설치하기

   - http://psi-probe.googlecode.com/ 에서 설치파일 다운로드

   - 톰캣 설치 디렉토리(C:\개발업무\공통 라이브러리\apache-tomcat-7.0.22\webapps) 에 probe 디렉토리 만들고 관련 파일 압축 해제

   - 톰캣 재시작 후 /probe 경로로 접속

3. Tomcat 에서 Psi-Probe 배포하기

  - http://host/manager 로 접속

   - Deploy 메뉴에서 probe.war 경로와 접속 경로(Context Path) 를 설정하고 Deploy 해주면 됨

     ex) War URL = /nds/apache-tomcat-7.0.16/webapps/probe.war

     ex) Context Path = /probe

4. Psi-Probe 항목 살펴보기

작성 중..