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From: "Alejandro Abdelnur (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Created] (HADOOP-10918) JMXJsonServlet fails when used
 within Tomcat
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Alejandro Abdelnur created HADOOP-10918:
-------------------------------------------

             Summary: JMXJsonServlet fails when used within Tomcat
                 Key: HADOOP-10918
                 URL: https://issues.apache.org/jira/browse/HADOOP-10918
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 2.4.1
            Reporter: Alejandro Abdelnur
            Assignee: Alejandro Abdelnur


{{JMXJsonServlet.doGet()}} has the following check:

{code}
      if (!HttpServer2.isInstrumentationAccessAllowed(getServletContext(),
                                                     request, response)) {
{code}

Loading the class {{HttpServer2}} triggers loading Jetty specific classes:

{code}
SEVERE: Servlet.service() for servlet jmx-servlet threw exception
java.lang.ClassNotFoundException: org.mortbay.jetty.servlet.Context
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
        at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:157)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.hadoop.crypto.key.kms.server.KMSMDCFilter.doFilter(KMSMDCFilter.java:84)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:438)
        at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter.doFilter(DelegationTokenAuthenticationFilter.java:255)
        at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:408)
        at org.apache.hadoop.crypto.key.kms.server.KMSAuthenticationFilter.doFilter(KMSAuthenticationFilter.java:128)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:695)
Jul 31, 2014 2:46:24 PM org.apache.catalina.core.StandardWrapperValve invoke
{code}

Because of this the JMX servlet fails to work in KMS



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