Blank Page on AppDynamics GUI on some tabs

[CommunityUser]

Hi,

I have installed an on-premise version of AppDynamics on my server and currently I'm trying to monitor a web application. The problem is, after logging into the controller, I see a red banner that says "Network Communication Error" which disappears after a while.

I am using nginx to route the UI controller requests to my server. So its like "https://mydomain.com/controller" which then goes to one of my servers which has the controller.

Now, I can see information in some of the tabs- Business Transactions, Dashboard homepage, but when I try to go "Transaction Analysis" or "Transaction Snapshots" the right part of the screen goes blank and UI below the Appdynamics Logo/Branding freezes.

In my browser console, I get following errors:

GET https://corpsite.appdynamics-static.com/sites/default/files/banner_ad_600x34.png 403 (Forbidden)
/controller/messagebroker/amfsecure:1 POST https://mydomain.com/controller/messagebroker/amfsecure 500 (Internal Server Error)
js-lib-body-concat.js?20150416-172620:10906 8:40:50 AM | ERROR | GLOBAL_LOGGER | Network communication errorjs-lib-body-concat.js?20150416-172620:10906 (anonymous function)SharedModuleCode.js?20150416-172620:112 ADAngularLogger.errorSharedModuleCode.js?20150416-172620:112 ADLoggerService.errorSharedModuleCode.js?20150416-172620:112 ADLoggerService.errorMainAppModuleCode.js?20150416-172620:620 FlashService.displayProblemMessageVM3475:1 (anonymous function)

In the glassfish server logs:

#|2015-04-27T18:00:37.021+0530|WARNING|glassfish3.1.2|javax.enterprise.system.container.web.com.sun.enterprise.web._vs.server|_ThreadID=167;_ThreadName=Thread-34;|StandardWrapperValve[MessageBrokerServlet]: PWC1406: Servlet.service() for servlet MessageBrokerServlet threw exception
flex.messaging.security.SecurityException: Secure endpoint '/messagebroker/amfsecure' must be contacted via a secure protocol.
at flex.messaging.endpoints.AbstractEndpoint.validateRequestProtocol(AbstractEndpoint.java:1124)
at flex.messaging.endpoints.AbstractEndpoint.service(AbstractEndpoint.java:794)
at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.java:258)
at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java:377)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at com.singularity.ee.controller.servlet.CsrfFilter.doFilter(CsrfFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:121)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:554)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:533)
at java.lang.Thread.run(Unknown Source)

Kindly suggest. I am using AppDynamics ver 4.0.4

With Regards,

[Arun_Dasetty]

Hi,

Can you please let us know how it goes after making following changes in corresponding files, please make sure you take backup files that we suggested to modify before update:

Edit the file <Controller_install_dir>/appserver/glassfish/domains/domain1/applications/controller/controller-web_war/WEB-INF/flex/services-config.xml and modify the below xml

And edit this section

#FROM

<channel-definition id="my-secure-amf" class="mx.messaging.channels.SecureAMFChannel">
<endpoint url="https://{server.name}:{server.port}/{context.root}/messagebroker/amfsecure" class="flex.messaging.endpoints.SecureAMFEndpoint"/>
<properties>
<add-no-cache-headers>false</add-no-cache-headers>
<connect-timeout-seconds>10</connect-timeout-seconds>
</properties>
</channel-definition>

--By setting "flex.messaging.endpoints.SecureAMFEndpoint" to "flex.messaging.endpoints.AMFEndpoint"

#TO
<channel-definition id="my-secure-amf" class="mx.messaging.channels.SecureAMFChannel">
<endpoint url="https://{server.name}:{server.port}/{context.root}/messagebroker/amfsecure" class="flex.messaging.endpoints.AMFEndpoint"/>
<properties>
<add-no-cache-headers>false</add-no-cache-headers>
<connect-timeout-seconds>10</connect-timeout-seconds>
</properties>
</channel-definition>

- You would need to clear out any browser caches and restart glassfish.

Please refer to http://livedocs.adobe.com/blazeds/1/blazeds_devguide/help.html?content=lcconfig_5.html or http://flex4java.blogspot.in/2012/04/blazeds-lcds-and-flex-java-interaction.html for more details.

Regards,

Arun

[CommunityUser]

Hi,

I made the above change but now glassfish refuses to start:


org.apache.catalina.LifecycleException:
org.apache.catalina.LifecycleException: javax.servlet.UnavailableException:
Cannot create class of type
'flex.messaging.endpoints.AMFEndPoint'.
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:5389)
at com.sun.enterprise.web.WebModule.start(WebModule.java:498)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:917)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901)

[CommunityUser]

Hi,

It works now. Earlier I made a mistake putting the class file name -AMFEndpoint vs AMFEndPoint!

Anyway, is there is any impact on data security with this change?

With Regards,

Aman

[Arun_Dasetty]

Hi,

Glad to hear that news from you, we do not expect any impact with the changes suggested, let us know if you see any issues

Regards,

Arun