perfSONAR User Q&A and Other Discussion

[Michael Michalis <>]

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Stijn Melis wrote:
| Sorry, forgot to add Michalis to the addressees.
|

Hi all,

I find this very strange. Is the perfsonar-webadmin jar inside the 
WEB-INF/lib/
~ directory?



Michalis

| Cheers,
|
| Stijn
|
| Stijn Melis wrote:
|> Hi Christian,
|>
|> Rodesch Christian wrote:
|>> Hi,
|>>
|>> I already installed the SSHTelnet MP from perfsonar 2.2 and in
|>> combination with the Looking Glass client, it worked quite well.
|>> Now, I installed the new Service of perfSONAR 3.0 and I only got a lot
|>> of problems:
|>>
|>> 1) The Web IF is not working, if I open the URL, the main page appears
|>> like it should,but if I click on any link like Basic Setup, I get this
|>> message:
|>>
|>> 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
|>> perfSONARWebAdmin.admin.wizard.Wizard
|>>     
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
|>>
|>>     
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
|>>
|>>     
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
|>>
|>>     
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
|>>
|>>     
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
|>>
|>>     java.lang.Thread.run(Thread.java:595)
|>>
|>> root cause
|>>
|>> java.lang.NullPointerException
|>>     
org.apache.catalina.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:1967)
|>>
|>>     
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1759)
|>>
|>>     
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:872)
|>>
|>>     
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1327)
|>>
|>>     
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206)
|>>
|>>     java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
|>>     java.lang.Class.getDeclaredConstructors0(Native Method)
|>>     java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
|>>     java.lang.Class.getConstructor0(Class.java:2671)
|>>     java.lang.Class.newInstance0(Class.java:321)
|>>     java.lang.Class.newInstance(Class.java:303)
|>>     
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
|>>
|>>     
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
|>>
|>>     
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
|>>
|>>     
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
|>>
|>>     
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
|>>
|>>     java.lang.Thread.run(Thread.java:595)
|>>
|>> note The full stack trace of the root cause is available in the Apache
|>> Tomcat/6.0.16 logs.
|>> Apache Tomcat/6.0.16
|>>
|>>
|>> The log shows me the following:
|>>
|>> 2008-05-27 16:01:31,692 DEBUG - In AxisServletBase init
|>> 2008-05-27 16:01:31,705 DEBUG - Enter: getEngine()
|>> 2008-05-27 16:01:31,717 DEBUG -
|>> getBundle(org.apache.axis,org.apache.axis.i18n,resource,null,...)
|>> 2008-05-27 16:01:31,726 DEBUG - loadBundle: Ignoring
|>> MissingResourceException: Can't find bundle for base name
|>> org.apache.axis.resource, locale en_US
|>> 2008-05-27 16:01:31,726 DEBUG - Created org.apache.axis.i18n.resource,
|>> linked to parent null
|>> 2008-05-27 16:01:31,727 DEBUG -
|>> getBundle(org.apache.axis,org.apache.axis.utils,resource,null,...)
|>> 2008-05-27 16:01:31,729 DEBUG - loadBundle: Ignoring
|>> MissingResourceException: Can't find bundle for base name
|>> org.apache.axis.utils.resource, locale en_US
|>> 2008-05-27 16:01:31,729 DEBUG - loadBundle: Ignoring
|>> MissingResourceException: Can't find bundle for base name
|>> org.apache.axis.resource, locale en_US
|>> 2008-05-27 16:01:31,729 DEBUG - Root package not found, cross link to
|>> org.apache.axis.i18n.resource
|>> 2008-05-27 16:01:31,729 DEBUG - Root package not found, cross link to
|>> org.apache.axis.i18n.resource
|>> 2008-05-27 16:01:31,729 DEBUG -
|>> org.apache.axis.i18n.resource::handleGetObject(engineFactory)
|>> 2008-05-27 16:01:31,729 DEBUG - Got EngineFactory:
|>> org.apache.axis.configuration.EngineConfigurationFactoryServlet
|>> 2008-05-27 16:01:31,732 DEBUG -
|>> org.apache.axis.i18n.resource::handleGetObject(readOnlyConfigFile)
|>> 2008-05-27 16:01:31,732  INFO - Configuration file read-only so engine
|>> configuration changes will not be saved.
|>> 2008-05-27 16:01:31,736 DEBUG - Enter:
|>> DefaultAxisServerFactory::getServer
|>> 2008-05-27 16:01:31,736 DEBUG - Enter:
|>> DefaultAxisServerFactory::getEngineConfiguration
|>> 2008-05-27 16:01:31,736 DEBUG - Exit:
|>> DefaultAxisServerFactory::getEngineConfiguration
|>> 2008-05-27 16:01:31,738 DEBUG - Enter: AxisEngine::init
|>> 2008-05-27 16:01:32,076 DEBUG -
|>> org.apache.axis.i18n.resource::handleGetObject(attachEnabled)
|>> 2008-05-27 16:01:32,076 DEBUG - Attachment support is enabled?  true
|>> 2008-05-27 16:01:32,092 DEBUG - Enter/Exit:
|>> JAFDataHandlerDeserializerFactory(class java.lang.String,
|>> {http://xml.apache.org/xml-soap}PlainText)
|>> 2008-05-27 16:01:32,094 DEBUG -
|>> org.apache.axis.i18n.resource::handleGetObject(oddDigits00)
|>> 2008-05-27 16:01:32,094 DEBUG -
|>> org.apache.axis.i18n.resource::handleGetObject(badChars01)
|>> 2008-05-27 16:01:32,136 DEBUG - Enter/Exit:
|>> JAFDataHandlerDeserializerFactory(class java.awt.Image,
|>> {http://xml.apache.org/xml-soap}Image)
|>> 2008-05-27 16:01:32,137 DEBUG - Enter/Exit:
|>> JAFDataHandlerDeserializerFactory(class
|>> javax.mail.internet.MimeMultipart,
|>> {http://xml.apache.org/xml-soap}Multipart)
|>> 2008-05-27 16:01:32,138 DEBUG - Enter/Exit:
|>> JAFDataHandlerDeserializerFactory(interface javax.xml.transform.Source,
|>> {http://xml.apache.org/xml-soap}Source)
|>> 2008-05-27 16:01:32,139 DEBUG - Enter/Exit:
|>> JAFDataHandlerDeserializerFactory(class
|>> org.apache.axis.attachments.OctetStream,
|>> {http://xml.apache.org/xml-soap}octet-stream)
|>> 2008-05-27 16:01:32,139 DEBUG - Enter/Exit:
|>> JAFDataHandlerDeserializerFactory()
|>> 2008-05-27 16:01:32,196 DEBUG - Exit: AxisEngine::init
|>> 2008-05-27 16:01:32,196 DEBUG - Exit: 
DefaultAxisServerFactory::getServer
|>> 2008-05-27 16:01:32,196 DEBUG - Exit: getEngine()
|> Honestly, I have no idea what is causing this. Did you use the war, rpm
|> or deb file? Which log file are you talking about, because there are
|> several?
|> Maybe Michalis can give some more information about this too, since he
|> is responsible for the WebAdmin.
|>
|>> 2) Therefore I configured everything by hand, the service.properties and
|>> the xml file. I also uploaded the file to the eXist database. When I
|>> then open the Looking Glass it depends on my luck whether I get the
|>> configured router and the commands,or if I get a popup with an error
|>> message. So the fact that once or twice I got the list with the commands
|>> I wrote in the xml file, shows that the xml is ok and correctly uploaded
|>> to the eXist database.
|> The password for the devices should be encrypted in Base64. You can use
|> the SSHTELNET MP configuration tool for this. You can find it here:
|>
|> 
http://wiki.perfsonar.net/jra1-wiki/index.php/SSH-Telnet-download#Configuration_script_to_be_used_together_with_version_1.3
|>
|>
|> If you entered the password in plain text in the metadata configuration
|> file, it will not work. You will however still see the devices and
|> commands like you do now, but they won't work.
|>
|> About the Looking Glass: I am aware that it is not working properly as
|> it should and that is gives too much errors when trying to do something.
|> I am busy integrating the Looking Glass into psUI, so you will have a
|> new version to use very soon.
|>
|>
|>> 3) As I used the SSHTelnet service of perfsonar bundle 2.2, I miss the
|>> option to chose whether to connect by Telnet or SSH in the xml meta data
|>> file. Is there an xml element for this?
|> This is still there. If you use the configuration tool I mentioned
|> above, you will still have the same options as in 2.2 (it's actually the
|> same script, but on a standalone basis). However, if you want to change
|> it manually, you have to change the class_name element. For example, for
|> a Cisco Telnet connection you have to enter:
|>
|> 
org.perfsonar.service.measurementPoint.lookingGlassType.engine.adapters.CiscoAdapter
|>
|>
|> other possibilities are:
|>
|> org.<...>.adapters.CiscoSshAdapter   -> Cisco/SSH
|> org.<...>.adapters.CiscoKeyAdapter   -> Cisco/SSH with a key
|> org.<...>.adapters.JuniperAdapter    -> Juniper/Telnet
|> org.<...>.adapters.JuniperSshAdapter -> Juniper/SSH
|> org.<...>.adapters.JuniperKeyAdapter -> Juniper/SSH with a key
|>
|> Please not however that if you change the type of connection, some other
|> parameters will get a different meaning. For example, if you use a Key,
|> the password parameter has no meaning, and should be replaced by a
|> keyUrl parameter, which specifies the path to the key, and you could
|> also add a passphrase parameter, which indicates a possible password for
|> your key.
|>
|> So, to make it short, I'd advise you to use the configuration tool,
|> since this will solve the problem with the Base64 encoding of the
|> password, as well as ask you all the right questions according to the
|> chosen type of connection/device.
|>
|>
|>> I hope I'm not bothering you too much, but I really like the concept of
|>> perfSONAR and I'm trying my best to get the services to work.
|>>
|>> Regards,
|>>
|>> Christian
|> Regards,
|>
|> Stijn
|

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