perfSONAR User Q&A and Other Discussion

[Stijn Melis <>]

Sorry, forgot to add Michalis to the addressees.

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