perfSONAR User Q&A and Other Discussion

[Tijmen van den Brink <>]

A quick update: Maciej kindly reminded me of the HTTP connector and the 
XMLRPC-like url. With the web client I was able to login using the 
XMLRPC-like url.
So I reconfigured the LookupService by issueing the command: ant configure

Then when the script asked me I told it to use xmlrpc instead of http. 
(I would like to use HTTP because it stated it would be much faster but 
for now I just wanted it to work)

I changed the portnumber in service.properties from 8680 to 8080 and 
restarted tomcat. This however didn't help. When I test the service I 
get the following error:

tijmen@perfsonar:~/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/ant$ ant 
-f build-xmlls.xml test-echo
Buildfile: build-xmlls.xml
Overriding previous definition of reference to classpath

copy-config-files-for-test:
    [copy] Copying 1 file to 
/home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/build/perfsonar/conf

test-echo:
    [java] Test: LS TESTING: [query] in [RequestHandler]
    [java] Test: XML File = 
file:///home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/schema/example-instances/perfSONAR/LS/test/EchoRequest.xml
    [java] AuxiliaryComponentManager.initManager: Read config file name 
as: 
/home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/build/perfsonar/conf/components.properties
    [java] AUX ComponentManager create [config] = 
org.perfsonar.commons.auxiliary.components.configuration.properties.PropertiesConfigurationComponent
    [java] AUX ComponentManager: init [config]
    [java] PropertiesConfigurationComponent.initComponent:Read the file 
name as: 
/home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/build/perfsonar/conf/service.properties
    [java] AUX ComponentManager create [logger] = 
org.perfsonar.commons.auxiliary.components.logger.log4j.Log4jLoggerComponent
    [java] AUX ComponentManager: init [logger]
    [java] java.lang.NullPointerException
    [java]     at 
org.perfsonar.service.commons.storage.xmldb.exist.xmlrpc.ExistDbXmlrpcXmlStorageManager.fetch(Unknown 
Source)
    [java]     at 
org.perfsonar.service.lookupService.xmlType.EchoRequestAction.getDBDateTime(Unknown 
Source)
    [java]     at 
org.perfsonar.service.lookupService.xmlType.EchoRequestAction.performAction(Unknown 
Source)
    [java]     at 
org.perfsonar.service.lookupService.xmlType.XmlTypeLSServiceEngine.takeAction(Unknown 
Source)
    [java]     at 
org.perfsonar.commons.messages.EchoRequest.executeEcho(Unknown Source)
    [java]     at 
org.perfsonar.commons.messages.EchoRequest.execute(Unknown Source)
    [java]     at 
org.perfsonar.service.web.RequestHandler.acceptCall(Unknown Source)
    [java]     at 
org.perfsonar.client.testHarness.LSTestClient.testRequestHandler(Unknown 
Source)
    [java]     at 
org.perfsonar.client.testHarness.LSTestClient.main(Unknown Source)

BUILD SUCCESSFUL
Total time: 7 seconds


Could this have anything todo with collection data missing?

Here is my service.properties




###############################################################################
##
##  Service configuration file
##  for Lookup Service
##
##  
---------------------------------------------------------------------------
##  Generated from template written by Maciej Glowiak
##  
---------------------------------------------------------------------------
##
##  $Id: service.properties.ls-template 1885 2007-01-08 10:18:48Z mac $ $
##  Project: perfSONAR
##
###############################################################################

## --- general service properties  
--------------------------------------------------------

service.name=XML-LS-1.1.1

# --- directories 
-------------------------------------------------------------------------

service.basepath=/home/tijmen/perfsonar-bundle-2.0/tomcat/webapps
service.log.log4j.config=/home/tijmen/perfsonar-bundle-2.0/tomcat/webapps/XML-LS-1.1.1/WEB-INF/classes/perfsonar/conf/log4j.properties
service.sax_parser.config=/home/tijmen/perfsonar-bundle-2.0/tomcat/webapps/XML-LS-1.1.1/WEB-INF/classes/perfsonar/conf/objects.config
service.log.dir=/home/tijmen/perfsonar-bundle-2.0/tomcat/webapps/XML-LS-1.1.1/log

# --- registration 
------------------------------------------------------------------------
#      name of parameter which starts with "service.r." indicates that
#       this parameter belongs to the Lookup Information

service.r.type=ls
service.r.access_point=http://perfsonar.tvdbrink.practicum.os3.nl:8080/XML-LS-1.1.1
service.r.service_name=Test Lookup Service
service.r.service_type=LS
service.r.service_description=Test Lookup Service, perfSONAR

# Lookup Service to register to - only for Registration to LS
#service.r.ls_url=%R_LOOKUP_SERVICE%

# --- cleanup 
-----------------------------------------------------------------------------

service.ls.ttl=3600

# --- Lookup Service properties 
--------------------------------------------------------

# Database username and password for ls_storage

service.ls.db_type=xmlrpc
service.ls.db_uri=xmldb:exist://127.0.0.1:8080/exist/xmlrpc
service.ls.db_username=manager
service.ls.db_password=MyPassword

#LS Cleanup loader
component.ls_cleanup_loader.interval=300
component.ls_cleanup_loader.scheduler_component=ls_scheduler
component.ls_cleanup_loader.storage_component=ls_storage

#Registrator loader - enable this secion if registration to another LS 
should be enabled
#component.registrator.interval=%REGISTER_INTERVAL%
#component.registrator.scheduler_component=ls_scheduler
#Updates
#Allow re-registration (simple update)
service.ls.allow_replace=yes

#test
ls.test.server=http://127.0.0.1:8080/XML-LS-1.1.1


# --- Service properties 
---------------------------------------------------------------

service.ls.class_name=org.perfsonar.service.lookupService.xmlType.XmlTypeLSServiceEngine
service.ls.message_types=LSQueryRequest,LSRegisterRequest,LSDeregisterRequest,LSKeepaliveRequest,EchoRequest

# ------- END 
--------------------------------------------------------------------------




Loukik Kudarimoti schreef:
> On 8 Jun 2007, at 13:11, Tijmen van den Brink wrote:
>
> > Hi everyone,
> >
> > I'm a student of the University of Amsterdam and doing a study on the 
> > possible use of perfSONAR in the GLIF infrastructure. I installed the 
> > LookupService with the use of the perl install script. It looked like 
> > everything went smoothly. However when I did a test-echo it gave me 
> > the following error:
> >
> > LS EchoRequest (Test DB Connection) error: Database connection to the 
> > LookupService is not established. Nested exception is : XQuery by 
> > HTTP failed. Could not connect to eXist via pure http,  nested 
> > exception was: class java.net.ConnectException : Connection refused
> >
> > I checked the credentials of the user but they seem to be right. Can 
> > somebody help me?
> Hi Tijmen,
>
> We need some information from you to help. Here is how to find it
>
> 1. Find service.properties file (  
> perfsonar-bundle-2.0/webapps/XML-LS-1.1.1/WEB-INF/classes/conf/perfsonar/) 
>
>
> 2. Mail us this service.properties file (you can remove username and 
> password entries before mailing it to us)
>
>
> Its very likely that the xml db url that you provided was incorrect. 
> We should be able to correct it easily after having a look at the 
> service.properties file.
>
> Loukik.
>
> > Best regards,
> >
> > Tijmen
> >
> >
> >
> > This is the complete output:
> >
> > tijmen@perfsonar:~/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/ant$ 
> > ant -f build-xmlls.xml test-echo
> > Buildfile: build-xmlls.xml
> > Overriding previous definition of reference to classpath
> >
> > copy-config-files-for-test:
> >
> > test-echo:
> >    [java] Test: LS TESTING: [query] in [RequestHandler]
> >    [java] Test: XML File = 
> > file:///home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/schema/example-instances/perfSONAR/LS/test/EchoRequest.xml 
> >
> >    [java] AuxiliaryComponentManager.initManager: Read config file 
> > name as: 
> > /home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/build/perfsonar/conf/components.properties 
> >
> >    [java] AUX ComponentManager create [config] = 
> > org.perfsonar.commons.auxiliary.components.configuration.properties.PropertiesConfigurationComponent 
> >
> >    [java] AUX ComponentManager: init [config]
> >    [java] PropertiesConfigurationComponent.initComponent:Read the 
> > file name as: 
> > /home/tijmen/perfsonar-bundle-2.0/XML-LS-1.1.1/perfsonar/build/perfsonar/conf/service.properties 
> >
> >    [java] AUX ComponentManager create [logger] = 
> > org.perfsonar.commons.auxiliary.components.logger.log4j.Log4jLoggerComponent 
> >
> >    [java] AUX ComponentManager: init [logger]
> >    [java] AUX ComponentManager create [ls_scheduler] = 
> > org.perfsonar.commons.auxiliary.components.simplescheduler.Scheduler
> >    [java] AUX ComponentManager: init [ls_scheduler]
> >    [java] AUX ComponentManager create [ls_cleanup_loader] = 
> > org.perfsonar.service.lookupService.xmlType.LSCleanupLoader
> >    [java] AUX ComponentManager: init [ls_cleanup_loader]
> >    [java] [D] authorization Basic manager:myPasswordButThatJust4Me
> >    [java] Output [683b]: <?xml version="1.0" encoding="UTF-8"?>
> >    [java] <nmwg:message id="msg1_resp" messageIdRef="msg1" 
> > type="EchoResponse">
> >    [java]     <nmwg:metadata id="resultCodeMetadata">
> >    [java]         
> > <nmwg:eventType>error.common.storage.xmldb.open</nmwg:eventType>
> >    [java]     </nmwg:metadata>
> >    [java]     <nmwg:data 
> > id="resultDescriptionData_for_resultCodeMetadata" 
> > metadataIdRef="resultCodeMetadata">
> >    [java]         <nmwgr:datum>LS EchoRequest (Test DB Connection) 
> > error: Database connection to the LookupService is not established. 
> > Nested exception is : XQuery by HTTP failed. Could not connect to 
> > eXist via pure http,  nested exception was: class 
> > java.net.ConnectException : Connection refused</nmwgr:datum>
> >    [java]     </nmwg:data>
> >    [java] </nmwg:message>
> >
> >    [java] [D] authorization Basic manager:myPasswordButThatJust4Me