perfSONAR User Q&A and Other Discussion

[Takatoshi Ikeda <>]

Dear Jason,

Thank you for prompt reply.

1) how long has the hLS been up?
I launched 7/2 and it's been up for a half day.
Also, I restarted the hLS several times.

2) did you set the following value in the configuration file (and if so what 
did you set it to):
I can see maintenance_interval in daemon.conf as below.

maintenance_interval            120

By the way, I found the cause of the problem.
As your suggestion, I watched the log file carefully.
The following error messages were appeared once 120 minutes.

2009/07/03 08:44:36 (26941) ERROR> daemon.pl:631 main::maintenance - Problem 
running service maintenance: Can't locate Clone.pm in @INC (@INC contains: 
/opt/perfsonar_ps/lookup_service/bin/../lib  ./lib ../lib 
/usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi 
/usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi 
/usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi 
/usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 
/usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 
/usr/lib/perl5/site_perl 
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi 
/usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi 
/usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi 
/usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7 
/usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 
/usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi 
/usr/lib/perl5/5.8.8 . ./lib ../lib) at 
/usr/lib/perl5/vendor_perl/5.8.8/Hash/Merge.pm line 231.

To solve above message, I installed perl-Clone.x86_64 manually by yum.
Then, I can see my hLS summarized information and new SNMP MA Service Tree 
Web page.
Thank you for your advice !!!


Also, I forgot to inform you important thing.
The OS of new machines is RHEL 5. Old one is CentOS 5.3 .
So, perl-Clone was not installed automatically when I installed lookup 
service by yum.
In addition, following perl modules were not installed into the directory of 
default @INC.
I made some symbolic link for that. 
Default @INC of my machines (RHEL 5) is as following. Just FYI.

# /usr/bin/perl -e 'print "@INC"'
/usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi 
/usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi 
/usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi 
/usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.8 
/usr/lib/perl5/site_perl/5.8.7 
/usr/lib/perl5/site_perl/5.8.6 
/usr/lib/perl5/site_perl/5.8.5 
/usr/lib/perl5/site_perl 
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi 
/usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi 
/usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi 
/usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.8 
/usr/lib/perl5/vendor_perl/5.8.7 
/usr/lib/perl5/vendor_perl/5.8.6 
/usr/lib/perl5/vendor_perl/5.8.5 
/usr/lib/perl5/vendor_perl 
/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi 
/usr/lib/perl5/5.8.8 


On Thu, 02 Jul 2009 10:01:51 -0400
Jason Zurawski 
<>
 wrote:

> Takatoshi;
> 
> Here is a database dump of your LS:
> 
> http://dc211.internet2.edu/cgi-bin/perfAdmin/view.cgi?hls=http://202.180.38.70:9995/perfSONAR_PS/services/hLS
> 
> The first section indicates the SNMP has registered, but I am interested 
> in the last 3 sections of this web page (scroll to the bottom) - it does 
> not appear your hLS has summarized the information set yet.  Some questions:
> 
>   1) how long has the hLS been up?
>   2) did you set the following value in the configration file (and if so 
> what did you set it to):
> 
> maintenance_interval    90
> 
>   3) Are there any errors in the log indicating that summarization failed?
> 
> A quick fix would be to just restart the hLS and see if the data 
> summarizes (this would happen almost immediately) but I would like to 
> know why it hasn't done so yet.
> 
> Thanks;
> 
> -jason
> 
> > Hi, this is Takatoshi Ikeda, APAN-JP.
> > 
> > I've installed newest Lookup Service and SNMPMA by yum repository 
> > but SNMPMA service seems not to be registered correctly. 
> > Following is detail information. 
> > Is there any information?
> > 
> > 
> > 1.Symptom
> > I installed newest  Lookup Service and SNMPMA.
> > When I launch new Lookup Service, I can see it on the Service Tree Web 
> > page.
> > https://dc211.internet2.edu/cgi-bin/perfAdmin/tree.cgi
> > Then, new SNMPMA is launched and it seems to be registered to new Lookup 
> > Service.
> > However, I can not see it on the Service Tree Web page.
> > As a experiment, I modified the configuration file of SNMPMA to register 
> > old
> > existed Lookup Service. I can see SNMPMA service on the web.
> > In order to check whether SNMPMA is registered or not, I make a request 
> > by using
> > client.pl as Section3. I got a response with SNMPMA service information.
> > However, I got any service information when I try to get all service list.
> > The results of client.pl are in Section 3.
> > 
> > 
> > 2. Software Version
> > (New LookupService and SNMPMA)
> > perl-perfSONAR_PS-LookupService-3.1-2.pSPS
> > perl-perfSONAR_PS-SNMPMA-3.1-3.pSPS
> > 
> > (old existed Lookup Service)
> > perl-perfSONAR_PS-SNMPMA-3.1-2.pSPS
> > 
> > 3. service point
> > hLS - http://202.180.38.70:9995/perfSONAR_PS/services/hLS
> > SNMPMA - http://202.180.38.69:9990/perfSONAR_PS/services/SNMPMA
> > 
> > 3. The result of LSQueryRequest
> > 4-1 SNMP service
> > 4-1-1 xquery
> >      <xquery:subject id="sub1">
> >       declare namespace 
> > perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/";;
> >       declare namespace nmwg="http://ggf.org/ns/nmwg/base/2.0/";;
> >       declare namespace 
> > psservice="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/";;
> >       
> > /nmwg:store[@type="LSStore"]/nmwg:metadata[./perfsonar:subject/psservice:service/psservice:serviceType[text()="MA"
> >  or text()="ma"]]
> >      </xquery:subject>
> > 4-1-2 result ( only data )
> >    <nmwg:data metadataIdRef="metadata.14868730" id="data.14342086">
> >     <psservice:datum 
> > xmlns:psservice="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/";>
> >      <nmwg:metadata xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/"; 
> > id="78751203f761f07991151637867ba317">    
> >       <perfsonar:subject 
> > xmlns:perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/"; 
> > id="subject.2218681">
> >        <psservice:service 
> > xmlns:psservice="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/";>
> >         <psservice:serviceName>JGN2Plus SNMP</psservice:serviceName>
> >         
> > <psservice:accessPoint>http://202.180.38.69:9990/perfSONAR_PS/services/SNMPMA</psservice:accessPoint>
> >         <psservice:serviceType>MA</psservice:serviceType>
> >         <psservice:serviceDescription>JGN2Plus SNMP MA 1 (Tokyo, 
> > Japan)</psservice:serviceDescription>
> >       </psservice:service>
> >      </perfsonar:subject>
> >     </nmwg:metadata>
> >    </psservice:datum>
> >   </nmwg:data><
> > 
> > 2-2 Service list
> > 2-2-1 xquery
> >  <xquery:subject id="sub1">
> >     declare namespace 
> > perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/";;
> >     declare namespace nmwg="http://ggf.org/ns/nmwg/base/2.0/";;
> >     declare namespace 
> > psservice="http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/";;
> >     
> > /nmwg:store[@type="LSStore"]
> >  </xquery:subject>
> > 2-2-2 result ( only data )
> >   <nmwg:data metadataIdRef="metadata.6182517" id="data.12307850">
> >    <nmwgr:datum xmlns:nmwgr="http://ggf.org/ns/nmwg/result/2.0/";>Nothing 
> > returned for search.
> >    </nmwgr:datum>
> >   </nmwg:data>

-- 
Takatoshi Ikeda 
<>