perfSONAR User Q&A and Other Discussion

[Piotr Pikusa <>]

Hi Peter!

It's bad to hear about such a long timeouts. Could you send me more 
information about your query path? Which tab and tool of psUI did you 
use to generate this query? What period of time did you mark? Did query  
concern all the interfaces?  Could  you also  please send me more info 
about size of your base? If it would be more comfortable for you, you 
are pleased to send me any sensitive information to my e-mail and pass 
over perfsonar-user group.

Cheers
Piotr Pikusa

P.Heiligers wrote:
> Dear all,
>
> my name is Peter from DFN-NOC Stuttgart, we have a perfsonar RRDMA 3.2 
> installation running  on a Intel Xeon
> machine with debian linux.
>
> Installed is:
>
> ii  perfsonar-java-rrd-ma                                   
> 3.2                          perfSONAR Round Robin Database
>
> We are experiencing timeouts and long delays from PerfsonarUI and 
> other tools used by colleagues , accessing the RRDMA.
> Our RRDMA contains 740 interfaces right now. The Log data shown are in 
> response to a PerfsonarUI metrics query. As you see, requests are 
> serviced after more than 6 minutes. Almost any application is timed 
> out than.
> What is happening here, any idea ? A problem with the exist database ? 
> As one finds this in the log:
>
> 2009-11-03 18:52:58,640 %GEANT2-JAVA-RRD-MA.ERROR% 
> MetadataConfigurationStorageManager.executeQuery: Connection to xml 
> database failed: org.perfsonar.base.exceptions.PerfSONARException: 
> [error.common.storage.xmldb.query]: Can't perform XQuery: 
> java.lang.NullPointerException
>
> Are there simply too many interfaces in the system ?
>
>
>
> With best regards, Peter Heiligers
>
>
>
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