perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Barney;
> I'd got most of the prerequisites installed from pre-release versions. 
> Just needed eXist and a the 1.5 version of JAVA.  However the 
> instructions for the actual install of the perfsonar stuff is worse 
> than it was before (in my opinion).  I kinda managed to get the last 
> snapshot working but with this I don't know where to start.
>
> The docs for the actual install seem to be non existant.
> I also get and error :
> Split loop at -e line 1, <> line 1.
>
> During install of both the gui version and the headless install.
>
> On the headless install it happens just after :
> Do you want the installer to configure eXist for you?[y/n]: y
> eXist admin password:
>
> A backup of the old eXist database will be in '/opt/perfSONAR-1.0/conf'.
> Running the 'restore' shell script will roll back the database.
>
> looks like there is and error in the load-exist.sh script .. I think 
> it is the split command for the url for the exist db.
> @exist = split(/xmldb:exist:\/\/\w+:\d+\/exist\/xmlrpc/, $array[0]);
> I believe it needs to be :
> @exist = split(/xmldb:exist:\/\/\w+:\d+\/exist\/xmlrpc/, '$array[0]');
>
> however even that doesn't work properly as nothing goes in the db and 
> in  log/exist..install there is  :
>
> Could not retrieve collection /db
> java.lang.NullPointerException
>         at 
> org.exist.client.InteractiveClient.shutdown(InteractiveClient.java:2247)
>         at 
> org.exist.client.InteractiveClient.run(InteractiveClient.java:2038)
>         at 
> org.exist.client.InteractiveClient.main(InteractiveClient.java:234)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
>
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.exist.start.Main.invokeMain(Main.java:117)
>         at org.exist.start.Main.run(Main.java:364)
>         at org.exist.start.Main.main(Main.java:48
>
> So do I want to want the MA to use an eXist database?
> Do I want the allow the MA to store data? (what does this mean ?)
>
> If I use the eXist db method how do I add/modify MA's.

Please file a bug report so we can work to fix these errors:

http://wiki.perfsonar.net/jra1-wiki/index.php/PerfSONAR_v1.0#Filing_Bugs

-jason