perfsonar development work

[Loukik Kudarimoti <>]

Hi Jon,

Roman is on leave for a few days. In his absence, I will try to answer 
this question. He maybe able to give you a more precise answer when he 
is back.

Jon K Hellan wrote:

<snip>
> I've installed RC5 in two places. In both, the installation worked at 
> first. But after stopping tomcat, I had to add the jrrd directory 
> explicitly to LD_LIBRARY_PATH before starting tomcat again.
>
> I used
>  ant tomcat-shutdown
> and
>  LD_LIBRARY_PATH=<blah>/perfsonar/contrib/rrdjtool/build ant \
>    tomcat-start
>
> Is this the right way?
Yes. Every time you restart tomcat, you have to make sure that 
LD_LIBRARY_PATH is set and contains the values for rrdtool (the value is 
prompted during installation).

The best way to do this is to add the LD_LIBRARY_PATH declaration to the 
.bash_profile file in the home directory where Tomcat (and RRD MA) are 
installed. That way, you won't have to recall

Another way is to copy the .so files from rrdtool and rrdjtool to the 
existing directories in LD_LIBRARY_PATH.

Please make sure that you test the servicer (ant test) after you restart 
the tomcat. You can also test the service with the help of perfSONAR UI.

(I will add this info to our FAQ)

> And what is the right incantation to use after you've changed 
> rrd-database_XXX.xml? Does it make a difference if the exist database 
> is in use?
I am not sure if it makes a difference (will wait for Roman to confirm). 
Its however important that the name and location of this xml file is 
configured inside service.properties.


If you are using an eXist database, the test xml file has to be 
*replaced* with your actual one.  You can do this either manually.

Its quite easy - go to http://$serverName:$port/exist/
Scroll down on the left navigation bar and look for Admin.
Log in using either the admin username and password or the perfsonar 
user name and password. (I recommend logging in using the non-admin user 
name and password that you provided to ant installer)
Browse to the collections, choose the xml file (make sure you choose the 
xml file and not the collections). Delete the file and upload your new file.

Or  you can do this by repeated ant -q configure and ant -q deploy. 
Note, you will need to restart tomcat.

If you have problems, feel free to ask.

Loukik.

> Regards
>
> Jon