Editing Kieker (section)

==Processing Data==

As said earlier, once enabled, Kieker will send its data to memcached. To process the data you will need to dequeue the data from memcached by simply using the supplied script.

 mkdir -p ~/kieker/logs/
 mkdir -p ~/kieker/logs/out/
 cd ~/kieker/logs/
 perl /opt/eprints3/archives/<id>/bin/kieker/dequeue_memcached.pl

And that's it! The PERL script will create all necessary files in the current directory. You can then feed the directory to Kieker's built-in tools.

For example:

 ~/kieker-1.9/bin/trace-analysis.sh -i ~/kieker/logs -o ~/kieker/logs/out/ --plot-Assembly-Component-Dependency-Graph --plot-Aggregated-Deployment-Call-Tree --plot-Container-Dependency-Graph --plot-Assembly-Operation-Dependency-Graph responseTimes responseTimeColoring 20

This will generate four different graphs in the ".dot" format. Kieker can generate other graphs, look at the available options by running ~/kieker-1.9/bin/trace-analysis.sh without any parameters.

".dot" files can be converted to SVG (then PDF), to JPEG etc using the xdot linux library (readily available via apt-get on Ubuntu) for instance:

 dot -T jpeg -o assembly-graph.jpg assemblyComponentDependencyGraph.dot

You can turn SVG files into PDF by using the free tool "inkscape" which may be invoked from the command-line.