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Giuliano Casale edited this page Oct 8, 2017 · 7 revisions

QT-LIB

Sample topologies are provided in the examples folder. In particular:

  • BasicExclamationTopology.java: a variant of the classic WordCount exclamation topology where QT injects automatically tuples parsed from test.json. In the release this is a file integrated in the QT jar file. The change this file, change the JSON file name in the Maven pom.xml file
  • ExclamationTopology.java: This is a variant of the BasicExclamationTopology that cyclically increases the QT load until matching a predefined criterion, such as reaching a target bolt capacity as seen from the StormUI or the DICE Monitoring Platform (DMON).

Run mvn package to build the target topology. This can be submitted to a Storm testbed as usual. The Maven pom.xml file is configured to build by default ExclamationTopology, change

com.github.dice-project.qt.examples.ExclamationTopology

inside pom.xml to

com.github.dice-project.qt.examples.BasicExclamationTopology

to build BasicExclamationTopology.

QT-GEN

An example is provided in both source code and binary distributions.

In the source code distribution, after adding the qt-gen folders to the path, run: qt_gen_main

The example reads wc2014-100.json and generates the new trace wc2014-generated.json. The number of messages included in the new trace can be defined through the nMessages parameter in qt_config.xml.

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