Cooper

Co-location optimized elastic runner for microservices

Reference implementation/prototype of the CaaS middleware developed in the course of the corresponding master thesis at TU Wien / Distributed Systems Group.

Prerequisites

• Java 11
• Maven
• CPLEX 12.10.0 installed (free academic version available at https://www.ibm.com/academic/technology/data-science)

Build

First, we need to install the CPLEX JAR library in the local Maven repository for later use.

On macOS, the installation command would look like this:

$ mvn install:install-file \
    -DgroupId=cplex \
    -DartifactId=cplex \
    -Dversion=12.10.0 \
    -Dpackaging=jar \
    -Dfile=/Applications/CPLEX_Studio1210/cplex/lib/cplex.jar

Set the -Dfile path accordingly to point at the correct location of the cplex.jar file inside your CPLEX installation.

To build Cooper:

$ mvn clean install

Run Cooper

The following command runs the compiled Cooper JAR with all necessary arguments set:

$ java -jar \
    -Djava.library.path=/Applications/CPLEX_Studio1210/cplex/bin/x86-64_osx \
    -Dscenario=a \
    -Dstrategy=ILP-NC \
    -Dmultiplicator=1 \
    target/Cooper.jar

• -Djava.library.path: Set this to the binary path of your CPLEX installation (sample for macOS). Required for CPLEX to work at runtime.
• -Dscenario: The scenario configuration to use.
• -Dstrategy: The optimization strategy applied. Available values: ILP | ILP-NC | GA | GA-NC | FF
• -Dmultiplicator: An integer multiplication factor for load fixture. 1 | 10 | 100

License

Apache License Version 2.0