FAQ.md

Frequently asked questions

• Frequently asked questions
  • Build
    • How do I add a dependency to my module ?
    • How do I make my module depend on library XXX from AliceO2 ?
  • CCDB repository
    • How to see which objects are stored in the CCDB ?
    • How to delete objects from the CCDB ?

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Build

How do I add a dependency to my module ?

We use standard CMake and you should get acquainted with this tool. In the CMakeLists.txt of your module, add the missing dependency to the command target_link_libraries (i.e. the name of the library without "lib" and ".so". For AliceO2 libraries see the next question.

How do I make my module depend on library XXX from AliceO2 ?

Add the library name to the list O2_LIBRARIES_NAMES in FindAliceO2.cmake

CCDB repository

How to see which objects are stored in the CCDB ?

The easiest is to use the QCG (QC GUI). If you use the central test CCDB, you can use the central test QCG. Simply direct your browser to https://qcg-test.cern.ch.

If for some reason you don't want or can't use the QCG, the CCDB provides a web interface accessible at http://ccdb-test.cern.ch:8080/browse/.

How to delete objects from the CCDB ?

By accessing http://ccdb-test.cern.ch:8080/truncate/path/to/folder you will delete all the objects at the given path. Careful with that please ! Don't delete data of others.
In production it will of course not be possible to do so.

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