qcrepocleaner 1.0

Set of tools to clean up the QCDB repository.

Here are the tools to clean up the CCDB of the QC.

Entry point

It is o2-qc-repo-cleaner. See the long comment at the beginning.

Usage

usage: o2-qc-repo-cleaner [-h] [--config CONFIG] [--config-git] [--config-consul CONFIG_CONSUL] [--log-level LOG_LEVEL] 
                          [--dry-run] [--only-path ONLY_PATH] [--workers WORKERS]

Configuration

The file config.yaml contains the CCDB URL and the rules to be followed to clean up the database. An example is provided along this README (config.yaml). A typical rule in the config file looks like:

  - object_path: qc/ITS/.*
    delay: 240
    policy: 1_per_hour

There can be any number of these rules. The order is important as we use the first matching rule for each element in the QCDB.

• object_path: a pattern to be matched to know if the rule applies
• delay: the duration in minutes of the grace period during which an object is not removed, even if it matches the above path.
• policy: the name of a policy to apply on the matching objects. Here are the currently available policies (full description in the corresponding files):
  • 1_per_hour: keep the first and extend its validity to 1 hour, remove everything in the next hour, repeat.
  • 1_per_run: requires the "Run" or "RunNumber" metadata to be set. Keep only the most recent version of an object for a given run.
  • last_only: keep only the last version, remove everything else.
  • none_kept: keep none, remove everything
  • skip: keep everything
• from_timestamp: the rule only applies to versions whose valid_from is older than this timestamp
• to_timestamp: the rule only applies to versions whose valid_from is younger than this timestamp
• xyz: any extra argument necessary for a given policy. This is the case of the argument delete_when_no_run required by the policy 1_per_run.

The configuration for ccdb-test is described here.

Unit Tests

cd QualityControl/Framework/script/RepoCleaner ; python3 -m unittest discover

In particular there is a test for the production rule that is pretty extensive. It hits the ccdb though and it needs the following path to be truncated: qc/TST/MO/repo/test*

Other tests

Most of the classes and Rules have a main to help test them. To run do e.g. python3 1_per_run.py.

Installation

CMake will install the python scripts in bin and the config file in etc.

Example

PYTHONPATH=./rules:$PYTHONPATH ./o2-qc-repo-cleaner --dry-run --config config-test.yaml --dry-run --only-path qc/DAQ --log-level 10

Development

To install locally

cd Framework/script/RepoCleaner
python3 -m pip install .