logging for linking process

[ericbuckley]

Summary

Add additional logging statements to the recordlinker.linking.link module to capture key data points of the process. Ideally we should capture enough information to understand why a match, no match or possible match happened.

Acceptance Criteria

• Add new logging info/debug calls to link.py

Details / Tasks

• At the pass level
  • Capture information on the blocking call
  • Capture information on the calculated belongingness ratio for each cluster evaluated
  • Possibly, capture information on the comparison results (might be too noisy)?
• Capture information on the linkage results

Background / Context

Logging context will be important here. The extra kwarg to the logging methods can be used to pass a dict of information about the context of the event. Using this will make it much easier to analyze the records when using a log analysis tool like Splunk.

Dependencies

#91