Investigate Memory Leaks on Long Duration Data Import

Overview:
When kicking off a data import job that takes hours to complete, mod-inventory seems to be using up all the memory and crashes. Investigate if there are memory leaks. See the attached graph.

Steps to Reproduce:
Import 500K MARC records using a profile that creates instances, holdings, and items from the Data Import page.
Observe that mod-inventory would crash during the import.

Expected Results:
Constant and stable memory usage.

Actual Results:
Memory rises throughout the test.

Additional Information:
PTF obtained heap dumps for before and after the imports. They can be provided when requested (can't attach the files here because of the huge size).

Interested parties:
bohdan-suprun abreaux magdaz OleksiiKuzminov