Description of problem: Uploading openSCAP scan reports to satellite fails on 80% hosts when running on multiple hosts

Version-Release number of selected component (if applicable): Sat 6.10

How reproducible: Always

Steps to Reproduce:
1. Select 100 hosts on satellite and schedule openSCAP scan job
2. Monitor the job and see that most host fail

Actual results: While the scan runs fine, most hosts fail to upload result back to satellite with the error 'Upload failed: Net::ReadTimeout'.

Expected results: All hosts should be scanned and report uploaded back to satellite.

Additional info: Looking the resources used during scan, we feel this may be an issue of excess memory usage by ruby due to reports being unzipped on satellite (we tested this on a 43G machine).
foreman-debug: http://perf54.perf.lab.eng.bos.redhat.com/pub/foreman-debug-vdtsw.tar.xz