Github user dlyle65535 commented on the issue:
https://github.com/apache/metron/pull/933
@mmiklavc - the special cut has a larger swap volume than the standard
image. It also is customized to what Metron required at the time to run. That's
pretty much it. If that's still desirable, I'd consider rebuilding the Packer
image with a more recent vintage Centos. Otherwise not so much.---
