Website link to paper Untangling Cluster Management Using Helix is broken

[brentwritescode]

Describe the bug

The link to the paper "Untangling Cluster Management Using Helix" from SOCC Oct 2012 on https://helix.apache.org/Publications.html is broken. It appears the entire SOCC 2012 site is no longer available (http://www.socc2012.org/home/program) and the paper has gone down with it.

Would it be possible to host a copy of the paper PDF directly on the helix.apache.org site itself? While the paper does exist other places like ACM (https://dl.acm.org/doi/abs/10.1145/2391229.2391248), I don't think it's freely downloadable anywhere any longer.

To Reproduce

1. Go to https://helix.apache.org/Publications.html
2. Click the "paper" link underneath "Untangling cluster management using Helix at SOCC Oct 2012"
3. Observe the "Site not found" error page

Expected behavior

The link should point to a downloadable copy of the paper