MongoDB shows a warning if /proc/sys/vm/overcommit_memory is set to 2, recommending to configure it to 0 or 1. See this link.
In our production notes we don't mention that parameter and why we recommend that. I think we should document it to avoid customers from misconfiguring it. Once this is documented, we can reference it in our support tools.
Modify production notes (possibly the MongoDB on Linux section ) to note the recommendation for this option.