gistfile1.txt

Assume a two-level hiera config (common and nodename).

I have this in common.yaml:

sysctl:
    hugepages:
        buffer: 4194304
        pagesize: 2048

I want to override buffer for a specific node foo, so I have this in foo.yaml:

sysctl:
    hugepages:
        buffer: 8388608

I use this in a puppet manifest:

$sysctl = hiera_hash('sysctl')

But, I find that on node foo, the pagesize value is not found.

I can see why that is (hiera_hash) is only merging the top-level hash, ie. sysctl. It does not also merge the hugepages hash contained within the sysctl hash.