We've got the Splunk App for Infrastructure inputs for Windows metrics deployed to our universal forwarders. Metrics are all working fine except in one situation; if any performance counter value is 0 then Splunk isn't recording the value.
For example, if a disk free space counter reaches 0, it'll drop off all charts. Likewise application pool request queues don't record a 0 value if there's nothing in them. I've got plenty of custom metrics I've done (faking statsd protocol) that can write 0 just fine, it seems to only be the perfmon metrics from SAI that have the issue. Has anyone else encountered this and know what the fix is?