Question #200716 on Graphite changed:
https://answers.launchpad.net/graphite/+question/200716
Status: Open => Answered
Michael Leinartas proposed the following answer:
No, unfortunately there's not though it would be possible to write a
function to do this. It'd look somewhat like currentAbove() - take a
wildcard list and filter out anything with no points.
There are a couple of things you might think about doing:
Use carbon-aggregator to create aggregated metrics - These metrics would
always reflect the running servers at any given time and would provide the
'clean' view.
Combined with above, regular purging of old metrics - in this case you'd have
detailed per-server metrics for your currently running cluster, and an
aggregated historical view for viewing long-term trends.
Instead of purging old files, move old files (keeping the subtree intact) to
an 'archive' directory. You can even gzip them to save on space (the webapp can
read gzip'd whisper files directly).
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