Purge old series data including host tag itself?

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I am trying to remove old hostnames from a database as those servers are no longer sending data to that database. There is no data there, but I’d like to not see the labels there anymore. How can I go about this?

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We’re still working on a solution to this. You can check out the GitHub issue and contribute your thoughts if you’d like.

For now, the best way to do this is to run the following command on the Influxdb host.

drop series where host='OldHost01'

This will delete all the data held for that host on the database, so make sure you don’t need anything on that host.