Agent.hostname unique search


I'm forwarding event logs for 75 servers to elasticsearch. I would like to be able to run a query that lets me check the past 24 hours for all the UNIQUE entries in the agent.hostnames field. It should come back with...75 names!

is a there way to do this!?


using aggregations is the way to go here. One way would be to use the cardinality aggregation (make sure to read the docs about this one being probabilistic) or use an terms aggregation if you interested in concrete values.


Thank you for replying Alex. I will read the docs.

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