This page lists the various limits that Humio has.

General limits

Description Limit Notes
Max number of fields in an event 1000
Max event size 1M bytes
Max length of query 66k characters
Max number of elements in a groupby 20k Can be disabled using the ALLOW_UNLIMITED_STATESIZE configuration
Max number of events in a tail 10k -
Max number of datasources in a repository 10k Can be changed using the MAX_DATASOURCES configuration specific limits

Description Limit Notes
Max body size in POST requests 32M bytes this will mainly be hit when ingesting large bulks of events.