The fight was captured on video and shared on social media.
The fight broke out at about 8:30 p.m. and involved gang members, police said.
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The man was charged with misdemeanor reckless conduct. No injuries were reported.
Festival organizers said they are committed to keeping the event safe.
The four-day festival wrapped up Sunday night.
An official attendance count was not immediately available, but organizers expect this year's event to set a new attendance record.