Purge data from repair_history table?

[Gábor Auth]

Hi,

I've discovered a relative huge size of data in the system_distributed
keyspace's repair_history table:
               Table: repair_history
               Space used (live): 389409804
               Space used (total): 389409804

What is the purpose of this data? There is any safe method to purge? :)

Bye,
Gábor Auth