github.com/cs3org/reva/v2@v2.27.7/changelog/1.5.0_2021-01-12/eos-user-cache.md (about)

     1  Enhancement: Add cache to store UID to UserID mapping in EOS
     2  
     3  Previously, we used to send an RPC to the user provider service for every lookup
     4  of user IDs from the UID stored in EOS. This PR adds an in-memory lock-protected
     5  cache to store this mapping.
     6  
     7  https://github.com/cs3org/reva/pull/1340