Dataloader is a ROCS (Reltio Open Collaboration System) utility used by customers to load entities and relations into Reltio Cloud tenant. This utility fails to load objects when the tenant environment has a huge number of messages in the internal queue to process. Why?
Main events queue size = xxxxxxxxx,
Matching queue size = xxxxxxxx
This is a known issue resolved in recent versions (release 2.5.7 and higher). From version 2.5.7 onward, Dataloader checks the status of the queue rather than the number of messages.