When you federate large quantities of documents, export throughput is lower than expected and many errors appear in the exporter log.
ERROR - Unable to retrieve batch id='E8B1739C-FF4B-8B4B-9150-82BB21B54FA5' com.filenet.cfs.iice.federator.exception.DataAccessException: com.microsoft.sqlserver.jdbc.SQLServerException: Transaction (Process ID 59) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Transaction (Process ID 59) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.