question: private void resetRelay ( TungstenProperties serviceProps , Map < String , String > progress ) { String relayLogDirName = serviceProps . getString ( "replicator.extractor.dbms.relayLogDir" ) ; if ( relayLogDirName != null ) { File relayLogDir = new File ( relayLogDirName ) ; if ( ! removeDirectory ( relayLogDir , progress ) ) { logger . error ( String . format ( "Could not remove the relay log directory %s" , relayLogDirName ) ) ; } } }
target:  Resets relay log information if it exists.