Whos there doesn't appear to work in Splunk 6.0.3. Works fine in Splunk 6.1.0.
The bottom of the search.log files looks like this:
09-08-2015 13:50:47.576 INFO DispatchThread - Downloading all remote search.log files took 0.016 seconds
09-08-2015 13:50:47.577 INFO DispatchManager - DispatchManager::dispatchHasFinished(id='bentayeb1_bentayeb1whosthere_search2_1441745446.236642', username='bentayeb1')
09-08-2015 13:50:47.584 INFO UserManager - Unwound user context: bentayeb1 -> NULL
09-08-2015 13:50:47.606 INFO ShutdownHandler - Shutting down splunkd
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Begin"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_KVStore"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Thruput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_TcpInput1"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_TcpOutput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_UdpInput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_FifoInput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_WinEventLogInput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Scheduler"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Tailing"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_SyslogOutput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_HTTPOutput"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_TailingXP"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_BatchReader"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_PeerManager"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_ArchiveAndOneshot"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_AuditTrailManager"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_AuditTrailQueueServiceThread"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_FSChangeMonitor"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_FSChangeManagerProcessor"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_HttpClientPollingThread"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_AsyncQueuedMessageDispatcherThread"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_OfflineFlusher"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Slave"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_SlaveSearch"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Select"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_IdataDO_Collector"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_TcpOutput2"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Database1"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_TcpInput2"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_LoadLDAPUsers"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_MetricsManager"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Pipeline"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Queue"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_Exec"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_CallbackRunner"
09-08-2015 13:50:47.606 INFO ShutdownHandler - shutting down level "ShutdownLevel_HttpClient"
09-08-2015 13:50:47.606 INFO ShutdownHandler - Shutdown complete in 795 microseconds
The currently logged users section does not work on 6.2.1