Check if Data Pump Job is Hung 
--
-- Check to see if a data Pump Job is Hung
--
 
SET PAUSE ON
SET PAUSE 'Press Return to Continue'
SET PAGESIZE 60
SET LINESIZE 300
 
SELECT 
  v.status, 
  v.SID,
  v.serial#,
  io.block_changes,
  event, module,
  v.sql_id 
FROM 
  v$sess_io io,
  v$session v 
WHERE 
  io.SID=v.SID 
AND 
  v.saddr IN (SELECT saddr FROM dba_datapump_sessions) 
ORDER BY 
  io.BLOCK_CHANGES
/

Notes
If Block changes are going up, then the Data Pump Job is Not Hung
If the Data Pump Job is Suspended, then an Event will be returned detailing this.

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