ORA-39095: Dump file space has been exhausted: Unable to allocate 8192 bytes

This error can be seen during import export of database in Oracle server. Error can be throw because of wrong command fired on prompt. I my case i have been using fixed dump file name with parallel processing.
In order to take database backup we need to use different syntax so that we will not face this error in future. I have writing my observation below, how i resolved this error. Please provide your valuable comments if it works.

I offered a command to take database backup in oracle and ended up with error after a few minutes

expdp scott/tiger dumpfile=scott.dmp directory=DATA_PUMP_DIR parallel=4 status=1

Worker 4 Status:
  Process Name: DW03
  State: EXECUTING
  Object Schema: scott
  Object Name: emp
  Object Type: SCHEMA_EXPORT/TABLE/TABLE_DATA
  Completed Objects: 1
  Total Objects: 1014
  Worker Parallelism: 3
ORA-39095: Dump file space has been exhausted: Unable to allocate 8192 bytes


SOLUTION
Use %U in dumpfile creation, expdp will automatically take care of number of file need to created as per size of database size

expdp scott/tiger dumpfile=scott_%U.dmp directory=DATA_PUMP_DIR parallel=4