ORA-08176: consistent read failure; rollback data not available

Concurrent log file detail. 

--SQLException

java.sql.SQLException: ORA-08176: consistent read failure; rollback data not available

	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:439)

===========================================================

ERROR: ORA-8176 "consistent read failure; rollback data not available" Reference Note (Doc ID 20758.1)

Error:  ORA-08176 consistent read failure; rollback data not available 
---------------------------------------------------------------------------

Cause:  Encountered data changed by an operation that does not generate 
	rollback data : create index, direct load or discrete transaction. 

Action: In read/write transactions, retry the intended operation. Read only 
	transactions must be restarted.