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Impala Query Error

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Hello,

We are observing error on our Impala Query Status: InternalException: Error updating the catalog due to lock contention.
When we see from Impala >Queries it appeares to be showing as Executing but when we check in query details we see error in query status.
Session Type: HIVESERVER2
Impala Version: impalad version 2.12.0-cdh5.16.2
Query Type: DML
Query State: EXCEPTION

 

Any assistance is appreciated.

 

Regards

Amn.