NIFI EnforceOrder

[#1]

Hello 
I am using the EnforceOrder in order to sort the flow files. This procesosr is maintaning state and i want to clear in it some regular interval for e.g. 4 min. I am runnig NIFI over a cluster. I am clearing the state through Inactive Timeout propery by setting it 4 min. I can see some time state is clear and most of the time not. Please help for a resolution for how clear state consistently.