question nifi process one flow file at the time in Archives of Support Questions (Read Only)

nifi process one flow file at the time

simon_jespersen — Wed, 03 Jan 2018 22:15:48 GMT

I have a listDataBaseTables which gives be 256 flowfiles. In my flow there is a lot of processing going on and i need to process one at the time.

Is it possible to trigger a processor only to continue when the flowfile before reach a certain processor, otherwise is it possible

to get a processor to continue each flowfile on a period of time so there is a timespand between each flowfile.

I have tried with a process eait using routeOnAttribute but it don't work as i want it to do.

Best regards Simon

Shu_ashu — Sun, 18 Aug 2019 09:20:51 GMT

If you know the time for 1 flowfile processing then

Try with Control Rate processor with below properties

Rate Control Criteria

flowfile count

Maximum Rate

Time Duration

1 min

Based on above property values Control Rate processor will release 1 flowfile per 1 minute.

Change the Time Duration value based on your one flowfile processing time.

Configs:-

(or)

You need to use Wait and Notify processors to release flowfiles if the flowfile reaches certain processor.

Refer the below link about how to use wait and notify processors

simon_jespersen — Tue, 16 Jan 2018 23:41:07 GMT

Thank you this worked for me