Marco Gaido created NIFI-3271:
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Summary: GenerateFlowFile processor creates duplicates with CRON
scheduling strategy and Primary node only execution
Key: NIFI-3271
URL: https://issues.apache.org/jira/browse/NIFI-3271
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.1.0
Reporter: Marco Gaido
Priority: Critical
The most strange thing about this issue is that it came out only today (we have
been running our flow for two weeks), while until yesterday everything worked
as expected without any change.
We have some GenerateFlowFile processors scheduled on a CRON basis, with
"Primary node only" as execution. Until yesterday, all FlowFiles were generated
accordingly without any issue. Today, instead, they started creating two
different flow files. For instance, a processor which should have generated a
FlowFile at 8:05:00 am indeed generated a FlowFile at 08:04:59 am and one at
8:05:00 am. Both the FlowFiles have been generated by the Primary node which is
the coordinator too.
The load of the system is quite low, and the heap space utilization is quite
low too.
In the Hortonworks community, I found out another guy experiencing the same
issue on NiFi 1.0.0:
https://community.hortonworks.com/questions/69734/nifi-100-generateflowfile-processor-creates-duplic.html.
I can't understand what is happening and which may be the reason of this weird
behavior. Do you have any idea?
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