[jira] [Created] (MINIFICPP-1076) onTrigger always runs after a yield, regardless of the run schedule

["Andre Araujo (Jira)" <ji...@apache.org>]

Andre Araujo created MINIFICPP-1076:
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             Summary: onTrigger always runs after a yield, regardless of the run schedule
                 Key: MINIFICPP-1076
                 URL: https://issues.apache.org/jira/browse/MINIFICPP-1076
             Project: Apache NiFi MiNiFi C++
          Issue Type: Bug
    Affects Versions: 0.6.0
            Reporter: Andre Araujo


I'm running some tests with Minifi (C++) and noticed something strange that doesn't seem right to me.

I created a test processor that generates a single flow file every time {{onTrigger}} is executed (pretty much like {{GenerateFlowFile}}). I ran this processor on NiFi and, as I expected, I got 1 flow file at every {{Run Schedule}} period.

I tested calling {{context.yield()}} within {{onTrigger}} and noticed that it makes no difference; {{onTrigger}} is always called once per scheduling period.

I wrote the same test processor for Minifi C++ and the result was different. If I *don't* call {{context->yield()}} in {{onTrigger}}, the behavior is the same as in NiFi. However, if I call {{context->yield()}} in {{onTrigger}}, {{onTrigger}} will be invoked again at the end of the yielding period, regardless of the run schedule.

If, for example, *Run Schedule = 60 secs* and *Yield Duration = 1 sec*, I'll get 60 flow files per minute.



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