question Re: 0 active threads (1 terminated) QueryDatabaseTable processor NiFi in Support Questions

0 active threads (1 terminated) QueryDatabaseTable processor NiFi

acoast83 — Wed, 20 Feb 2019 15:44:52 GMT

Hi for all !

Is anybody know why processor's thread info (up right corner) turn in red and have an info about - "0 active threads (1 terminated) "? The processor works fine but this red info makes me to warn about. How it is critical and how can I fix this?

Thanks!

Screenshot in an attach.

Re: 0 active threads (1 terminated) QueryDatabaseTable processor NiFi

acoast83 — Sun, 18 Aug 2019 00:00:51 GMT

picture attach

Re: 0 active threads (1 terminated) QueryDatabaseTable processor NiFi

turker_tunali — Wed, 20 Feb 2019 16:19:48 GMT

You may need to review logs for more information \logs\nifi-app.log and \logs\nifi-user.log. There is also a log level switch but I can't remember the location. Good luck.

Re: 0 active threads (1 terminated) QueryDatabaseTable processor NiFi

mburgess — Wed, 20 Feb 2019 22:51:21 GMT

AFAIK a thread can only be terminated like that manually, perhaps someone right-clicked on the processor and chose Terminate? A Terminated thread is really an "interrupted" thread, once it has been interrupted it should close gracefully but I don't believe there is any such guarantee. In any case, the processor should continue to run successfully even with terminated threads, although there may be an underlying issue with why someone terminated the thread to begin with (infinite timeout, e.g.)

Re: 0 active threads (1 terminated) QueryDatabaseTable processor NiFi

acoast83 — Fri, 07 Jun 2019 21:29:42 GMT

Thanks,Matt! Sorry for a late answer 🙂