Jens, If you encounter an issue where a processor seems ’stuck’ the best course of action is generally to grab a thread dump (bin/nifi.sh dump thread-dump1.txt) and attach that. It will show exactly what the processor is doing at that time and help to understand why where it’s getting stuck.
Thanks -Mark On Oct 13, 2020, at 6:46 AM, Jens M. Kofoed <jmkofoed....@gmail.com<mailto:jmkofoed....@gmail.com>> wrote: Hi community I have some issues with the InvokeHTTP process. Sometimes the process does not receive a response from the web server and the process hangs in a waiting state without timing out. I use nifi version 1.12.1, and the settings for the InvokeHTTP process is as follow: Penalty duration 30 secs Yield duration 1 sec Scheduling strategy: Timer driven concurrent Taskts: 1 Run schedule: 1 sec Run duration: 0ms HTTP metode: GET Connection timeout: 5 secs Read timeout: 30 secs Idle timeout: 2 mins. Max Idle connections 1 Looking in the nifi-app.log file for debug messages I can see many requests followed by a response from the web server. When the UI no longer showed any files going through I tried to stop the process and looked in the log file. In the logfile I can see the request to the web server, but no response. I am expecting a read timeout but nothing happens. When trying to stop the process in the UI, the process goes from 1 task to 2 tasks and after 10 min. the process has still not stopped. So I have to Terminate it. Can anyone please help? I have tried to create a bug report, but it is difficult when there are no error messages. https://issues.apache.org/jira/browse/NIFI-7899 Kind regards Jens M. Kofoed
