https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105632#M15800 <P>I stopped a running process in NiFi 0.4.1 to make a configuration change, but I am unable to make an edit or re-start the process. It seem stuck waiting for a thread to finish. How do I debug this situation? I've looked at <EM>nifi-app.log</EM>, searched for that process name, but did not see anything of value. I ran <EM>ps -eLf</EM> hoping to see a thread with Solr in the name, but I didn't find that either. Here is a picture showing the lack of a "start" or "edit configuration" options. </P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1450-screen-shot-2016-01-20-at-24820-pm.png" style="width: 998px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/23570iE06D9244FC251DA3/image-size/medium?v=v2&amp;px=400" role="button" title="1450-screen-shot-2016-01-20-at-24820-pm.png" alt="1450-screen-shot-2016-01-20-at-24820-pm.png" /></span></P><P>What else can I do to troubleshoot this problem before restarting the <EM>nifi</EM> process on this machine?</P> Mon, 19 Aug 2019 11:58:14 GMT vzlatkin 2019-08-19T11:58:14Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105632#M15800 <P>I stopped a running process in NiFi 0.4.1 to make a configuration change, but I am unable to make an edit or re-start the process. It seem stuck waiting for a thread to finish. How do I debug this situation? I've looked at <EM>nifi-app.log</EM>, searched for that process name, but did not see anything of value. I ran <EM>ps -eLf</EM> hoping to see a thread with Solr in the name, but I didn't find that either. Here is a picture showing the lack of a "start" or "edit configuration" options. </P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1450-screen-shot-2016-01-20-at-24820-pm.png" style="width: 998px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/23570iE06D9244FC251DA3/image-size/medium?v=v2&amp;px=400" role="button" title="1450-screen-shot-2016-01-20-at-24820-pm.png" alt="1450-screen-shot-2016-01-20-at-24820-pm.png" /></span></P><P>What else can I do to troubleshoot this problem before restarting the <EM>nifi</EM> process on this machine?</P> Mon, 19 Aug 2019 11:58:14 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105632#M15800 vzlatkin 2019-08-19T11:58:14Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105633#M15801 <P>Vlad, at this point please go into NiFi's bin directory and execute <STRONG>nifi.sh dump</STRONG> command. Send those logs through.</P> Thu, 21 Jan 2016 04:02:16 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105633#M15801 andrewg 2016-01-21T04:02:16Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105634#M15802 <P>Thanks for reporting it and for providing the stack traces. Very helpful. I've filed an Apache NiFi JIRA for it <A target="_blank" href="https://issues.apache.org/jira/browse/NIFI-1417">https://issues.apache.org/jira/browse/NIFI-1417</A></P> Thu, 21 Jan 2016 13:08:11 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Unable-to-start-or-stop-a-process-in-NiFi/m-p/105634#M15802 JoeWitt 2016-01-21T13:08:11Z