Nifi service going down every day

Question

I have install open source hadoop cluster and with Nifi. when i check status of sevice every day morning : status as below.

INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi is running at PID 23164

but is not responding to ping requests

After restarting service : status as below: it will work fine for the day.

INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi is currently running, listening to Bootstrap on port YYYY, PID=XXXX

ERROR [Timer-Driven Process Thread-101] o.a.n.p.standard.ExecuteStreamCommand ExecuteStreamCommand[id=df74862b-9744-319b-a478-34a0a4aee5b4] Failed to process session due to org.apache.nifi.processor.exception.ProcessException: java.io.IOException: Cannot run program "/data/nifi/TriggerNifi/Scriptfile": error=13, Permission denied: org.apache.nifi.processor.exception.ProcessException: java.io.IOException: Cannot run program "/data/nifi/TriggerNifi/Scriptfile": error=13, Permission denied
org.apache.nifi.processor.exception.ProcessException: java.io.IOException: Cannot run program "/data/nifi/TriggerNifi/ScriptFile": error=13, Permission denied
        at org.apache.nifi.processors.standard.ExecuteStreamCommand.onTrigger(ExecuteStreamCommand.java:367)
        at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
        at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1165)
        at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:203)
        at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Cannot run program "/data/nifi/TriggerNifi/scriptfile": error=13, Permission denied
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
        at org.apache.nifi.processors.standard.ExecuteStreamCommand.onTrigger(ExecuteStreamCommand.java:364)
        ... 11 common frames omitted
Caused by: java.io.IOException: error=13, Permission denied

Answer 1

Could the issue be related to the ExecuteStreamCommand executing against the /data/nifi/TriggerNifi/scriptfile, which it lacks permissions to run. If you ran a chmod 777 data/nifi/TriggerNifi/scriptfile and tried again, would the NiFi processor work?