Hello all, I downloaded NIFI on a linux ec2 node. I set the JAVA_HOME and am trying to run as su. I am running the command ./nifi.sh run. I do not see any error messages on nifi-app.log or nifi-bootstrap.log but when I check status I keep getting "Apacha Nifi not running". Am I missing some basic check here? One more issue: nifi-user.log file stays at 0 KB (doesn't get updated). Thanks ... View more

Hello all, I am using Nifi and I am pulling JSON data from a kafka topic using ConsumeKafka processor. I need to compute an average of a particular attribute's value across multiple flowfiles in a given time window. Any ideas on how this can be done? I have tried using EvaluateJsonPath and UpdateAttribute to do this but it seems that UpdateAttribute only allows me to do mathematical operations on the current flowfile and I cannot access the previous flowfile using this processor. Is there a processor that can do this? Thanks. ... View more