https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Cannot-map-Input-port-to-processor-ExecuteProcess/m-p/156139#M49033 <P>ExecuteProcess doesn't take input. It is a source of data (e.g. from that process).</P><P>What you're looking for is ExecuteStreamCommand, which allows for passing in a flowfile and evaluate attributes dynamically: <A target="_blank" href="https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.ExecuteStreamCommand/index.html">https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.ExecuteStreamCommand/index.html</A></P> Fri, 16 Dec 2016 02:52:35 GMT andrewg 2016-12-16T02:52:35Z https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Cannot-map-Input-port-to-processor-ExecuteProcess/m-p/156138#M49032 <P>I have a process group and from the input port, I just could not link to the ExecuteProcess processor. Can you please advise on any specific reason for that?</P> Fri, 16 Dec 2016 02:50:06 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Cannot-map-Input-port-to-processor-ExecuteProcess/m-p/156138#M49032 ashsskum 2016-12-16T02:50:06Z https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Cannot-map-Input-port-to-processor-ExecuteProcess/m-p/156139#M49033 <P>ExecuteProcess doesn't take input. It is a source of data (e.g. from that process).</P><P>What you're looking for is ExecuteStreamCommand, which allows for passing in a flowfile and evaluate attributes dynamically: <A target="_blank" href="https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.ExecuteStreamCommand/index.html">https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.ExecuteStreamCommand/index.html</A></P> Fri, 16 Dec 2016 02:52:35 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Cannot-map-Input-port-to-processor-ExecuteProcess/m-p/156139#M49033 andrewg 2016-12-16T02:52:35Z