Hi, Thanks Andy/Lee, will take a look.
— Mike From: Lee Laim <lee.l...@gmail.com<mailto:lee.l...@gmail.com>> Reply-To: "users@nifi.apache.org<mailto:users@nifi.apache.org>" <users@nifi.apache.org<mailto:users@nifi.apache.org>> Date: Thursday, March 16, 2017 at 10:01 AM To: "users@nifi.apache.org<mailto:users@nifi.apache.org>" <users@nifi.apache.org<mailto:users@nifi.apache.org>> Subject: [External] Re: Having a processor wait for all inputs Hi Michael, NiFi offers several ways of accomplishing this. One way is to use the merge content processor with a correlation attribute that each of the 3 inputs share. By setting max and minimum flowfiles to 3, the processor will wait for exactly 3 inputs with a given attribute before combining them and releasing them to the next processor. This is assuming that each of the 3 inputs for a given task will only show up once. I'm sure others will chime in with different methods but this will get some gears turning. Have fun! Lee On Mar 15, 2017, at 7:38 PM, Michael John LEWIS <michaelle...@dbs.com<mailto:michaelle...@dbs.com>> wrote: Hi, I’ve just started taking a look at Nifi as it seems perfect for a project I’m working on right now. The one thing I’m trying to solve is this – I have a process (say a batch job or similar) that I want to invoke, only once all the inputs have arrived ( a simple dependency graph ). i.e. I have 3 files and I don’t want to run a process after each file arrival, but once all 3 files have arrived. Is this easily achievable in Nifi ? Or would I have to think about custom processor? Thanks in advance, Mike CONFIDENTIAL NOTE: The information contained in this email is intended only for the use of the individual or entity named above and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete the mail. Thank you. CONFIDENTIAL NOTE: The information contained in this email is intended only for the use of the individual or entity named above and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete the mail. Thank you.