What tends to happen with these infrequent flows is that not only are they infrequent but they also tend to change from one run to the next. Thus the first time there might be a string of processes but the next time (based on lessons learned from the first time) the run is modified, or a new branch is added in the middle. Thus in a sense the flows are in a continual state of modification/development.
The way this would be used is that the processors in a flow would be configured to run once. Then on a particular run the user shift-clicks to select the portions of the flow which should run. Then with multiple components selected they click on the Start in the Operate palette. As each processor finishes its visual state goes back to stopped so that at the end of the run all the processors are stopped and ready for the next “ad-hoc” run. Naz Irizarry MITRE Corp. 617-893-0074 > On Jan 12, 2017, at 1:02 PM, Joe Witt <joe.w...@gmail.com> wrote: > > Naz, > > Why not just leave all the processes running? If the data only > arrives periodically that is ok, right? > > Thanks > Joe > > On Thu, Jan 12, 2017 at 10:54 AM, Irizarry Jr., Nazario <n...@mitre.org> > wrote: >> On a project that I am on we have been looking at using NiFi for >> orchestrations that are invoked infrequently. For example, once a month a >> new data input product becomes available and then one wants to run it >> through a set of processing steps that can be nicely implemented using NiFi >> processors. However, using the interval or cron scheduling for this purpose >> begins to get cumbersome after a while with the need to start and manually >> stop these occasional flows. >> >> It would be fairly easy to add an additional scheduling option - “Run Once” >> for this use case. The behavior would be that when a processor is set to >> run once it automatically stops after it has successfully processed one >> input. >> >> What do people think? We are willing to implement this small enhancement. >> >> Cheers, >> >> Naz Irizarry >> MITRE Corp. >> 617-893-0074 >> >> >> >
