Salient features of Nifi
- Instantaneous Visual Results:- The great flexibility of Nifi is in transit visual result. After every processor you add, after each logic you apply, you have an opportunity to get the visual result of it. The best thing about nifi is, it also briefs about the error you encounter. And so, it makes you feel confident at each and every step while building your data flow program.
- Easy Control and tracking:- During the normal development cycle, for any change in the program, the programmer has to deploy it which is a frustrating task for a small change. But with nifi, changes can easily be made on the fly. We can add a new processor in the data flow program or we can change the existing processor by changing configuration without worrying to deploy it again.
- Data Provenance:- Nifi is a good debugger. If we want to keep track of data from where it came from, what we did to it and where we send the data, data provenance has it all. All you need to do is right click on processor to gain access to it’s data provenance.
- Data Prioritization:- We sometimes might have data sets which need to be processed first. So, there is a list of prioritizers nifi offers. All we need to do is, select the prioritizer we want to, for that connection, from the drop down menu of the processor’s configuration.
- Backpressure:- Backpressure is something we adopt, when downstream processors are not keeping up with the upstream processor’s flow of data. We can limit the flow of data by applying limit on how many flow files we need to process further or the maximum limit of the data which should be allowed to flow further.
- Extensibiliity:-NIfi is indeed a robust tool to play with. Even though nifi provides diversified processors, there are sometimes going to have requirements which don't meet along with the existing processors. So, to serve the need, all you have to do is create your own custom processor by simply writing down your java code in the maven environment using nifi dependencies and create a nifi archive(NAR file) for the same. Voila!! You are done.
- Security:- In an organization where you need to share your work with a group of people, you can therefore authorize what people can have what kind of privilege to work up on your flow. You can grant them different type of varying level of access-features, as provided by nifi.
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