Pretty solid NiFi intro blog post >> https://www.freecodecamp.org/news/nifi-surf-on-your-dataflow-4f3343c50aa2/
NiFi (and other HDF/CDF components) SE training deck >> https://docs.google.com/presentation/d/1EuxZeintuYUzAQ83mfTJcAdFfPgP2DxoUl4lLvptueE/edit?usp=sharing (Cloudera-internal)
UpdateAttribute Processor
ETL-ish references
Removing columns, filtering rows, changing field values >> https://community.hortonworks.com/articles/66861/nifi-etl-removing-columns-filtering-rows-changing.html
UpdateRecord Processor
Blog about Wait/Notify processors >> http://ijokarumawak.github.io/nifi/2017/02/02/nifi-notify-batch/
Pausing a particular FlowFile a period of time before being processed again. Some options include:
Load-balancing a list of files with ListSFTP and FetchSFTP >> https://community.hortonworks.com/articles/97773/how-to-retrieve-files-from-a-sftp-server-using-nif.html
Scheduling & invoking a flow as a batch activity
Nifi & Kafka partitioning line up >> https://community.hortonworks.com/content/kbentry/57262/integrating-apache-nifi-and-apache-kafka.html
NiFi Expression Language Cheat Sheet >> https://www.nifi.rocks/documents/nifi-expression-language-cheat-sheet.pdf
Retry Loop Template >> https://community.cloudera.com/t5/Support-Questions/NiFi-Flowfile-retries/td-p/171724
RDBMS integration
Custom processor development >> https://community.hortonworks.com/content/kbentry/4318/build-custom-nifi-processor.html
Leveraging external scripts (STDOUT responses become a FlowFile to be leveraged in the rest of the flow definition)
"Repositories" Details and Configuration
HDF/NIFI Best practices for setting up a high performance NiFi installation >> https://community.hortonworks.com/articles/7882/hdfnifi-best-practices-for-setting-up-a-high-perfo.html
Thoughts on Yield Duration and Penalty Duration settings for processors >> https://medium.com/@ben2460/nifi-scheduling-a522a1c9e740
Controller Services scoping/availability >> https://community.hortonworks.com/articles/90259/understanding-controller-service-availability-in-a.html
SDLC with NiFi Registry
Example of using InvokeHTTP processor to read/write to Dropbox REST services; https://pierrevillard.com/2016/03/13/get-data-from-dropbox-using-apache-nifi/
Hosting REST services ON NiFi
Offloading (flowfiles from) a node >> https://community.cloudera.com/t5/Community-Articles/Offload-NiFi-Cluster-Nodes-using-the-UI-NiFi-1-8-0/ta-p/249070
Atlas Integration