Nifi use cases

Nifi use cases. Dataflow Automation: NiFi excels at automating dataflows, providing a visual interface to design complex data routing, transformation, and system mediation logic. A list of commonly used Processors for this purpose can be found above in the Attribute Extraction section. These range from event-driven object store processing and microservices that power serverless web applications, to Internet of Things (IoT) data processing, asynchronous API gateway request processing, batch file processing, and job automation with cron Use Cases. NiFi automates cybersecurity, observability, event streams, and generative AI data pipelines and distribution for thousands of companies worldwide across every industry. Store the various NiFi repositories on data disks and not on the OS disk for three main Oct 31, 2023 · Real-World Use Cases To illustrate the practical application of Apache NiFi in streamlining data lake ETL, let's explore a couple of real-world use cases. Add Data Sources: - Inside your process group, you’ll add Description: Joins together Records from two different FlowFiles where one FlowFile, the 'original' contains arbitrary records and the second FlowFile, the 'enrichment' contains additional data that should be used to enrich the first. May 3, 2019 · Those standard processors handle the vast majority of use cases you may encounter. All the docs. Jun 14, 2016 · 9. Data flow is a recurrent use case faced by many companies and institutions. We first look at the simplest ways to read data from a Oct 7, 2020 · CONCLUSION. NiFi supports compression which can decrease the size of files being transferred across the network. This powerful software will give your business an edge over the others. However, there are cases where this is undesirable. Apache Nifi provides an easy-to-use interface for designing and managing data flows, making Oct 28, 2019 · I was wondering if the following IoT problem/use case would be an intended fit for using Apache NiFi: I use NB-IoT/LTE-M as connectivity means for sending messages to an IoT cloud platform (e. Custom Processors - Latest custom processors Nar file if exists is Apache NiFi is an easy to use, powerful, and reliable system to process and distribute data. Building a Pipeline to create a controller service for data base connection and write data to MySQL DB. instead of the build + apply. datacumulus. Prerequisites : No NiFi knowledge required to start this course. Below is the flow diagram regarding that. Apr 25, 2024 · Here we’ll discuss the advantages of incorporating Python into NiFi workflows and explore practical use cases where Python processors can streamline data processing tasks, enhance flexibility and accelerate development. I am looking for some flow or processor, where I can give or use 2 different csv as input and convert into avro as per schema provided? Nov 1, 2023 · 4. Consider again the above scenario. The first thing you need to do is to define the NiFi cluster you want to deploy ! To do this you will need to define a NiFiCluster resource in kubernetes, you . Tech: MiNiFi Java Agent, Java, Apache NiFi 1. We can now use the CDP CLI to create and configure the Prometheus reporting task. 20, Apache Kafka, Apache Flink, Cloudera SQL Stream Builder, Cloudera Streams Messaging Manager, Cloudera Edg e Flow Apr 9, 2020 · In this article, we define a common use case and demonstrate how NiFi achieves both high scalability and performance for a real-world data processing scenario. Documentation. If you want to get incremental changes, you could use the QueryDatabaseTable processor and use it's Maximum Nov 22, 2023 · Most of the use cases in which we see a need for Python-based extension points (based on previous use of scripting Processors such as ExecuteScript) tend to be around data manipulation and/or complex evaluation of data. For critical use cases, most customers will have a dedicated NiFi cluster to ensure SLAs are met. Apache NiFi could be the right answer for this case but can come down to the details. This is particularly powerful whenever the use case is event driven and there is no need for NiFi instances to always be up and running. Dec 28, 2019 · Basically what a Funnel does, is to just transfer FlowFiles forward as it gets them. May 26, 2023. NiFi Exporter. So to plan out what we are going to do, I have a high level architecture diagram. Nov 29, 2018 · Apache NiFi and Apache Kafka are two different tools with different use-cases that may slightly overlap. NiFi makes this possible by encapsulating each of these processes in its own Process Group. Make sure that you are running at least version 0. It always starts with a dollar sign and an opening curly brace (“$ {“) and ends with a closing curly brace (“}”). Data ingestion: NiFi is well-suited for ingesting data from various sources, like IoT devices, social media, or log files, and routing it to appropriate destinations. Dec 19, 2022 · Use Cases. Sep 22, 2016 · Drag the processor icon from the NiFi menu bar to the data flow canvas. The start is based on a trigger event like a file landing in object store, the start of a cron event, or a gateway endpoint being invoked. $ {absolute. File to Fetch. Note that you can already use the latest 1. While NiFi employs dataflow through principles and design closely related to flow based programming (FBP) as a means May 3, 2024 · NiFi provides several different Processors out of the box for extracting Attributes from FlowFiles. 0. Oct 25, 2023 · The primary use case is to collect data from different source systems. Nov 16, 2021 · NiFi as a Function in DataFlow Service provides an efficient, cost optimized, scalable way to run NiFi flows in a completely serverless fashion. 8. NiFi can split large files in to smaller files which can be reassembled back in to the original larger files by a NiFi on the other side of the transfer. It is highly configurable along several dimensions of Jan 18, 2021 · Managing your data flows with Apache Nifi. On a high level, we are going to use Apache NiFi to collect, transform and ingest data provided by the kafka-log-dirs tool. This can quickly lead to OutOfMemoryErrors and/or For most use cases, this is desirable. This is optional. IoT Data Management: NiFi excels in handling the flow of data from Internet of Things (IoT) devices, ensuring efficient and secure data movement. AWS IoT Core, Azure IoT Hub or others). If these steps get messed up, fall behind, then a file might be ingested and processed twice or lost. Dec 15, 2022 · Customers also have a class of use cases that do not require always-running NiFi flows. Here are the use cases for NiFi: If you want to transfer data from one software to another eliminating all the possible threats, NiFi is an apt solution for you. With the upcoming new release of NiFi 2. system to process and distribute data. The first implementation of the Registry supports versioned flows. 0; Kudu 1. In that article, I explored NiFi’s efficiency and scalability as Jul 3, 2023 · Use Cases of Apache NiFi. For guidance that's specific to NiFi, see Configuration Best Practices in the Apache NiFi System Administrator's Guide. However, Apache Camel requires more coding expertise, and the learning curve can be steeper. Oct 7, 2020 · These are the kind of features that set NiFi apart and allow new data-centric use cases that need to maintain a standard of performance, availability, and security. Regardless of previous experience, material in this course will be useful for you. Jul 3, 2023 · In this article, we will provide a comprehensive comparison of Apache Airflow and Apache NiFi, discussing their key features, similarities, differences, and use cases to help you determine which Feb 9, 2016 · NiFi can split large files in to smaller files which can be reassembled back in to the original larger files by a NiFi on the other side of the transfer. The command we’re going to use is the cdp dfworkload create-reporting-task command May 3, 2024 · In this case, we reference the filename attribute and then manipulate this value by using the toUpper function. Rather than creating a process group for these, funnel would come handy. It's less of a "self documenting" process, but works very nicely. keywords: An array of keywords that can be associated with the Apache Nifi Example First Use Getting Started With the robust data flow management capabilities offered by Apache NiFi, I have created a sample application and will guide you on harnessing the potential of this remarkable platform in the article below. 2). So, for simplifying all the use-cases I am using evaluate JSONpath processor for fetching all attributes using jsonpath and apply expression language function on that in extract processor. 101 by running cdp –version. Type replace in the filter box to filter the list of processors. Use Cases of NiFi. Nifi Hands-On implementation of all the use cases. The rest of this is under that assumption. 2. Once the job completes, the associated compute resources need to shut down. This feature allows us to program our dataflow while dynamically changing the behavior towards the FlowFile, according to the FlowFile we transfer. Monitoring and Alerting: NiFi offers extensive monitoring and alerting capabilities, allowing users to track the performance, health, and status of data flows in real-time. NiFi is " An easy to use, powerful, and reliable system to process and distribute data. ·. Jan 20, 2022 · Ease of use. To answer when should one use Apache NiFi as opposed to Kafka, we will unravel the functions and limitations of both! Mar 8, 2018 · This Book will contain 14 chapters, to cover NiFi concepts and providing 9+ use cases, so that you can understand the various fine grain detail about Apache NiFi. But that will not be in the format defined in schema. Those split files could be sent via multiple concurrent threads. It can Mar 27, 2023 · For the vast majority of use cases, this should be set to “Line-by-Line. Multi step data transformation and Dec 19, 2022 · Use Cases. 8), you can also do directly oc apply -k . Dec 12, 2022 · 1. Mar 15, 2021 · Although Apache NiFi Vs Kafka overlaps each other in terms of usability, NiFi might carry an edge over Kafka. With Apache Kafka 2. May 3, 2024 · A common use case in NiFi is to perform some batch-oriented process and only after that process completes, perform another process on that same batch of data. Before diving into numbers and statistics, it is important to understand the use case. The content of the course will show prominent use cases for NiFi and how its capability is fully utilized. In my simple example I consume the Kafka messages in MiniFi and write to a file. nar. Supports Expression Language: true (will be evaluated using flow file attributes and Environment variables) Completion Strategy. com/apache- May 13, 2019 · You can use NiFi to do an import as well, using processors such as ExecuteSQL, QueryDatabaseTable, GenerateTableFetch They all work with JDBC connectors, so depending on if your database supports this, you could opt for this as well. It works for a large amount of data. Both tools offer user-friendly interfaces and come with a web-based graphical user interface. This Book will contain 14 chapters, to cover NiFi concepts and providing 9+ use cases, so that you can understand the various fine grain detail about Apache NiFi. One such case is when using NiFi to consume Change Data Capture (CDC) data from Kafka. NiFi is ideal for real-time data ingestion, processing, and distribution scenarios. An ideal use case is one that is realistic yet simple enough that it can be explained Jul 11, 2023 · Apache Nifi is an open-source data integration platform that is designed to automate the flow of data between different systems. Download View Documentation. It was initially developed by the US National Security Agency (NSA) and was later released as an open-source project in 2014. Configure ReplaceText Processor. Next is an open parenthesis ((), followed by the function arguments. For example, NiFi cannot allocate 60% of the resources for use case #1 and 40% of the resources for use case #2. " 5. An. Jan 11, 2021 · Within a NiFi cluster, all the resources are shared by all the existing flows, and there is no resource isolation. Dec 5, 2019 · Kafka and NiFi’s availability in CDP Data Hub allows organizations to build the foundation for their Data Movement and Stream Processing use cases in the cloud. It’s a data logistics platform. May 14, 2019 · Learn about Apache NiFi, the technology that creates dataflows, transfers and processes data!If you want to learn more: https://links. 7. May 26, 2023 · 13 min read. The entire article uses the mentioned components in the following versions: Kafka 2. Apr 18, 2019 · 1. What exactly Apache nifi does. Logging, Pipeline and Cluster Monitoring in Nifi. I also write the metadata to a JSON file. May 25, 2019 · So, in my use case most of the times I will extract the JSON values and will apply expression languages. **The entire seri Mar 13, 2020 · Implementing Streaming Use Case From REST to Hive with Apache NiFi and Apache Kafka. It provides fault tolerance and allows the remaining nodes to pick up the slack. 0, we have a new capability: building processors using… Dec 5, 2022 · Of the 400+ Processors that are now available in Apache NiFi, QueryRecord is perhaps my favorite. You will see the Add Processor dialog. You can use Apache NiFi to move data from a range of locations into a data warehouse cluster running Hive or Impala in CDP Private Cloud Data Services. Apache MiNiFi was developed out of a recognized need to bring the capabilities of NiFi to the "edge" as "agents" -- accessing data from IoT and desktop-level devices, and applying primary features of NiFi at the earliest possible stage. Process group level dataflows created in NiFi can be placed An. After you adjust the OS to fit your expected use case, use Azure VM Image Builder to codify the generation of those tuned images. It excels in scenarios where data lineage and immediate data processing are required. to deploy Nifi! NOTE: with a recent version of OpenShift (=>4. Those 1-2 sentence should then be returned by the description. If you instead use nifi to push to your s3 event-enabled bucket, you can set up SQS to fire Snowpipe automatically. Used versions. Provenance and Lineage: NiFi tracks data provenance and lineage, offering detailed insights into data lifecycle and changes throughout the integration process. Download and configure the CDP CLI. We use a combination of Python and SQL for an apples-to-apples comparison with Spark. NiFi is commonly used in various industries and scenarios, including: Detect files in landing zone 2. There is always the need to handle an incoming source of data, transform it Feb 20, 2017 · You will use the RouteOnAttribute processor with dynamic properties that evaluate the NiFi Expression Language against the provided attributes. I learned this later after having Process groups created for my needs, and now changing them to funnel ( at least, this fits perfectly in my use case). More narrowly focused APIs result in code that requires less boilerplate. You can combine the two based on your needs. From the build folder, do oc apply -f . Basic programming skills Mar 8, 2018 · This Book will contain 14 chapters, to cover NiFi concepts and providing 9+ use cases, so that you can understand the various fine grain detail about Apache NiFi. Apache NiFi is an easy to use, powerful, and reliable system to process and distribute data. 8 and many new features and abilities coming out. Consume Kafka. Use Case. I need a protocol converter/gateway for the messages entering as UDP or TCP and leaving as MQTT. Moreover, Flink can be deployed on various resource providers such as YARN Feb 28, 2019 · I can use, GetFile-->InferAvroSchema-->ConvertCSVtoAvro. You’re on the shoulders of a giant. Those standard processors handle the vast majority of use cases you may encounter. See Additional Details for more information on how to configure this processor and the different use cases that Switch to the base folder or to the overlay you want to use. This includes different soft types of files, such as text files, bin files, and CSV files, to name a few. It enables the users to create data flows quickly and precisely without any specific programming necessary. Mar 16, 2022 · If you have Questions or wanna have a chat - Join Me on Discord at:Apache NiFi Topics Q&A - https://discord. We will use Apache Kudu to store, Apache Impala to analyze, and Tableau to visualize it. A function call consists of 5 elements. This will support PublishKafka_1_0 and ConsumeKafka_1_0. Create a New NiFi Dataflow: - Click on the "Create a new Process Group" button and give it a suitable name, like "Data Ingestion. Recently, I made the case for why QueryRecord is one of my favorite in the vast and growing arsenal of NiFi Processors. O ne of the greatest features NiFi has given us, is the expression language. Completion Strategy. Bonus - Git link for all Templates used in Course. Reading data. Nov 25, 2016 · In other words, NiFi is a server-class application. The arguments Aug 21, 2023 · Apache NiFi Registry—a subproject of Apache NiFi—is a complementary application that provides a central location for storage and management of shared resources across one or more instances of NiFi and/or MiNiFi. Now data can be collected from a variety of protocols By use case, product, and industry. This unique set of features makes NiFi the best choice for implementing Aug 1, 2023 · NiFi 2. Build complex, highly distributed, multi step, multi node, high performance data workflow/pipeline. Use kustomize to build the deployment: kustomize build -o /path/to/output/folder. Other common processors to use in this path include QueryRecord, UpdateRecord , ReplaceText, JoltTransformRecord, and ScriptedTransformRecord. Then create a consume and/or publish flow. easy to use. NiFi is highly concurrent, yet its internals encapsulates the associated complexity. Flow persistence providers store the content of the flows saved to the registry. x releases of NiFi with Java NiFi Use Cases. Present the file for processing 3. Nov 22, 2023 · A common use-case for this is when a particular down-stream system claims to have not received the data. Below is a simplified NiFi workflow to accomplish this: Feb 10, 2021 · Use Case Of Apache NiFi And Apache Spark. NiFi Version 2 Documentation Jan 17, 2024 · Creating and configuring the NiFi Prometheus reporting task. Flink’s features include support for stream and batch processing, sophisticated state management, event-time processing semantics, and exactly-once consistency guarantees for state. We then use the InvokeHTTP processor in order to gather enrichment data that is relevant to our use case. , powerful. May 3, 2019 · NiFi provides many processors out of the box (293 in Nifi 1. gg/qymAvnZqmQData Engineering Topics Q&A -https:/ Dec 31, 2023 · NiFi Data Flow Versioning - NiFi data flow that need to be tested is checked-in with a specific version to NiFi Registry. text file processing, and more. You should something similar to this: Select the ReplaceText processor and click the ADD button. Compare file with files already ingested. First, there is a function call delimiter :. , and. Prometheus exporter for Nifi metrics written in python Mar 7, 2018 · This Book will contain 14 chapters, to cover NiFi concepts and providing 9+ use cases, so that you can understand the various fine grain detail about Apache NiFi. NiFi is not only an ingestion tool. It is not designed for real-time streaming but can Dec 5, 2022 · The use case is very similar to one that I wrote about a couple of years ago: Processing One Billion Events Per Second with NiFi. Also, it is recommended that you go through the NiFi Hands On Training provided by HadoopExam. Data Ingestion: NiFi is commonly used for ingesting data from various sources into a centralized data repository. Technical learning. 0 will only support Java 21 so you want to make sure you have Java 21 installed on your NiFi nodes before upgrading. Moving files has a cost in complexity. NiFi has a web-based user interface for design, control, feedback, and monitoring of dataflows. Meanwhile, Apache Nifi aims to be simple and intuitive, which makes it more approachable for non-technical users. This is a very common use case for building custom Processors, as well. If network issue occurs, entire file transfer does not start over, just that one small piece. Processors offer you a high Mar 27, 2024 · Apache NiFi, a powerful data flow tool, has already proven its robustness across multiple use cases. 0; Impala Use Cases of Apache NiFi. Storage. Nov 27, 2018 · nifi-kafka-1-0-nar-1. 0, Apache NiFi 1. path}/$ {filename} The fully-qualified filename of the file to fetch from the file system. In most cases, it is quite simple to use, if you know the basics of SQL. Jul 2, 2017 · You can use NiFi CLI to export and import flows in NiFi Registry when switching from one persistence provider to another, or for other use cases like syncing two different NiFi Registry instances. reliable. This means that NiFi enables easy collection, curation, analysis and action on any data anywhere (edge, cloud, data center) with built-in end-to-end security and provenance. Multi step data transformation and Jul 28, 2023 · For the sake of simplicity, we cover the four use cases in this post using the Flink Table API. And it can be used for Mar 24, 2022 · In this chapter we are going to see how we can install Apache NiFi Registry. We will install it and make use of to demonstrate its use case. Data transfer from a source to a destination. Track which file you've ingested. NiFi and Kafka have different sets of functions, use cases, architecture, and benefits. This use case guides you through the creation of a data flow that generates FlowFiles containing randomized JSON data and writes this data into an Iceberg table in Hive or Impala. Use Case 1: E-commerce Data Processing Jan 29, 2024 · notes: Most of the time, 1-2 sentences is sufficient to describe a use case. Your case of having many varied data sources is a common deployment pattern for NiFi where users will perform a somewhat tiered approach of: bringing the data in from its respective sources, annotating/extracting key attributes/properties of a piece of data. +1. Oct 15, 2023 · Apache NiFi Use-Case: Suppose you need to ingest data from multiple IoT devices, process it in real time, and store it in a data warehouse. Second is the name of the function - in this case, toUpper. 0; Nifi 1. Sep 29, 2022 · For these use cases, the NiFi flows need to be treated like jobs with a distinct start and end. May 3, 2024 · Apache NiFi is a dataflow system based on the concepts of flow-based programming. Airflow is tailored for batch processing and is more suited for scheduled execution of complex workflows. It's time to put them to the test. Feb 9, 2016 · NiFi can split large files in to smaller files which can be reassembled back in to the original larger files by a NiFi on the other side of the transfer. Data modeling is a bit of an overloaded term, but in the context of your desire to model/shape the data in a way that is useful for you, it sounds like it could be a viable approach. ” up to 8 GB of NiFi’s heap could be used up by this Processor. May 3, 2024 · In this case, we reference the filename attribute and then manipulate this value by using the toUpper function. Sep 1, 2021 · What is the use of Apache nifi, is it used in data science or it is just tool for working on some kind of data. g. Real-time Data Processing: Paul's processors work great and keep all the data routing logic neatly in nifi, which is your typical nifi pattern. Part 1. Here is my understanding of the purpose of the two projects. It is oriented for endpoint solutions and high and low frequency in small packets of data, for Dec 5, 2019 · Kafka and NiFi’s availability in CDP Data Hub allows organizations to build the foundation for their Data Movement and Stream Processing use cases in the cloud. It supports powerful and scalable directed graphs of data routing, transformation, and system mediation logic. Data preparation. Apache NiFi has already proven to be the best when it comes to data routing and simple transformations, but it goes beyond that. 9. Part of the power of the QueryRecord Processor is its versatility. NiFi Version 2 Documentation Use Cases # Apache Flink is an excellent choice to develop and run many different types of applications due to its extensive feature set. Here are sections of the documentation on boolean operations and evaluating multiple attributes . In the event that the description is not sufficient, details may be provided to further explain, by providing caveats, etc. If we compare the use of both NiFi and Spark, you’ll notice that both the software targets an effortless data management system. flow to convert them separately into avro. The course covers file import and export, CSV record data transformation. This helps in identifying and resolving any issues or bottlenecks promptly. It is also used for API training. In this section, we compare data preparation methods for Spark and Flink. The arguments Nov 19, 2022 · Layer 1: Configure infrastructure. Feb 19, 2020 · 2. The data lineage can show exactly when the data was delivered to the downstream system, what the data looked like, the filename, and the URL that the data was sent to – or can confirm that the data was indeed never sent. For people not familiar with NiFi, NiFi as a Function in Jan 20, 2022 · Ease of use. Aug 17, 2019 · NiFi enables new use cases. nq oe zw ng mr tm ej ib nc og