Kafka Node Debugging

Istio, Consul, Linkerd) Have an understanding of operational management of message brokers at scale (i. My Quest for Knowledge and a desire to share it back brings me here. Should you go all-in on cloud native? Using purpose-built storage, compute, databases, and more that‘s native to a specific cloud sounds ideal but could mean double systems. If your Kafka is up and running at localhost, you should see similar debug messages. Enable Kerberos Using Cloudera API. The pm_buffer module in above nxlog. [[email protected] nodejs]$ node producer_nodejs. The former data is for activities like computing business metrics, debugging, alerting, and dashboarding. Since the data is a CSV file, we know that it is new-line delimited. Do you want to speed up your debugging process? This blog post is designed to help you do just that by empowering you with the knowledge of how to debug RHMAP Cloud Apps and MBaaS services locally using VS Code. All the complexity of balancing writes across partitions and managing (possibly ever-changing) brokers should be encapsulated in the library. hide-internal-columns=false where kafka. Hi, We are seeing this issue again with our Kafka zookeeper setup. A full URL will look. kafka-bytes-in and kafka-messages-in are pretty much the same across servers which seems to suggest that there isn't much imbalance. You can configure the default group using az configure --defaults group=. Our goal is to make it possible to run Kafka as a central platform for streaming data, supporting anything from a single app to a whole company. The punch is a ready-to-go-production data analytics solution. This feature is only supported in the Ultimate edition. 0 for Visual Studio (NTVS) is now available for download! NTVS is a free, open source extension for Visual Studio 2012 and Visual Studio 2013 that turns Visual Studio into a Node. In the Service's YAML configuration file, under section "exporters" and sub-section "kafka", please configure these fields. However, installing a single node Kafka cluster on your local machine is a specific activity for the Kafka developer. Kafka Basics, Producer, Consumer, Partitions, Topic, Offset, Messages Kafka is a distributed system that runs on a cluster with many computers. 有1个分区, 3份备份 第二行表示每个分区的信息,对分区0,领导节点id是2, 备份到2,0,1. Metadata: Updated. Scrum, TDD. Features; Install Kafka; API. Unfortunately, the REST API which Kafka Connect nodes expose cannot currently be protected via either Kerberos or SSL; there is a feature-request for this. We live in a world where there is a massive influx of data and Apache Kafka comes as a boon in today's times and it is probably the market leader in big data solution providers out of the other big data solution providers. t applications developed using CA API Suite of Products and providing resolutions. That is to say K-means doesn’t ‘find clusters’ it partitions your dataset into as many (assumed to be globular – this depends on the metric/distance used) chunks as you ask for by attempting to minimize intra-partition distances. This article describes the new Kafka Nodes, KafkaProducer and KafkaConsumer, in IBM Integration Bus 10. Compiler Lexical Parser Grammar Function Testing Debugging Shipping Data Type Versioning Design Pattern. Since there is only one Kafka node, we can use regular, local snapshots to backup and restore. Permissions required: fc or a. kafka-python is best used with newer brokers (0. Nxlog supports buffer to store the logs during a temporary network outage and send those buffered logs to Loggly when network is back. In an attempt to adding a separate disk for zookeeper transaction logs,. It doesn't necessarily have to do anything with the network (a Lambda can be trigerred every 1 minute, for example, not by calling an HTTP call). First we need to introduce configurations for Stream. wimbledon kafka. The pm_buffer module in above nxlog. Name of resource group. Both are basically maintained by one dude each. com/archive/dzone/Become-a-Java-String-virtuoso-7454. Components – Project templates – IntelliCode – npm integration – Interactive (REPL) environment window – Local and remote advanced debugging – Profiling tools to track performance – Unit testing support – TypeScript integration. In this easy-to-follow book, you'll explore real-world examples to collect, transform, and aggregate data, work with multiple processors, and handle real-time events. 17 hours ago · Chandra fixed a bug in the node-interface cache that could cause issues when nodes are deleted. Kafka uses Simple Logging Facade for Java (SLF4J) for logging. +1 fixing "Closing socket connection"+1 more debug logs I have had to add debug logs on many occasion but never patched because the priority didn't seem to be there for someone to review and commit it. 8 and get a test broker up and running. Environment variables are key-value pairs that you create and modify as part of your function configuration, using either the AWS Lambda Console, the AWS Lambda CLI or the AWS Lambda SDK. writing this post on setting up multi-targeted debugging using VSCode for a Node. js client for Apache Kafka 0. Gateway nodes Head nodes Worker nodes Edge nodes Zookeeper nodes 57. [[email protected] nodejs]$ node producer_nodejs. Use Cases MemSQL Pipelines is ideal for scenarios where data from a supported source must be ingested and processed in real time. TRAINING METHODOLOGY. If you want to know more about this clustering capability, I recommend reading this blog, which covers the basics. For convenience I copied essential terminology definitions directly from Kafka documentation:. How to take an existing executable and host it on Service Fabric. Search or post your own NXLog documentation and logging from Windows question in the community forum. Early at startup I get. AdminClient, creating topics) (All cleanly deployed in fresh Docker containers. It doesn't necessarily have to do anything with the network (a Lambda can be trigerred every 1 minute, for example, not by calling an HTTP call). So, your life is easy when you have a Linux or a Mac laptop with an IDE such as IntelliJ IDEA. Presence of Clique is immensely important since it helps in avoiding node failures. Also, remember that running a three-node Kafka cluster on a single host is not for the faint of heart, so ensure that your host has sufficient memory and CPU resources to handle the load. This API will allow you to add Machine Learning capabilities to your jBPM project by being able to use, for instance, models trained with historical task data to. Last month, at OpenShift Commons Gathering Milan, Paolo Gigante and Pierluigi Sforza of Poste Italiane, showed the audience how they built a microservices based banking architecture using Apache Kafka and OpenShift. 10 Kafka protocol so it's not likely to support timestamps on messages. 0 (LTS) Released A significant LTS release for production systems with updates to V8, libuv, npm, and ICU (Unicode support), OpenSSL 1. Run the following command in the root directory of your Node-RED install. Stackdriver. You can see that it produces the records to the topic CountsTopic. Apache Kafka on Heroku is an add-on that provides Kafka as a service with full integration into the Heroku platform. # This is one file from my current assignment where I am making a Kafka producer # that will allow the other parts of the application to send messages to Kafka # but with the ability to await both that the message was queued for delivery. js, co-founder of the Node. You design your topology here using fluent API. For this you can use the command: npm install kafka-node. Set this attribute to true to enable internal log4net debugging for this configuration. Easy prototyping with desktop console like UI, Skia drawings and several REST like node. If you would like to look through your use-cases, you may click-through the use-cases section and use Acceldata appropriately. Retrieves metrics information for nodes in a cluster. Heroku Exec is a feature for creating secure TCP and SSH tunnels into a dyno. Quite often HDFS problems will manifest themselves in various components of Hadoop framework. But we were surprised to find that we could quickly add client x. /** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. Once you complete those two items, you will be all set for Kafka development including unit testing and debugging your applications in a local development environment. Removes one or more server nodes from the system. Action nodes will have Job's action details. Return true if the pending call was either * transferred to the callsToSend collection or if the call was failed. Node SQLite3 : This is a node. For example, to control the debug log level for the Kafka Sendmessage activity, set the following parameters:. Im just running a one node kafka setup, which is not hard to setup with docker. node-red -v. All configuration parameters have corresponding environment variable name and default value. The node properties file, etc/node. This tutorial introduces you to VS Code as a. Running and Debugging Node. js application. A single node can handle hundreds of read/writes from thousands of clients in real time. To protect Logstash and Elasticsearch against such data bursts, users deploy buffering mechanisms to act as message brokers. Migrating Kafka's Zookeeper With No Downtime Toby Cole, Engineering Manager Jan 17, 2019 Here at Yelp we use Kafka extensively. Consumer Group: A consumer group includes the set of consumer processes that are subscribing to a specific topic. When I make test on Linux, it's working fine: Linux(CentOS6. The new volume in the Apache Kafka Series! Learn the Kafka Streams data processing library, for Apache Kafka. kafka-commits mailing list archives Site index · List index. Before we dive in deep into how Kafka works and get our hands messy, here's a little backstory. The instructors were very experienced and knowledgeable regarding full-stack development. This is in addition to the global rate (which already exists). Debugging. Works with Apache Kafka 0. node-rdkafka is a binding around the C library so it has features much more quickly, but it adds build complexity to deploying your application. Logstash unable to read messages from kafka. Kafka will auto flush on its own, but you can also call flush explicitly which will send. node maintenance. Kafka being a distributed system, it runs in a cluster, i. You can use the same JVM that Kafka uses. Display XML base of the node. 2016-03-25 14:38:02 DEBUG Metrics:220 - Removed sensor with name node-2147483646. 8 and Single node Kafka cluster in the earlier section. First, at a glance both sets of benchmark data looked very clean and fittable to the Universal Scalability Law to assess where the bottlenecks lie. You can vote up the examples you like and your votes will be used in our system to generate more good examples. We already covered JDK 1. js Read More: "How to Debug Node. First, let's generate a small SSTable for a table that represents stock ticker data. You should also define the maximum amount of main memory the JVM is allowed to allocate on each node by setting the jobmanager. You can use a KafkaProducer node in a message flow to publish an output message from a message flow to a specified topic on a Kafka server. js Read-Eval-Print-Loop (REPL) is an interactive shell that processes Node. Display XML base of the node. Kubernetes also provides features for autoscaling, read more about auto scaling Kubernetes Pods should that be a requirement. The following script starts a JobManager on the local node and connects via SSH to all worker nodes listed in the slaves file to start the TaskManager on each node. Execute all below steps in each node to install Kafka in cluster mode. We use cookies for various purposes including analytics. Yet, in certain cases, I did not use lineinfile because I wanted to keep the original files intact to be able to start the configuration all over again without having to go to the process of copying archives and installing them from scratch. Anyway, I still feel that I may have missed something. This page describes all the commands that are possible with the "storm" command line client. Scrum, TDD. We use cookies and similar technologies to ensure you get the best experience on our websites. GridGain Ultimate Edition provides snapshots and recovery capabilities for the deployments with Ignite native persistence. The idea is to allow users to toggle the recording of these metrics when needed for debugging. com/community/tutorials/how-to-install-apache. If you have multiple Kafka sources running, you can configure them with the same Consumer Group so each will read a unique set of partitions for the topics. AdminClient, creating topics) (All cleanly deployed in fresh Docker containers. Kafka - Docker Single Node (Multiple Service Broker. Perhaps we grep them looking for errors or warnings, or setup an occasional nagios log regex monitor. we are getting invalided XML from KAFKA system. The batch pipeline data is more exploratory, such as ETL into Apache Hadoop and HP Vertica. The RabbitMQ Management is a user-friendly interface that let you monitor and handle your RabbitMQ server from a web browser. Each process is also assigned a unique UUID. Posted by wp_prb 2017/11/04 Posted in Apache Kafka, kafka Tags: debug, kafka Leave a comment on Quick Method to see Kafka-Broker uptime Unveiling the Wire I know you all have heard the saying "Teach a Man to Fish, and you feed him for a lifetime. js is rich with number of popular packages registered at package registry called NPM. Type to start searching GitHub. Explanation: ZooKeeper provides an infrastructure for cross-node synchronization and can be used by applications to ensure that tasks across the cluster are serialized or synchronized. So, your life is easy when you have a Linux or a Mac laptop with an IDE such as IntelliJ IDEA. The debug level records all metrics, while the info level records only some of them. It is used by PagerDuty for many critical systems, and for five months it failed on us a lot. Keep in mind if you try to use snappy without installing it kafka-node will throw a runtime exception. The ListSFTP processor will generate 3 flow files and, for now, all flow files are only on the primary node: Now the Remote Process Group has been configured to connect to the cluster itself, and I set the relationship going from ListSFTP to the Remote Process Group to connect with the input port I created (you may have multiple input ports in the remote system to connect with and you can. js Driver for Apache Cassandra are now available. Introduction This document provides Hands-On Exercises for the course Confluent Developer Training for Apache Kafka. An open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach. kafka-python is designed to function much like the official java client, with a sprinkling of pythonic interfaces (e. It doesn't necessarily have to do anything with the network (a Lambda can be trigerred every 1 minute, for example, not by calling an HTTP call). For convenience I copied essential terminology definitions directly from Kafka documentation:. kafka-python is best used with newer brokers (0. If you work in domain, where the growth in messages is unpredictable or polynomial at best, then Kafka is safe bet. Google Cloud Platform (GCP) has tracing, logging, debugging, and monitoring tools built into the Google Cloud Platform Console, where you can view detailed activity in your app and identify critical issues or trends. Name of resource group. The output shows the same messages that you entered during your producer. How to test a consumer. You can safely skip this section, if you are already familiar with Kafka concepts. VS Code's built-in debugger helps accelerate your edit, compile and debug loop. For production scenarios where there is more than one Kafka node in the cluster, it is highly recommended that customers use 3DSnap for application consistent backup and recovery. The debugging mode slows down the server since it disables some JVM optimizations that otherwise provide the significant performance boost. Am doing some toe-dipping into Apache Kafka. Permissions required: fc or a. Spring, Hibernate, JEE, Hadoop, Spark and BigData questions are covered with examples & tutorials to fast-track your Java career with highly paid skills. npm install node-red-contrib-confluent Start node-red as normal or use the -v flag for more verbose debugging. js client for Apache Kafka 0. In this section, we will learn Installing Maven 3 and IntelliJ IDEA. Even when end users aren’t taking advantage of compacted topics, Kafka makes extensive use of them internally: they provide the persistence and tracking of which offsets consumers and consumer groups have processed. Kafka - Docker Single Node (Multiple Service Broker. There are two basic ways to debug Kafka clients when you want to run everything on your machine. 9 and later. Debugging problems. Now here we create a producer with Python ! Install kafka-python and jupyter with the following command on the head node. VS Code has built-in debugging. I am doing a similar project where i have a Kafka producer on its own server and am using Kafka-Node as a consumer for my application. Easy Monitoring & Custom Alarms. js client with Zookeeper integration for Apache Kafka 0. This event allows you to connect functions to IBM Message Hub, a scalable message bus in the cloud, based upon Apache Kafka. Kafka Browser To simplify the debugging, you can use the Kafka Browser and follow your messages in real time. Answering these questions allows the Producer to route the message appropriately. Return true if the pending call was either * transferred to the callsToSend collection or if the call was failed. Our goal is to make it possible to run Kafka as a central platform for streaming data, supporting anything from a single app to a whole company. name=kafka kafka. Google Cloud Platform (GCP) has tracing, logging, debugging, and monitoring tools built into the Google Cloud Platform Console, where you can view detailed activity in your app and identify critical issues or trends. threshold: Optional attribute. The consumer will transparently handle the failure of servers in the Kafka cluster, and adapt as topic-partitions are created or migrate between brokers. node metrics. Chandra fixed an issue with duplicate chunks in large Karaf messages. Anubhav Kale Running 400+ node Cassandra clusters in Azure 2. Early at startup I get. Starting with Kafka 0. When the node is subsequently provisioned, these are preserved (unless, as is possible with UI-based provisioning, they are optionally overwritten, and the node is thus re-initialized). GridGain comes with a set of security features that enable Privileged Access for remote clients and other cluster members. js course is to help the learners build fast, concurrent, lightweight, efficient data-intensive real-time applications that run across the distributed systems. Caveat emptor¶. In this journal, we will be having a look at the options we have to find and fix bugs in your Node. This page displays summary and detailed information about memory usage by the statestored. node maintenance. Portworx supports creating Snapshots for Kubernetes PVCs. GitHub Gist: star and fork ayiis's gists by creating an account on GitHub. Fiddler is a free web debugging proxy that logs all HTTP/HTTPS traffic between your web application and the Internet. Open Banking with Microservices Architectures and Apache Kafka on OpenShift. Clone via HTTPS Clone with Git or checkout with SVN using the repository's web address. This feature is only supported in the Ultimate edition. sbt ) for basic logging where messages of level INFO and higher are printed to System. Writing a Kafka Consumer in Java Learn about constructing Kafka consumers, how to use Java to write a consumer to receive and process records, and the logging setup. 10 including Confluent Open Source and Confluent Enterprise distributions (versions 2. This is a stateless back-end service using Service Remoting. Installation @pefish/kafka-node;. js Applications" This basic debugging is not a fully featured debugging agent. Kafka clusters assume that all nodes are equal. The main focus of these releases was to add support for speculative query executions. Kafka as the Pub/Sub system. Also, remember that running a three-node Kafka cluster on a single host is not for the faint of heart, so ensure that your host has sufficient memory and CPU resources to handle the load. Final Goal - I would like to be able to attach a Node. See the complete profile on LinkedIn and discover Saif’s connections and jobs at similar companies. Running a zookeeper and kafka cluster with Kubernetes on AWS I have been recently working with Russ Miles on coding microservices that follow principles he has laid out in the Antifragile Software book. Is their any Option in channel parameter to pick multiple records. I am fairly new to Kafka-Node, and don't have much experience with it, but i can try to share some of the insights i have found. kafka-commits mailing list archives Site index · List index. Kafka as the Pub/Sub system. Apache Kafka is a piece of software which, as all pieces of software, runs on actual computers — your own computer for the sake of this blog post. js Foundation's mission is to enable widespread adoption and help accelerate development of Node. Course included presentations, exercise descriptions and code solutions. Applies to: Big Data Appliance Integrated Software - Version 4. Features; Install Kafka; API. The main focus of these releases was to add support for speculative query executions. /** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. Display XML base of the node. 9 and later. kafka-zookeeper is, per this , "A high-level client library in Node. The type T stands for the type of records a Encoder[T] can deal with. Running a container, and. Retrieve the output from Amazon S3 or HDFS on the cluster. You can: Fetch definitions of all metrics available in your environment with the GET list of metrics definitions call. Apache Kafka. All kinds of things change internally when you move from a one-node cluster to two-node cluster. I have a topic set up and it appears to work great, but after a while I noticed my log starting to fill up with what appears to be some kind of loop for metadata updates. Also, the debugging mode can be a potential security risk. This is accomplished by configuring pluggable authentication and authorization mechanisms, as well as providing full auditing capabilities that allow recreating any event in the system to be traced back to the user responsible for the event. Run the same commands as above but add -v -X debug=generic,broker,security. One of the key features of Visual Studio Code is its great debugging support. The Project. Unlike other offerings, it provides a simple two-node deployment for high availability and scales beyond with its distributed deployment to cater to extremely high workloads. Write the resulting output streams back to Kafka topics, or expose the processing results of your application directly to other applications through interactive queries (e. kafka-console-consumer --bootstrap-server kafkainfo --topic test --from-beginning. In several previous articles on Apache Kafka, Kafka Streams and Node. Everything on this channel is an individual effort of mine. When a node starts, it outputs start-up information to the console, including the information about the configured logging library. Idempotent, yes but how ? One of Ansible great strengths is the fact that most of its command are idempotent. js to create a fast, reliable, and scalable data processing pipeline over a stream of events. Moves one or more nodes to a different topology. Since the data is a CSV file, we know that it is new-line delimited. I am fairly new to Kafka-Node, and don't have much experience with it, but i can try to share some of the insights i have found. Debugging Kubeless. I try to use Kafka with version 0. 11 the Kafka Producer supports two additional modes beyond `send`. Debugging: Pipelines makes it easier to debug each step in the ETL process by storing exhaustive metadata about transactions, including stack traces and stderr messages. Why join Skills Matter? Join our community to learn and share skills with thousands of developers passionate about software craftsmanship and progressive technologies. 0 (I have no input flow control unlike Spark 1. Both are basically maintained by one dude each. AdminClient, creating topics) (All cleanly deployed in fresh Docker containers. js developers who intend to start implementing distributed messaging system using Kakfa. Running 400+ node Cassandra clusters in Azure Anubhav Kale Senior Software Engineer – Microsoft Office 365 anubhav. It also interacts with the assigned kafka Group Coordinator node to allow multiple consumers to load balance consumption of topics (requires kafka >= 0. Debugging Kubeless. Portworx supports creating Snapshots for Kubernetes PVCs. KafkaClient; Producer; HighLevelProducer. In Samza, we have put particular effort into supporting high-performance, reliable state. Kafka uses Simple Logging Facade for Java (SLF4J) for logging. Is their any Option in channel parameter to pick multiple records. Kerbal space program addict. js expressions. JS for interacting with Apache Kafka, I have described how to create a Node. Now that we have your Node app waiting in a debugger mode, it's time to attach to it! (These instructions assume Version 1. For example, Coherence will not create backups in a single-node setup, but it will as soon as the 2nd node is added to the cluster. The topic should have a replication factor greater than 1 (2, or 3). This document assumes that the reader generally knows how to set up a Kafka cluster and a ZooKeeper ensemble. I try to use Kafka with version 0. js applications. 8 and Single node Kafka cluster in the earlier section. ephemeral node not deleted after client session closed. I am fairly new to Kafka-Node, and don't have much experience with it, but i can try to share some of the insights i have found. This file is typically created by the deployment system when Presto is first installed. When a node starts, it outputs start-up information to the console, including the information about the configured logging library. Quick access to solutions means you can fix errors faster, ship more robust applications and delight your end users. js" in the dropdown. The Bitnami Kafka cluster has been configured as a multi-broker cluster with several Kafka brokers and Zookeeper nodes. Unfortunately, the REST API which Kafka Connect nodes expose cannot currently be protected via either Kerberos or SSL; there is a feature-request for this. auth to be requested or required on the Kafka brokers config, you must provide a truststore for the Kafka brokers as well. After having extracted the system files, you need to configure Flink for the cluster by editing conf/flink-conf. Hi folks, Kafka output plugin is working perfectly on Linux but it seems not working correctly on Windows, not sure how to debug it. Slovak Republic. leader 表示负责某分区全部读写的节点. ENV: HDP 2. All examples require: A Kubernetes cluster with Knative Eventing v0. As a developer you'll probably be interested on the investigation of Kubeless code. Before attempting to debug a workflow, it’s a good idea to validate it by simply clicking Validate in the Execute tab. Gateway nodes Head nodes Worker nodes Edge nodes Zookeeper nodes 57. I am setting up a kafka+zookeeper cluster. In this tutorial, you use Python 3 to create the simplest Python "Hello World" application in Visual Studio Code. js client with Zookeeper integration for Apache Kafka 0. Retrieve the output from Amazon S3 or HDFS on the cluster. Configuration. In all cases. properties:. Set the jobmanager. 2 node and those created by a Cassandra 3. The collection of libraries and resources is based on the Awesome Node. While the command-line flags configure immutable system parameters (such as storage locations, amount of data to keep on disk and in memory, etc. Look for an [UPDATE] tag to find the updates. Components – Project templates – IntelliCode – npm integration – Interactive (REPL) environment window – Local and remote advanced debugging – Profiling tools to track performance – Unit testing support – TypeScript integration. It allows for SSH sessions, port forwarding, remote debugging, and inspection with popular Java diagnostic tools. js driver for SQLite3. Livy Batch Job Submission Livy is an open source REST interface for interacting with Apache Spark remotely from. How to test a consumer. js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world. Node JS Training in Bristol, United Kingdom Learn Node JS to create complex and data centric web applications. You can: Fetch definitions of all metrics available in your environment with the GET list of metrics definitions call. Migrating Kafka's Zookeeper With No Downtime Toby Cole, Engineering Manager Jan 17, 2019 Here at Yelp we use Kafka extensively. js client with Zookeeper integration for Apache Kafka 0. table-names defines the list of topics delimited by a ,. Use the kaa-node. Kafka clusters assume that all nodes are equal. js version 8 people are starting to promisify these asynchronous functions and using await inside of a try/catch. The solution was to manually assign a different node as the partition leader. One of the key features of Visual Studio Code is its great debugging support. It is written in JavaScript, does not require compiling. (1) Critical services are all Up on the Node and just a nodeLostService is sent. Another thing that we noticed shortly after starting to run real traffic on the infrastructure was that almost all of the consumer traffic was going against a single Kafka node. It would be better to simply exclude the global store's node groups in this function so that the subtopology ids and task ids are consecutive. The debugging mode slows down the server since it disables some JVM optimizations that otherwise provide the significant performance boost. kafka官方文档的Producer的bootstrap. It provides all most all connection/query from SQLite3. If checkpointing is disabled, offsets are committed periodically. Full-stack webdeveloper. Only Administrators can change a node's attributes. This week's Node news Read this e-mail on the Web Node Weekly March 8, 2018 #228 Gibson Fahnestock Node v8. js applications. The consumer will transparently handle the failure of servers in the Kafka cluster, and adapt as topic-partitions are created or migrate between brokers. a connector might consist of a SourceConnector + SourceTask to poll data from a datastore into a kafka topic. Kafka is named after the acclaimed German writer, Franz Kafka and was created by LinkedIn as a result of the growing need to implement a fault tolerant, redundant way to handle their connected systems and ever growing pool of data.