Node.js is an open source, cross platform JavaScript runtime engine to develop server side applications. Node.js uses Google’s V8 engine to compile JavaScript code into native code. Node.js is based on non-blocking, event-driven architecture to help developers create robust and…
We use Node.js to build web application backend and one of the use cases that comes often is a file upload feature. In this tutorial, we are going to learn and build an application that can let user upload multiple…
How many brokers should we have? What is the ideal ram size? Should we use RAID or SSD? We come across questions like this while configuring and deploying a Kafka cluster. In this article, we will cover in brief about…
So far, we have set up a Kafka cluster with an optimal configuration. It’s time to do performance testing before asking developers to start the testing. In order to do performance testing or benchmarking Kafka cluster, we need to consider…
So far we have set up the Kafka cluster with multiple broker and multiple zookeepers. We need a way to see our configuration in a presentable manner. In this article, we are going to set up the Kafka management software…
In the previous article, we have set up the Zookeeper and Kafka cluster and we can produce and consume messages. In this article, we will do the authentication of Kafka and Zookeeper so if anyone wants to connect to our…
Apache Kafka is a distributed streaming platform used by 100’s of companies in the production environment. Kafka, in a nutshell, allows us to do three important tasks: Publish and subscribe to streams of data. Store streams of data. Process streams…
Zookeeper is a centralized service to handle distributed synchronization. Kafka uses zookeeper to handle multiple brokers to ensure higher availability and failover handling. But what if zookeeper failed? We can’t take a chance to run a single Zookeeper to handle…
This article deals with system process and resource allocation monitoring. Htop is external tools available for various Linux packages. For demonstration i am using Ubuntu 14.10 as Linux distribution. Introduction. Htop is process monitoring tool and alternative for “Top” command…
Pull to refresh is a widely adopted feature in mobile apps. Facebook, Gmail, Instagram almost all popular apps have this feature where the user can drag the screen downward that signals the server to send new data. We have already…
