1. What is Jenkins? Jenkins is an open-source automation server that helps automate various aspects of software development, such as building, testing, and deploying code. It allows developers to set up continuous integration and continuous delivery (CI/CD) pipelines, streamlining the development and release process. 2. How can I install Jenkins? You can install Jenkins by…
DataStax Astra DB simplifies cloud-native application development, and reduces time to install, deploy and scale from weeks to minutes. Astra DB eliminates operational overhead, the biggest obstacle to using Apache Cassandra, the open-source NoSQL database behind the largest applications in the world, including Netflix and Instagram. It provides the ability to develop and deploy data-driven…
History & Origin of Appium Appium was originally developed in 2011 by Dan Kueller under the name “iOSAuto”, written in the C# programming language. In August 2012 the program was open-sourced using the Apache 2 license. In January 2013, Sauce Labs agreed to fund the development of Appium and move its code to Node. What…
1) What is Apache Kafka? Apache Kafka is a publish-subscribe open source message broker application. This messaging application was coded in “Scala”. Basically, this project was started by the Apache software. Kafka’s design pattern is mainly based on the transactional logs design. 2) Enlist the several components in Kafka. The most important elements of Kafka…
Apache Cassandra is an open source non-relational, or NoSQL, a database that enables continuous availability, tremendous scale, and data distribution across multiple data centers and cloud availability zones. It is a highly scalable and available distributed database that facilitates storing and managing high-velocity structured data across multiple commodity servers without a single point of failure….
History & Origin of Jmeter JMeter was developed by Stefano Mazzucci of the Apache Software Foundation. The first version 1.0 was released in 1998. Revised version 5.1, was February 19, 2019. JMeter was first developed by Stefano Mazzocchi of Apache Software Foundation. He sat down and built it primarily to test the performance of Apache…
Apache Kudu is a free and open source columnar storage system developed for the Apache Hadoop. It is an engine intended for structured data that supports low-latency random access millisecond-scale access to individual rows together with great analytical access patterns. It is a Big Data engine created make the connection between the widely spread Hadoop…
Apache Druid is among the most popular open-source Apache Druid is a real-time analytics database designed for fast slice-and-dice analytics (OLAP). As pre-existing open-source databases like Relational Database Management System (RDBMS) and NoSQL were incapable of offering a low latency data ingestion and query platform for interactive applications, the need for Druid was stimulated. Apache…
What is Apache MXNet ? MXNet is an open-source deep learning framework that allows you to define, train, and deploy deep neural networks on a wide array of devices, from cloud infrastructure to mobile devices. It’s highly scalable, allowing for fast model training, and supports a flexible programming model and multiple languages. MXNet contains a…
1) What is Selenium and what is composed of? Selenium is a suite of tools for automated web testing. It is composed of Selenium IDE (Integrated Development Environment) : It is a tool for recording and playing back. It is a firefox pluginWebDriver and RC: It provide the APIs for a variety of languages like…
1) What can be monitored using Zabbix? Zabbix provides monitoring metrics, such as network utilization, CPU load and disk space consumption. The software monitors operations on Linux, Hewlett Packard Unix (HP-UX), Mac OS X, Solaris and other operating systems (OSes); however, Windows monitoring is only possible through agents. 2) Is Prometheus better than Zabbix? Prometheus…
The Apache MXNet (MXNet) is an open source deep learning framework that allows you to define, train, and deploy deep neural networks on a wide array of platforms, from cloud infrastructure to mobile devices. It is highly climbable, which allows for fast model training, and it supports a flexible programming model and multiple languages. The…
Short description about Hive Hive is a data warehouse system that is used to analyze structured data. It is built on the top of Hadoop. It was developed by Facebook. Hive provides the functionality of reading, writing, and managing large datasets residing in distributed storage. It runs SQL-like queries called HQL (Hive query language) which…
Q1. What Is Openshift? Answer : OpenShift is a cloud development Platform as a Service (PaaS) hosted by Red Hat. It’s an open source technology which helps organizations move their traditional application infrastructure and platform from physical, virtual mediums to the cloud. It supports a very large different of applications, which can be easily developed…
Short intro About Apache Kafka Apache Kafka is a popular tool for developers because it is easy to pick up and provides a powerful event streaming platform complete with 4 APIs: Producer, Consumer, Streams, and Connect. Often, developers will begin with a single-use case. This could be using Apache Kafka as a message buffer to…
Short description about Apache Cassandra Apache Cassandra is a highly scalable, high-performance distributed database designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. It is a type of NoSQL database. Let us first understand what a NoSQL database does. Moving to questions and answers:…
Q1. What is RDD? Ans. RDD (Resilient Distribution Datasets) is a fault-tolerant collection of operational elements that run parallel. The partitioned data in RDD is immutable and distributed. Q2. Name the different types of RDD. Ans. There are primarily two types of RDD – parallelized collection and Hadoop datasets. Q3. What are the methods of…
1) What is Nginx? Nginx is a type of an open source web server which is especially used for reverse proxy, load balancer, mail proxy and for the HTTP cache. Nowadays NGINX software is most commonly used by various companies. NGINX can run on Linux, Mac OS X, Solaris, AIX, HP-UX, and the BSD variants….
1) What is Apache Tomcat? Apache Tomcat is basically a Web Server and Servlet system which is an open-source (i.e. freely available on the internet) and is created by Apache Software Foundation. It is the server mostly used by Java Developers. The server is nothing but a computer program that provides service to other computers….
1) What do you mean by Apache Web Server? Apache web server is the HTTP web server that is open source, and it is used for hosting the website. 2) How to check the Apache version? You can use the command httpd -v 3) What is the port of HTTP and https of Apache? The…
Apache HTTPD – Directory Structure CORE/common Directories conf modules htdocs logs New structure in Yum/RPM base installation conf conf.d conf.modules.d modules htdocs logs Structure in Tarball/source code base installation conf modules htdoc Logs Error Build Include Man Manual Cg-bin Structure in Ubuntu system in apt get base installation apache2.conf Conf-available conf-enabled Envars Magic Mod-variable Mod-enabled…
What is XAMPP? XAMPP is an acronym that stands for Cross-Platform, Apache, MySQL, PHP, and Perl, with the Ps standing for PHP and Perl, respectively. It’s an open-source web-solutions kit that provides Apache delivery for a variety of servers and command-line executables, as well as Apache api, MariaDB, PHP, and Perl modules. Until releasing a…
When Showing this type error in xampp localhost at running localhost using xampp server. Then First You will go to in file location as below “C:\Windows\System32\drivers\etc” and open “hosts” file and check this below line After that open file location as below “C:\xampp\apache\conf\extra” and open “httpd-vhosts.conf” and check below line if it code will be…
Step 1: Stop the Apache Step 2: and Then Restart Apache 👉 if above command will not work in your machine then do below steps: Step 1 : check the httpd process Step 2 : Kill all the process References : Click HereClick Here Chandan KumarMotoShare.in provides the perfect two-wheeler for every occasion—daily commuting, weekend…
Hey friends i am going to discuss with some common error with xampp. i installed xampp in my pc and working with Laravel version 5.8 and php version 7.1.3 so i face a lot issue when trying to run php artisan commands. so i googled and found so many solution but i solve it in…
First of all, we have to see some basic settings which are situated in php.ini. whenever we upload a database which size will be greater than max upload size and others some more settings also, then you will see incorrect format parameter under PHPMyAdmin. you can see below the error message image: so let’s see…
Introduction What Can I Do? Creating A .htaccess File What is .htaccess Why Not to use .htaccess Error Documents | Custom Error Pages Blocking users by IP Blocking users/ sites by referrer Block traffic from a single referrer Block traffic from multiple referrers Blocking bad bots and site rippers Change your default directory page Redirects…
scmuser created the topic: Start Apache with normal user Hi, I have few normal user in linux to whom I want to give apache http start and stop access? any idea how to to do this? When i start start apache httpd, then i get some error somthing like permission denied .. [code language=”css”] ./apachectl…
rajeshkumar created the topic: Apache Tomcat Good url Collection Tomcat : How to increase the Java heap size www.serveridol.com/2011/07/28/tomcat-increase-java-heap-size/ Regards, Rajesh Kumar Twitt me @ twitter.com/RajeshKumarIn Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock…
rajeshkumar created the topic: Apache Ant: Copy Task full reference This copies all files in directories called images that are located in the directory tree defined by ${src} to the destination directory defined by ${dist}, but excludes all *.gif files from the copy. The same as the example above, but expressed using nested elements. Copy…