Hadoop Big data

What is contract testing

What is contract testing? Contract testing is famous in microservices world. When we consider less numbers of microservices,¬† then contract testing is not so necessary.However when you look at the Amazon or Netflix microservices mesh, it is countless. Such cases it is extremely difficult for developer or tester to maintain unit/automation test suite as per …

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How to setup angular project

How to setup Angular project and generate components ? install latest nodejs from nodejs.org Go to git bash/powershell ISE/CMD type following commands, install Angular : npm install -g @angular/cli ng new my-newweb-app ng g c myFirstModule or type mg generate component myFirstModule (optional) go to project folder ” my-newweb-app ” via commandline itself type mg …

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What is ELK

What is ELK (Elastic search, Logstash, Kibana) ? ELK stack is a combination of 3 open-source products as below, Elasticsearch, a search and analytics engine. Logstash, that index the data to Elasticsearch. Logstash has a config file that has input,filter and output section. Config file looks like json file. Kibana, a visualization tool which provides …

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DevOps vs DevSecOps vs NetOps

What is DevOps vs DevSecOps vs NetOps ? DevOps is the practice of using set of tools, processes and practices to get good agility in software implementation to customers. It combines Dev (software development ) and Ops (information operations). DevOps shortens the development lifecycles and provides Continous Integration & Delivery.¬†DevSecOps is when security features are …

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Jenkins job vs pipeline

What is Jenkins jobs and Jenkins pipeline ? Jenkins jobs and Jenkins pipeline are essentially same, however pipeline is more staged flow of jobs. For Jenkins pipeline, Jenkinsfile is used.What is Jenkinsfile?Jenkinsfile is a text file placed in the root project directory. The Jenkinsfile has multiple stages like build, unit test, sonar test, functional,¬† regression, …

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Summary on Cloud, Machine learning, Artificial intelligence and other emerging technologies

Summary on Cloud, Machine learning, Artificial intelligence and other emerging technologies Salesforce Salesforce.com is an American cloud computing company. Salesforce offers Software as a Service (SaaS) platform which helps in Customer Relationship Management. It has a multi-tenant architecture and subscriptions.  The following are the application clouds in Salesforce CRM. Sales Cloud 2. Service Cloud 3. Marketing …

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Hadoop Big Data quick summary

Hadoop Big Data quick summary Hadoop – is a Java based programming framework that supports the processing of large data sets in a distributed computing environmentHadoop – is based on Google File System (GFS)Hadoop – uses thousands of nodes this is the key to improve performance.Hadoop – is a Distributed File System or HDFS, which …

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Hadoop MapReduce

Hadoop MapReduce – Hadoop MapReduce is the main core components of Hadoop and is a programming model Hadoop MapReduce helps implementation for processing and generating large data sets, it uses parallel and distributed algorithms on a cluster. Hadoop MapReduce can handle large scale data: petabytes, exabytes. Mapreduce framework converts each record of input into a …

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