Working with Prometheus Alert Manager tutorials

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DevOps Training Online – Class Recordings – January 2020

Dear Participants, Here are the consolidated URLs of DevOps training videos/class recordings/tutorials AWS Video Tutorial – January 2020 – (PDF…

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How to install and activate plugins in Moodle?

Moodle is an open source platform which is used for managing your course and it is also called CMS (…

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PHP Tutorial for Beginners

What is PHP? It is an open-source general-purpose scripting language that is especially suited for web development. Code executed on…

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SonarQube Interview Questions and Answer Part – 1

Is it right definition of Sonarqube? SonarQube (formerly Sonar) is a quality management platform focusing on continuous analysis of source…

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DevOps Training – Class Recordings/Tutorials – November 2019

AWS Session – Class recording – Tutorials Docker Session – Class recording – Tutorials Jira Session – Class recording –…

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All about AWS Certified Cloud Practitioner- Foundation

This certification path is meant for individuals who are seeking to build and validate overall understanding of the AWS Cloud…

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kubernetes-yaml

Kubernetes – How to Generate yaml files to produce the existing kubernetes resources of cluster?

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gradle-task

Gradle Tasks are exaplained in 10 mins!

Task in Gradle is a code that Gradle execute. Everything such a each type features is powered in Gradle using…

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aws-reserved-instance

How to buy Reserved Instance and verify if Reserved Instances are being used in AWS?

This article give 2 most important information about Reserved Instance. How to buy Reserved Instance in aws? Verify if Reserved…

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ansible-install-centos-rhel

How to install Ansible in Centos 7/RHEL 7?

How to install Ansible in Centos 7/RHEL 7? Install Ansible via Pip in RHEL/CENTOS

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kibana-7-2-install-and-configuration-in-rhel-7-centos

Kibana 7.2 Install and configuration in RHEL 7/Centos

Install and Setup JDK 8+ Download and Install Kibana 7.X Configure Kibana 7.X How to start kibana service?

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elasticsearch-plugin

How to use elastic search EC2 discovery plugin?

Problem To increase the performance in Elasticsearch, many times we add new nodes to Elasticsearch cluster and manually change the…

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elasticsearch-error-node

Elastic Search Error – Node is started with node.data=false, but has shard data

[2019-07-11T09:59:18,013][ERROR][o.e.b.Bootstrap ] [es-master01] Exception java.lang.IllegalStateException: Node is started with node.data=false, but has shard data: [/home/ec2-user/elasticsearch-7.2.0/data/nodes/0/indices/6XsNftnbSbOnzPK3wOKc 0w/0]. Use ‘elasticsearch-node repurpose’ tool…

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elastic-search-error-max-virtual-memory-areas

Elastic Search Error – max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

Errors [2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144] Solution To make it…

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