All Blog

preview image Programming

Basics of Data Search in Elasticsearch

by Anurag Srivastava , Aug 4, 2018, 7:02:21 AM

Day by day the volume of data is increasing as we are moving towards the digital age and transforming things into the Internet of things. Take a simple example of smartwatch what it does, it measures the steps, BP, heart rate, etc and pushing to a server from where we can access our health-rel...

preview image Programming

Elasticsearch Rest API

by Anurag Srivastava , Jul 31, 2018, 6:16:42 PM

Elasticsearch provides extensive REST APIs to integrate, query and manage the data. In this blog, I will discuss some of the main APIs which we can use regularly from an extensive list of REST APIs.We can do many things using Elasticsearch REST APIs like:Check our cluster, ...

preview image Programming

Bucket Aggregation in Elasticsearch

by Anurag Srivastava , Aug 29, 2018, 7:15:06 PM

Bucket aggregation is like a group by the result of the RDBMS query where we group the result with a certain field. In the case of Elasticsearch, we use to bucket data on the basis of certain criteria. In metrics aggregations, we can calculate metrics on a field while in the bucket we d...

preview image Programming

Wildcard and Boolean Search in Elasticsearch

by Anurag Srivastava , Aug 10, 2018, 7:14:40 PM

In my last blog, I have explained basic Elasticsearch queries using which we can create basic search queries. Now in this blog, I will explain advanced search queries using which we can construct more complex queries like boolean queries, wildcard queries, etc. So let's start to create the...

preview image DevOps

Introduction to Elasticsearch

by Anurag Srivastava , Apr 14, 2018, 1:18:05 PM

Next blogs on Elasticsearch of this series:Elasticsearch Installation and Configuration on Ubuntu 14.04...

preview image DevOps

Log analysis with Elastic stack

by Anurag Srivastava , Jan 31, 2018, 6:11:29 AM

A slow application can trigger a series of escalating calls through an IT organization and whenever the application starts giving issues, we need to troubleshoot it and fix it as soon as possible. In the process, our log files are normally among the first places where we go when we start the trouble...

preview image DevOps

Configure Logstash to send MongoDB data into Elasticsearch

by Anurag Srivastava , Mar 9, 2019, 8:20:38 AM

In this blog, I am going to explain how you can push your MongoDB data into Elasticsearch. You may be thinking what is the benefit of sending MongoDB data into Elasticsearch so let me explain to you the scenarios where you may want to push MongoDB data into Elasticsearch.If yo...

preview image Programming

Metrics Aggregation in Elasticsearch

by Anurag Srivastava , Aug 18, 2018, 6:02:20 PM

In my previous blog, I have explained about basic aggregation. Now, let us pick the metrics aggregation and see how we can create these types of aggregations. Metrics aggregation are those aggregation where we apply different types of metrics on fields of Elasticsearch documents like min, ...

preview image Programming

Introduction to Elasticsearch Aggregations

by Anurag Srivastava , Aug 14, 2018, 4:47:56 PM

Aggregations provide us the option to group and extract statistics from our data. aggregations give the insight of our data and can be used for a wide range of problems like we can use Elasticsearch aggregations for creating a recommendation engine through which we can implement the recommendatio...

preview image DevOps

How to create Elasticsearch Cluster

by Anurag Srivastava , Apr 6, 2019, 8:41:41 PM

Many times people ask me the question about configuring an Elasticsearch cluster where they can distribute the load on different servers. There are too many other questions like how to decide on server configuration, which architecture to follow, how many shards to keep, etc, etc. I will explain ...

Top Blogs

Configure SonarQube Scanner with Jenkins

Jun 21, 2018, 4:58:11 AM | Anurag Srivastava

Build and deploy Angular code using Python

Jun 26, 2018, 4:50:18 PM | Anurag Srivastava

Configure Jenkins for Automated Code Deployment

Jun 13, 2018, 3:44:01 PM | Anurag Srivastava

SonarQube installation on Ubuntu

May 12, 2018, 4:47:07 PM | Anurag Srivastava

Execute Commands on Remote Machines using sshpass

Jul 16, 2018, 5:00:02 PM | Anurag Srivastava

Why SonarQube is important for IT projects ?

Apr 24, 2018, 2:52:28 PM | Anurag Srivastava

Analyze your project with SonarQube

Jun 2, 2018, 10:49:54 AM | Anurag Srivastava

Install Jenkins on Ubuntu

May 26, 2018, 6:42:02 PM | Anurag Srivastava

Install Kafka on Ubuntu

Jul 12, 2018, 7:40:51 PM | Anurag Srivastava

Introduction to Elasticsearch Aggregations

Aug 14, 2018, 4:47:56 PM | Anurag Srivastava