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Snapshot and Restore Elasticsearch Indices

by Anurag Srivastava , Sep 16, 2019, 5:55:06 AM

In this blog, I am going to explain how we can take a snap...

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htop: An Interactive Process Viewer

by Anurag Srivastava , Oct 13, 2018, 8:49:59 PM

htop is an interactive version of top command which we use to get the process listing. top command is quite popular and most of the users run this command to get the running process details and their impact on system performance. This command is quite useful in order to know th...

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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, ...

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Configure Logstash to push MySQL data into Elasticsearch

by Anurag Srivastava , Feb 9, 2019, 12:06:18 PM

I am taking the example of a bqstack website which is build using MySQL database. So basically what I am goin...

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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...

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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 ...

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Why we feel objects lighter when submerged in water, What is Archimedes' Principle??

by jitender yadav , Feb 6, 2018, 4:00:36 AM

Do you ever think why an object feels lighter when submerged in water??The answer is here:-                when we put any object in water it displaces water and displaced water volume  is equal to volume of body submerged in water....

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How to delete a single file OR all files in folder OR a folder in python

by jitender yadav , Feb 2, 2018, 7:29:35 PM

First how to remove a single file in python from a directory/folder Below is the code and explanation for removing a single file in python:               import os...

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How to count number of words in a HTML string and find Read time in Python 3

by jitender yadav , Jun 30, 2018, 12:07:47 PM

In this blog we are going to learn how to count number of words in a string with HTML tags and read-time of that string in Python.While writing blogs or articles in html text editor the editor gives a string with embedded  with HTML ...

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Do you hear about "ELECTRON GUN"? Here we talk about the same.

by jitender yadav , Feb 8, 2018, 6:19:46 AM

What is an Electron Gun??When a piece of metal is heated, electrons escape from its surface. These free electrons can be accelerated in a vacuum, producing a beam. The hot metal surface and the accelerating plates are sometimes called an ‘electron gun’....

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