While handling Large amounts of data with elasticsearch, you may run out of server capacity or compute power, Forming a Elasticsearch cluster will reduce the load distribution. In Single ElasticSearch Instance end point acts as Data Node + Master Node + Client Node.

Authentication backends allow the ability to change what method checks your users credentials.

For web services, ie Facebook authentication, you don't have access to user data like a password. Without password(not like random string) we can't create a user in django. Facebook connect provides you details of the currently authenticated user.

In our previous blog post we got an idea of what are the things that Google's Page Speed Insights will take into count to give page socre, now in the present blog post we'll get to know what are the techniques we can use to improve the page scrore.

Optical Character Recognition(OCR) is the process of electronically extracting text from images or any documents like PDF and reusing it in a variety of ways such as full text searches. In this blog, we will see, how to use 'Python-tesseract', an OCR tool for python. It will recognize and read the text present in images. It can read all image types - png, jpeg, gif, tiff, bmp etc. It’s widely used to process everything from scanned documents.

Ansible Galaxy is the hub of ansible scripts contributed by users. To follow this article its important that you know about ansible. We have a simple, easy to follow blog about ansible scripting here(https://micropyramid.com/blog/how-to-deploy-django-with-uwsgi-and-nginx-using-ansible-play-book/).

Factory Boy is a fixtures replacement tool. It allows you to use objects customized for the current test, while only declaring the test-specific fields. For testing the Django app, create a root directory named tests. Then create __init__.py, tests.py (to write your tests), factories.py (to write your model factories) in that directory.

Google's Page Speed Insights measures the performance of a page for mobile devices and desktop devices. It fetches the url twice, once with a mobile user-agent, and once with a desktop-user agent.

The PageSpeed Score ranges from 0 to 100 points. A higher score is better and a score of 85 or above indicates that the page is performing well.

Xlsxwriter is a python module through which we can write data to Excel 2007+ XLSX file format. In this blog post we learn to write data, insert images and draw graphs in the excel file.

Shield allows you to protect elastic search data with a username and password. It provides additional functionalities like encryption, role-based access control, IP filtering. It is Official Plugin of Elasticsearch which embeds well with other elastic search products like kibana and log stash. Initially, Shield is available for 30days try after which you can renew the license

Integrating Twitter sign in (OAuth) in Django App, which includes
1. Capturing username via Twitter Login
2. Updating authenticated user current status on twitter(tweets).