Tapan Sharma Tapan

In Rails 4 it is useful to have a 'page loading' indicator when a user clicks a link. This is a simple way to accomplish that without external libraries. Tested on Rails 4 using TurboLinks.

Great Link for Spinning Loader gifs: http://loading.io/

On CSS Page:
.modal {
    display:    none;
 position: fixed;

	Analyzer
	1. character filter => add, remove or transform the text i.e strip html tag from the document.
	2. tokenizer => split text into terms.
	3. token filter => consists of zero or more filters like uppercase, synonyms, stop words etc.

	Analyze API

	POST _analyze
	{
	"tokenizer": "standard",

	https://code.tutsplus.com/articles/an-introduction-to-slim-templates--cms-26028
	https://code.tutsplus.com/articles/ruby-templating-with-slim-part-2--cms-26094
	https://richonrails.com/articles/the-slim-template-engine
	http://eggbox.fantomfactory.org/pods/afSlim/doc/

	# check resque info from console
	Resque.info

	# start redis server
	redis-server

	# start workers
	VVERBOSE=1 QUEUE=queue_name rails environment resque:work

	#

	#add non-root user with root privileges

	sudo adduser linux
	sudo passwd linux
	linuxpasswd
	sudo visudo
	linux ALL=(ALL) ALL

	#Nginx

	Installation
	https://teradata.github.io/presto/docs/141t/server-installation.html
	http://teradata.github.io/presto/docs/127t/installation/installation-ambari.html

	Adding public key to clusters
	https://teradata.github.io/presto/docs/141t/installation/presto-admin/ssh-configuration.html#ssh-configuration-label

	Reference
	http://teradata.github.io/presto/docs/127t/installation/installation-ambari.html
	https://teradata.github.io/presto/docs/current/getting-started.html

	Logstash - receives, process and ship data
	- manipulate/enrich/process data
	Pipeline => input(receives events from various source) + (filter) + output(stash)

	https://www.cyberciti.biz/faq/how-do-i-rotate-log-files/
	http://www.linuxcommand.org/man_pages/logrotate8.html
	https://gorails.com/guides/rotating-rails-production-logs-with-logrotate

	Test new added logrotation policy
	logrotate -vf /etc/logrotate.d/custom