| Logstash - receives, process and ship data | |
| - manipulate/enrich/process data | |
| Pipeline => input(receives events from various source) + (filter) + output(stash) |
| 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://gist.github.com/WisdomFusion/a60285c8f7cd9faf06ef8c9244133219 |
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;
| 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/ |
| https://opensource.com/article/17/7/automate-sysadmin-ansible |
| # 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 |
| 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 |