If you are facing problems like above, timeout may be problem of your network( domain name resolution). Possible solution is to update the network dns . It should be fast dns like Google DNS or Cloudflare DNS
Google DNS – 126.96.36.199,188.8.131.52 Cloudflare DNS – 184.108.40.206
With low latency network and responsive dns, this problem will be resolve as resolved in above image.
This post is also answer to how to install IRkernal for jupyter notebook
Problem :FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning. ‘SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and ‘
Webpage is not 100% data unlike other data only formats ( excel sheets, json , xml , csv ) etc . It has other goal – present information in visual manner, therefore data is mixed with lot of unwanted content( tags ).
Each and every webpage have some unique design guidelines to present information and carry data. Crawler are not so smart to fetch all information from webpage. Beside fetching data, it is not easy to catagorize and index data correctly all the time. Therefore, there must be some unique method to carry data , without worrying about the html of webpage.
If your facing problem in keep running shiny server for long time , I have a solution .
Shiny server need server restart
Shiny server not responding after sometime
Increase the RAM size Ping server at regular interval Increase app_idle_timeout in Shiny Server Conf Use systemd to automatically restart shiny server
How to automatically ping your server at regular interval
Your can add a cronjob to curl the index page of your application
Edit the crontask using crontab -e . Schedule to run every minute * * * * * curl url_to_your_shiny_application
How to increase app_idle_timeout On unix system, your can find the configuration file for shiny server at /etc/shiny-server directory
In case of any problem, please ask in comment and solution will be updated
You can start,stop,restart and check for status of shiny-server through these easy commands
sudo systemctl start shiny-server #to start it
sudo systemctl stop shiny-server # to stop it
sudo systemctl restart shiny-server # to restart
sudo systemctl status shiny-server # to know status of shiny-server
As a search engine, Google/Bing/Yahoo try to serve the best response to the user. Intent is important factor and getting local/relevent result is neccessary.
CTR is important because it reflect the usefulness of site. In more depth, search engine provide personalized results , therefore it is always better chance to rank higher for specific set of users ( for non bounced user). Google chrome is most used browser world wide and it gather statistics about site usage and behaviour. Better ctr and more usage of site will definitely contribute quality ranking score.
I advise to make user aquistion process simple and effective. Ranking will be improve definitely.
Nginx define itself as open-source, high-performance HTTP server and reverse proxy engine. It is simple to configure proxy server, effective load balancer. Nginx is super easy to configure. Multiple types of proxy configuration is possible – round robin, least connected , ip bound , fail over connection, path based.
It is easy to host a rails app on mail domain and wordpress on /blog path. Run an analytic engine using R (shiny apps) and do some smart system tasks using python backend.
nginx is free and open source . It is much robust than apache and first choice for proxy. I love it when need to operate a bunch of service varied by different type of services .