Disconnected from Server in shinyapps, but local's working

Question

I deployed my Shiny code to shinyapps.io successful. My data has little much rows (over 190,000), these data\'s can display in my local PC but shinyapps cannot with \'Discon

Answer 1

I had faced a similar issue, adding a few pointers which might help someone.

Load you application and try analysing the requests from the browser network logs section.

On doing so i noticed two of my requests from the Shiny app were pretty heavy and taking a long while ~25-30s. After a while connection would get terminated with the error as below:

{"type":"close","code":3000,"reason":"No response from heartbeat","wasClean":true}

Shiny has few params related to heartbeat.

http://docs.rstudio.com/shiny-server/#sockjs_heartbeat_delay

Setting them is what helped me. Increase the value of 'sockjs_heartbeat_delay' in shiny-server.conf to a large number and the disconnect issue was not seen anymore.