shinyapps.io- Failed to load resource: the server responded with a status of 500 (Internal Server Error)

[Laura Hughes]

I have an app that I've uploaded to shinyapps.io, and I've been noticing some instability that I can't trace. The app has a bunch of different reactive inputs which call code to filter, calculate, and plot some data. Occasionally, a certain sequence of selecting these inputs causes the site to freeze and trigger a 500 Internal Server Error.

Strangely enough, when I execute the same commands on a locally-hosted (thru R) version of the app, I don't get an error.

It's a really booger to trace: any suggestions on what may be causing the problem and/or how to debug it better? I'm a javascript novice, so any help would be appreciated.

Full representative error log:

/opt/shiny-server/scripts/shiny-run: line 3:    32 Killed    
/bin/bash --login -c   "$SHINY_EXEC_COMMAND $SHINY_R_PATH $*"

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/bootstrap/css/bootstrap-responsive.min.css

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/bootstrap/css/bootstrap.min.css

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/font-awesome/css/font-awesome.min.css

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/datatables/css/DT_bootstrap.css

[Tareef Kawaf]

Sorry to hear that Laura.  Could you send a link to your application please?

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[Amanda Traud]

I am getting the same error, no errors when my shiny runs locally but errors on the server, my app: https://netmandi.shinyapps.io/GDELTNetwork

Any suggestions would be appreciated!

On Monday, September 29, 2014 10:02:30 PM UTC-4, Tareef Kawaf wrote:

Sorry to hear that Laura.  Could you send a link to your application please?

On Monday, September 29, 2014, Laura Hughes <laura.d...@gmail.com> wrote:

I have an app that I've uploaded to shinyapps.io, and I've been noticing some instability that I can't trace. The app has a bunch of different reactive inputs which call code to filter, calculate, and plot some data. Occasionally, a certain sequence of selecting these inputs causes the site to freeze and trigger a 500 Internal Server Error.

Strangely enough, when I execute the same commands on a locally-hosted (thru R) version of the app, I don't get an error.

It's a really booger to trace: any suggestions on what may be causing the problem and/or how to debug it better? I'm a javascript novice, so any help would be appreciated.

Full representative error log:

/opt/shiny-server/scripts/shiny-run: line 3:    32 Killed    
/bin/bash --login -c   "$SHINY_EXEC_COMMAND $SHINY_R_PATH $*"

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/bootstrap/css/bootstrap-responsive.min.css

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/bootstrap/css/bootstrap.min.css

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/font-awesome/css/font-awesome.min.css

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 
<<site@shinyapps.io>>/shared/datatables/css/DT_bootstrap.css

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[Amanda Traud]

I know what happened, the names of a few of the javascript files changed with an update to the Shiny library.  Therefore the app was trying to load a javascript file that was no longer there.

Grrrrr.

[Amanda Traud]

I just changed the source call in my index.html and it worked fine.

[Laura Hughes]

The problem in my case ended up being that I had run out of system memory, which can be solved by upping the allowed memory: shinyapps::configureApp("APPNAME", size="xlarge")

where "APPNAME" is the name of the app. More info about memory is here:http://shiny.rstudio.com/articles/shinyapps.html

Thanks to the folks at RStudio for helping diagnose.