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I've recently learned that R Shiny programs impose a maximum size restriction for file uploads by default (I don't know what the size is exactly, but I'm guessing it's 5,000 KB). I'd like to remove this restriction. How can I do so, and what is there a general rule of thumb for the size of user uploads?
In addition, this is on another note, but related: how can I save fie inputs by the user BY session? For example, there would be a file prompt in the application, in which the user can upload a file. Then, when the user chooses the file to display, he can pick among the files he has uploaded. If he exits the session, the list clears.
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Open the file in any text editor and add the following code. @ini_set( 'upload_max_size' , '20M' ); @ini_set( 'post_max_size', '13M'); @ini_set( 'memory_limit', '15M' ); Save your changes, and it should increase your file upload size.
Under most 64-bit versions of Windows the limit for a 32-bit build of R is 4Gb: for the oldest ones it is 2Gb. The limit for a 64-bit build of R (imposed by the OS) is 8Tb.
Quoting Joe Cheng from this shiny-discuss post
By default, Shiny limits file uploads to 5MB per file. You can modify this limit by using the shiny.maxRequestSize option. For example, adding options(shiny.maxRequestSize=30*1024^2) to the top of server.R would increase the limit to 30MB.
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