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POWhy is my googleVis chart causing a "R encountered a fatal error" when trying to upload 5+MB files in R Shiny?
 

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  1. POWhy is my googleVis chart causing a "R encountered a fatal error" when trying to upload 5+MB files in R Shiny?
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    <p>I am making an app using R Shiny. I put this command at the top of my program:</p> <pre><code>options(shiny.maxRequestSize=-1) </code></pre> <p>Apparently this command allows the user to upload any file size (default is 5 MB limit). I've also tried:</p> <pre><code>options(shiny.maxRequestSize=30*1024^2) </code></pre> <p>which I believe is a 30 MB limit.</p> <p>However, whenever I try to upload a file larger than 5 MB, R crashes and I get a "R encountered a fatal error" message about a minute after trying to load the file.</p> <p>EDIT: Further testing has shown that the gVis table I am outputting is causing the crash. Why might this be?</p> <p>My code works fine for any file under 5 MB.</p> <p>Some code:</p> <p>ui.R</p> <pre><code>dataset &lt;- list('Upload a file'=c(1)) shinyUI(pageWithSidebar( sidebarPanel( fileInput('file', 'Data file'), radioButtons('format', 'Format', c('CSV', 'TSV')), conditionalPanel(condition = "input.tsp == 'sort'", checkboxInput(inputId = "pageable", label = "Make table pageable"), conditionalPanel("input.pageable==true", numericInput(inputId = "pagesize", label = "Entries per page",10)) ), conditionalPanel(condition = "input.tsp == 'multi' ", selectInput('x', 'X', names(dataset)), selectInput('y', 'Y', names(dataset), multiple=T), selectInput('color', 'Color', c('None', names(dataset))), checkboxInput('jitter', 'Jitter'), checkboxInput('smooth', 'Smooth'), selectInput('facet_row', 'Facet Row', c(None='.', names(dataset))), selectInput('facet_col', 'Facet Column', c(None='.', names(dataset))) ) ), mainPanel( tabsetPanel( tabPanel("Sortable Table", htmlOutput("gvisTable"),value="sort"), tabPanel("Multiplot", plotOutput('plotMulti'), value="multi"), id="tsp" #id of tab ) ) )) </code></pre> <p>server.R</p> <pre><code>library(reshape2) library(googleVis) library(ggplot2) options(shiny.maxRequestSize=-1) shinyServer(function(input, output, session) { #----------------------------------------------------------- # Dataview Tab Inputs #----------------------------------------------------------- data &lt;- reactive({ if (is.null(input$file)) return(NULL) else if (identical(input$format, 'CSV')) return(read.csv(input$file$datapath)) else return(read.delim(input$file$datapath)) }) observe({ df &lt;- data() str(names(df)) if (!is.null(df)) { updateSelectInput(session, 'x', choices = names(df)) updateSelectInput(session, 'y', choices = names(df)) updateSelectInput(session, 'color', choices = c('None', names(df))) updateSelectInput(session, 'facet_row', choices = c(None='.', names(df))) updateSelectInput(session, 'facet_col', choices = c(None='.', names(df))) } }) myOptions &lt;- reactive({ list( page=ifelse(input$pageable==TRUE,'enable','disable'), pageSize=input$pagesize, width=1000 ) }) output$gvisTable &lt;- renderGvis( { if (is.null(data())) return(NULL) gvisTable(data(), options=myOptions()) }) #----------------------------------------------------------- # Graphs #----------------------------------------------------------- output$plotMulti &lt;- renderPlot({ if (is.null(data())) return(NULL) temp &lt;- input$x p &lt;- ggplot(data(), aes_string(x=temp, y=input$y), environment = environment()) p &lt;- p + geom_bar() if (input$smooth) p &lt;- p + geom_smooth() if (input$color != 'None') p &lt;- p + aes_string(color=input$color) facets &lt;- paste(input$facet_row, '~', input$facet_col) if (facets != '. ~ .') p &lt;- p + facet_grid(facets) if (input$jitter) p &lt;- p + geom_jitter() multiplot(p, p) }) }) </code></pre>
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    1. PTQuestion
    1. USjeffrey
    1. USjeffrey
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    1. COcan you add some code, i used the options(shiny.maxRequestSize=-1) and it worked fine
      singulars
      1. POWhy is my googleVis chart causing a "R encountered a fatal error" when trying to upload 5+MB files in R Shiny?
      1. USeliavs
    2. COAdded some sample code, could it be my gVis table trying to render all the data that's causing the problem? The table only displays 15 rows per page though...
      singulars
      1. POWhy is my googleVis chart causing a "R encountered a fatal error" when trying to upload 5+MB files in R Shiny?
      1. USjeffrey
    3. COOn further thought, I believe it is the gvis table that is causing the problem. Any idea why gvis cannot handle over 5MB file uploads?
      singulars
      1. POWhy is my googleVis chart causing a "R encountered a fatal error" when trying to upload 5+MB files in R Shiny?
      1. USjeffrey
 

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