Imagemagick conversion failed for images of larger file dimension to jp2(jp2000) with AWS lambda Node.js

AWS lambda Imagemagick convert failed for images of larger file dimension to jp2(jp2000). For images of size less then 60MB, conversion works fine, but above 60MB, I am getting 0KB file. I am using Imagemagick with child_process spawning for image conversion.

Using AWS lambda with Node.js 6.1, 1.5GB memory and 300 second timeout

I am not able to identify why the following code is failing for larger dimension images. Is this a buffer limitation of the child_process?

 var fs = require('fs'); var childproc= require('child_process'); var child = childproc.spawn('convert', [inputfile,outputFile,]); var file = fs.createWriteStream(tempDest, {encoding: 'binary'}); child.stdout.pipe(file); child.on('exit', function(){ file.end();console.log("file outputed");wcallback(null);}); child.on('error', function(err){ file.end();console.log(err);wcallback(err);}); 

I tried Imagemgick node.js wrapper package "npm Imagemagick", also. It was giving an error for the same conversion for larger file. The following is the error:

{ "errorMessage" : "Command failed: ", "errorType" : "Error", "stackTrace" : ["ChildProcess.<anonymous> (/var/task/node_modules/imagemagick/imagemagick.js:92:15)", "emitTwo (events.js:106:13)", "ChildProcess.emit (events.js:191:7)", "maybeClose (internal/child_process.js:886:16)", "Socket.<anonymous> (internal/child_process.js:342:11)", "emitOne (events.js:96:13)", "Socket.emit (events.js:188:7)", "Pipe._handle.close [as _onclose] (net.js:497:12)"]}