CFCONTENT was being used previously, but when a bunch of users start downloading large files, the server starts crashing... Most of the files range between 200-500 MB, some up to 1GB and larger...
----- Original Message ----- From: "Craigsell" <[EMAIL PROTECTED]> To: "CF-Talk" <[email protected]> Sent: Monday, January 21, 2008 4:32 PM Subject: Re: Read large binary file, MX7? > Dave is right --- when in CF use CF! > > Here's a code snippet fron June 19,2003 entry is Chris Cantrell's blog > (he's > an Adobe expert) > http://weblogs.macromedia.com/cantrell/archives/coldfusion/index.cfm > > > <cffile action="readbinary" file="/home/cantrell/Pictures/Corrs2.jpg" > variable="pic"/> > <cfcontent type="image/gif; charset=8859_1"> > <CFSCRIPT> > writeOutput(toString(pic)); > </cfscript> > > Just change the content type to what you need! > > > ----- Original Message ----- > From: "Sarah Geren" <[EMAIL PROTECTED]> > To: "CF-Talk" <[email protected]> > Sent: Monday, January 21, 2008 2:38 PM > Subject: Re: Read large binary file, MX7? > > >> thanks, >> I was actually originally trying to use this piece of code that I found >> using java to read through the object, but I am so not a Java person and >> got >> stuck when I needed to add the following parameter: >> response.setContentLength(arrayLen(byte_arry_here)); >> into the script so that the browser knows how much it is downloading... >> I tried: >> response.setContentLength(arrayLen(instream)); >> response.setContentLength(arrayLen(byteArray)); >> response.setContentLength(arrayLen(s_file)); >> but none worked... So I gave up and decided to use cfffile, until >> realizing >> how large some of the files were. I just wasn't sure if there was >> something >> else I could do with cffile that would make my original code work... >> >> So can someone tell me instead how to call the content length into the >> script below please? >> >> <cfscript> >> function f_Stream(s_file,i_seek,MIME_TYPE,fileName) { >> var i_position = i_seek; >> var i_buffer = 10000; >> var byteClass = createObject("java", "java.lang.Byte"); // >> var byteArray = >> createObject("java","java.lang.reflect.Array").newInstance(byteClass.TYPE, >> i_buffer); >> var context = getPageContext(); >> var response = context.getResponse().getResponse(); >> >> var instream = createObject("java", "java.io.FileInputStream"); >> var outstream = response.getOutputStream(); // take over control of the >> feed to the browser >> if(structKeyexists(arguments,"MIME_TYPE")) >> response.setContentType(MIME_TYPE); >> if(structKeyExists(arguments,"fileName")) >> response.setHeader("content-disposition","attachment; >> filename=#fileName#"); >> byteClass.Init(1); >> instream.init(s_file); >> context.setFlushOutput(false); >> try { >> if(i_seek GT 0) { >> //instream.skip(i_seek); >> //outstream.write(toBinary('RkxWAQEAAAAJAAAACQ==')); // output the >> header bytes >> } >> do { >> i_length = instream.read(byteArray,0,i_buffer); >> if (i_length neq -1) { >> outstream.write(byteArray); >> outstream.flush(); >> } >> } while (i_length neq -1); // keep going until there's nothing left to >> read. >> } >> catch(any excpt) {} >> outstream.flush(); // send any remaining bytes >> response.reset(); // reset the feed to the browser >> outstream.close(); // close the stream to flash >> instream.close(); // close the file stream >> } >> </cfscript> >> <cfset >> f_Stream("#scene_data.mpeg#",0,"video/mpeg","scene_#scene_id#.mpg")> >> >> >> >> ----- Original Message ----- >> From: "Sonny Savage" <[EMAIL PROTECTED]> >> To: "CF-Talk" <[email protected]> >> Sent: Monday, January 21, 2008 3:07 PM >> Subject: Re: Read large binary file, MX7? >> >> >>> Any time I find a bottleneck with CF tags, I generally go looking for a >>> Java >>> solution. These pages may have useful snippets... >>> http://www.coldfusionmuse.com/index.cfm/2006/10/26/Java.directory.list >>> http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html >>> http://www.scripts.com/coldfusion-scripts/file-manipulation-scripts/ >>> >>> On Jan 21, 2008 2:27 PM, Sarah Geren <[EMAIL PROTECTED]> wrote: >>> >>>> Hello, >>>> >>>> I have an application which uses CFFILE to read a binary file into a >>>> variable, and that variable is used to write out the video to the >>>> brower >>>> so >>>> someone can download it... >>>> This code is working great, until the file sizes become too large. It >>>> seems to stop working (and returns a null null or 500 null error) when >>>> the >>>> file sizes go past 200-250MB... >>>> There are some files on this server that are up to 1GB in size that >>>> have >>>> to be downloaded via this script, so it needs to be able to handle >>>> pretty >>>> big files. >>>> >>>> The server is MX7, 4GB Ram, and here are my java args: >>>> >>>> java.args=-server -DJINTEGRA_NATIVE_MODE -DJINTEGRA_PREFETCH_ENUMS >>>> -Xms1024m -Xmx1024m -Dsun.io.useCanonCaches=false -XX:MaxPermSize=512m >>>> -XX:PermSize=64m -Dcoldfusion.rootDir={application.home}/../ - >>>> Dcoldfusion.libPath={application.home}/../lib -XX:+UseConcMarkSweepGC >>>> -XX:+UseParNewGC >>>> -XX:NewSize=48m -Dcoldfusion.classPath={application.home}/../lib/updates >>>> ,{application.home}/../lib,{application.home}/../gateway/lib/,{ >>>> application.home}/../wwwroot/WEB-INF/cfform/jars >>>> >>>> Any help would be appreciated! >>>> Thanks! >>>> >>>> <cffile action="readbinary" file="#scene_data.mpeg#" variable="video"> >>>> <cfheader name="Content-disposition" value="attachment; >>>> filename=scene_#scene_id#.mpg"> >>>> <cfscript> >>>> context = getPageContext(); >>>> context.setFlushOutput(false); >>>> response = context.getResponse().getResponse(); >>>> out = response.getOutputStream(); >>>> response.setContentType("video/mpeg"); >>>> response.setContentLength(arrayLen(video)); >>>> out.write(video); >>>> out.flush(); >>>> response.reset(); >>>> out.close(); >>>> </cfscript> >>>> >>>> >>> >>> >> >> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;160198600;22374440;w Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:297035 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
