Getting problem while downloading large file(1.9GB)

sbhalgat has asked for the wisdom of the Perl Monks concerning the following question:

Hello,
I am downloading large file(file size more than1.9GB)
I am using Perl, Mason.
When I click to file to download, browser(Firefox) hangs.
I am not able to find what is the exact problem.
Tried to flush the buffer using $m->flush_buffer.but didn’t help.
Can you please help me to find out why it is not working?

Please find the below code which I written

my $file = "$file_name";
if (-e $file) {
local *FH;
open FH, $file or die "Unable to open file";
if (-B $file){
binmode FH;
}
$r->content_type('application/octet-stream');
$r->set_content_length(-s FH);
$r->headers_out->add("Content-Disposition" => qq(attachment; filename=
+"$display_filename"));
my $buffer;
$m->autoflush(1);
while (sysread(FH, $buffer, 262144)) {
$m->out($buffer);
}
$m->autoflush(0);
close FH;
return;
[download]

Comment on Getting problem while downloading large file(1.9GB) Download Code

Replies are listed 'Best First'.
Re: Getting problem while downloading large file(1.9GB) by CountZero (Bishop) on Jan 16, 2012 at 06:49 UTC
What does the error-log of the server say? CountZero A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James	[reply]
Re^2: Getting problem while downloading large file(1.9GB) by sbhalgat (Initiate) on Jan 16, 2012 at 08:22 UTC
Error log on server says Out of memory! Callback called exit.	[reply]
Re^3: Getting problem while downloading large file(1.9GB) by CountZero (Bishop) on Jan 16, 2012 at 11:14 UTC
Well, that settles it then. You now have two options: Get more memory in the server; or Re-write your application so you ~~do not need to have the whole~~have less of the file in memory at the same time. Update: edited the above to make it more clear. CountZero A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James	[reply]
Re^4: Getting problem while downloading large file(1.9GB) by Anonymous Monk on Jan 16, 2012 at 12:02 UTC
Re^5: Getting problem while downloading large file(1.9GB) by CountZero (Bishop) on Jan 16, 2012 at 13:30 UTC
Some notes below your chosen depth have not been shown here
Re^3: Getting problem while downloading large file(1.9GB) by Anonymous Monk on Jan 16, 2012 at 10:52 UTC
So what phase are you executing that code in? http://cpansearch.perl.org/src/DROLSKY/HTML-Mason-1.47/Changes `- $m->flush_buffer is now ignored when inside $m->scomp or $m->cont +ent. Patch by FrÃ©dÃ©ric BriÃ¨re, with extra tests from Ruslan Zakirov. RT #389 +24.` [download]	[reply] [d/l]
Re: Getting problem while downloading large file(1.9GB) by Anonymous Monk on Jan 16, 2012 at 07:01 UTC
Please find the below code which I written yeah, an out-of-context code fragment just won't do :) the problem is probably in the other parts not shown ( config? %flags? `inherit => undef` ? ) you might be able to glean some insight from Photo Galleries with Mason and Imager - Perl.com / http://search.cpan.org/dist/faceplant/MANIFEST / http://cpansearch.perl.org/src/RHIZO/faceplant-1.2/src/images/dhandler	[reply] [d/l]
Re: Getting problem while downloading large file(1.9GB) by pvaldes (Chaplain) on Jan 16, 2012 at 14:25 UTC
You can try with wget and see if you have the same problem	[reply]