[Openinteract-dev] Memory Leak in CommonHandler?

[<And...@Be...>]

Hey List !

We use the OpenInteract::CommonHandler quite a lot, because it is so =
easy to
use. But: we currently suspect there is a lurking general mem leak in =
there.

What we did:
- to find out, which handler is suspicous after we saw a major mem leak
through looking at the httpd processes, we did the following
- steal idea from Apache::Leak and fold this into this mod_perl =
handler:

--- snip ----
package Apache::MemLogger;

use strict;
use DynaLoader ();
use GTop();


sub handler {
    my $r =3D shift;
    my $uri =3D $r->uri;
    my $gtop =3D GTop->new;
    my $proc =3D $gtop->proc_mem($$);
    my $size_before =3D $gtop->proc_mem($$)->size();

    $r->push_handlers(PerlLogHandler =3D> sub {
        my $size_after =3D $gtop->proc_mem($$)->size();
        my $diff =3D $size_after - $size_before;
        warn "MEM_LOG:$$:$uri:$size_before:$size_after:$diff\n";

    });
    0;
}

1;
__END__

- then activate this in the httpd.conf of the backend oi apache server =
like
this:
PerlModule Apache::MemLogger;
PerlInitHandler Apache::MemLogger

- now you can grep for MEM_LOG in the error_log_modperl and look for
interesting things e.g. with this shell command:
grep MEM_ error_log_modperl|perl -F: -ane 'print "$F[2],$F[5]\n" if =
$F[5] >
6567680;'

Doing this, we found that the search and show methods ( at least ) =
appear to
have a mem leak in them. Since we in most cases really use the basic
"Common" method, we suspect there might be a bug.

Could please anyone try this out to find this problem ?

Thanks and cheers,

Andreas Nolte
Leitung IT
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and...@be...
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