> On Aug 3, 2017, at 10:59 , Chris Ridd <chrisr...@mac.com> wrote:
> 
> I had a requirement to extract 30+ million entries from an ldap server, and 
> naively thought that using callbacks would be useful.
> 
> While they are useful in getting me each result quickly, I didn't realise 
> that Search still captures each result in self. So after reading several 
> million entries Linux's oom killer kindly killed a) the ldap server and then 
> b) my script to try and get back some memory!
> 
> I ended up patching Search.pm to avoid capturing each result when using 
> callbacks. Is there a better way to do this?

Did you call  $mesg->pop_entry; in you callback. See 
http://search.cpan.org/~marschap/perl-ldap-0.65/lib/Net/LDAP/FAQ.pod#USING_THE_CALLBACK_SUBROUTINE_APPROACH
 
<http://search.cpan.org/~marschap/perl-ldap-0.65/lib/Net/LDAP/FAQ.pod#USING_THE_CALLBACK_SUBROUTINE_APPROACH>
  for an example

Graham.

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