[horde] scripts and memory consumption

[Jan Schneider]

Zitat von LALOT Dominique <dom.lalot at gmail.com>:

> Sorry to post another thread on that subject. I never receive my posts..(No
> I haven't changed my postman prefs..)
>
> Well,
>
> running  horde/scripts/upgrades/migrate_user_categories.php for 750 accounts
> leads to 64Mo
>
> So I changed the loop for something very "light"
>
> foreach ($users as $user) {
>     echo 'Migrating prefs for ' . $cli->bold($user);
>
>     // Set $user as the current user.
>     $auth->setAuth($user, array(), '');
>     $cli->writeln();
>     continue;
> ...
> }
>
> What can we say, is that $auth->setAuth is just eating memory. In an http
> request, it's not a problem, but inside a scrit, it is!
> As I have 20000 accounts, you can compute how much memory we need.
>
> And as it's the same loop in alarms.php and reminders.php running every X
> minutes..
> What could be the problem? I have no group driver in that test
>
> Horde is 3.3.4, php 5.2.6
>
> Is it a php Garbage Collector problem or cyclic references. How can we avoid
> this?

If we knew the answer we would fix it. Since this is only a problem  
with very large installations and long running scripts, do we really  
expect too much that people that actually experience this problem  
track this down?

kronolith/lib/Kronolith.php and nag/lib/Nag.php explicitely mention a  
memory leak that could have the same root. Start looking there.
Jan.

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