[horde] consequences of setting the datatree driver to null

[Ibon Igartua]

  Hi there,

  We have recently deployed Horde Groupware Webmail Edition 1.0.4.

  Since the very first day the application was online we realized a very 
slow performance. This was due to the MySQL server. There were plenty of 
queries to the datatree table. We tried to tune the database server, we 
gave more resources to it ... but it was imposible ... it was almost on 
fire every time.

  After Googling a little bit we decided to deactivate the datatree 
driver in the conf.php file:

//$conf['datatree']['params']['driverconfig'] = 'horde';
$conf['datatree']['driver'] = 'null';

  After that, everything is being fine.

  I believe this driver is needed in order to share objects and to 
manage groups ¿? ... but we're not really sure. Are we missing something 
else setting the driver to null?

thanks for your help,
-- 
-------------------------------
     Ibon Igartua Libarona
C.I.D.I.R. / I.I.S.I.G. Bizkaia
  Euskal Herriko Unibertsitatea
     Tel. +34 94 601 3426
-------------------------------