Open Source Document Management System | OpenKM

Hi,
I installed OpenKM using the default repository.xml configuration , and after the import of 50GB of files, it takes about 1 hour to give a single write access, delete or otherwise. In essence, the system has become almost unusable, and I think that I must spend 1 week to give the permission to each user ...

The system is based on Ubuntu 10.10 server, HP DL 120 G6, dual core processor, 4Gb ram, 2 SATA 160Gb raid 1.

could you please tell me if there is a solution?
thanks

First we might understanding the problem.

1- How much folders do you have in okm:root ?
2- Do you've got so much grants differences between inicial okm:root/some folder grants to subfolders ?

When you said "it takes about 1 hour to give a single write access", could you explain exactly what you've done, and how much subfolders and documents have where you're appling it ?