[Kolab-devel] make kolabd more robust

[Gunnar Wrobel]

Hi Alain,

Quoting Alain Spineux <aspineux at gmail.com>:

> The "kolabDeleteflag" avoid kolabd to forget to delete a user.
> But for the user creation, we have no guaranty no users will not be
> forgotten by kolabd !
> The current system is based only on a _transation less_ ldap
> replication mechanism !
> This means user could be forgotten !

Do you have a specific scenario for this? This would of course be a  
bug and should get fixed.

The idea within kolabd is that new users are stored in a local user db  
once they are created. If they are not in there the account will be  
created. So I wouldn't say it is "transaction less". It does not store  
the information in LDAP though - that is correct. The question would  
be if that would really be necessary.

The deletion flag exists as all servers need to purge the entry. But  
for creation only one server needs to create the account. So the local  
db solution should be okay.

But I admit the code is not 100% clean and I could imagine there are  
situations where user creation could fail.

It would be good to clarify such a scenario though and put it in an  
issue in the tracker.

Cheers,

Gunnar

>
> We could have a kolabNewflag that will help kolabd to create mailbox
> of these "fogotten" users !
> When a user is created in IMAP, kolabd could simply remove the
> kolabNewflag key. The key was created
> a user creation by the kolabgui.
>
> When kolabd start or is waked up by slurp (or LDAP sync mechanism),
> then kolabd could query for
> kolabDeleteflag or kolabNewflag and update the users accordingly.
>
>
> Maybe the inverse idea could be used too, kolabd search for user not
> having the kolabCreatedflag, create the mailbox
> and then add the kolabCreatedflag key to the ldp record !
> That way the webgui dont need to be chnaged and only kolabd has to
> manage the kolabCreatedflag.
>
>
> Regards
>
>
> --
> Alain Spineux
> aspineux gmail com
> May the sources be with you
>
> _______________________________________________
> Kolab-devel mailing list
> Kolab-devel at kolab.org
> https://kolab.org/mailman/listinfo/kolab-devel
>



-- 
______ http://kdab.com _______________ http://kolab-konsortium.com _

p at rdus Kolab work is funded in part by KDAB and the Kolab Konsortium

____ http://www.pardus.de _________________ http://gunnarwrobel.de _
E-mail : p at rdus.de                                 Dr. Gunnar Wrobel
Tel.   : +49 700 6245 0000                          Bundesstrasse 29
Fax    : +49 721 1513 52322                          D-20146 Hamburg
--------------------------------------------------------------------
    >> Mail at ease - Rent a kolab groupware server at p at rdus <<
--------------------------------------------------------------------


----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Digitale PGP-Unterschrift
URL: <http://lists.kolab.org/pipermail/devel/attachments/20081015/9434c52b/attachment.sig>