Good Morning,
LDAP can handle as much volume as you want - only your hardware will
limit the database.
Regards,
Robert
Michael Bell schrieb:
>
> Nandkishor M wrote:
> >
> > Hi Michael,
> Hi,
>
> > * Is it possible to store the required data in LDAP or some RDBMS
> > is required?
>
> The internal database of a CA is not standardized which means it is at
> every time proprietary. So you can store all the information in a
> LDAP-server, a file or RDBMS.
>
> Normally RDBMSs are used because they support you with transactions
> (especially the ACID-features). So if you store some data into a RDBMS
> and the database answers "ok, I got it" then you can be sure that your
> system doesn't lost the data. LDAP gives you no warranties about the
> durability of the changes which are done. LDAP is only a protocol. E.g.
> OpenLDAP uses mostly DBM-files but in contrast the IBM DB2 UDB database
> understand LDAP via an extension too.
>
> > * How much volume can LDAP database handle?
>
> This is not a question of the protocol this is mostly a question which
> is dependent on the backend - dbm-files, RDBMS ...
>
> Please take in mind that LDAP was developed for many small READ-actions
> and rare WRITE-actions but I dont believe that you have too much data
> for an IBM DB2 :-)
>
> > * If some RDBMS is used, can LDAP server act as a middleware?
>
> Of cause, but be sure that you know what you are doing (recovery from
> errors is a problem). LDAP is very flexible and portable I know ;-D
>
> Before I implement the module OpenCA::DBI I want to implement the
> database interface via LDAP but I decided to write a very well designed
> and portable databaseinterface for RDBMSs because of the problem with
> the disasterrecovery.
>
> So it's a good idea to look into the code of OpenCA::DBI to see the
> problems of such an implementation. The biggest problems is the usage of
> sequencegenerators. The rest is very simple SQL.
>
> If you need more details then simply ask for them ;-D
>
> Regards Michael
> ------------------------------------------------------------------------------
> Michael Bell Email: [EMAIL PROTECTED]
> Humboldt-University of Berlin Email (work):
> [EMAIL PROTECTED]
> Unter den Linden 6 Tel.(work): +49 (0)30-2093 2482
> 10099 Berlin
> Germany [OpenCA Core
> Developer]
>
> http://openca.sourceforge.net
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