Re: [Xen-users] Xen, LDAP and Berkeley DB

[Diego Alvarez <diego.alvarez@xxxxxxxxxxxx>]

On Tue, May 30, 2006 at 12:01:51PM +0200, jsiepkes@xxxxxxxxx wrote:
> Hi!
> 
> I'm currently in the process of evaluating Xen. I've made a test setup
> with Debian Sarge as dom0 and a couple of domu's also with debian sarge.
> The purpose of the setup is server consolidation, which Xen does a great
> job with from what I've read (And experienced so far :) ). 
> 
> One of the things I would like to run in a domU is an LDAP server.
> However it has come to my attention that there are some troubles with
> BDB, OpenLDAP and Xen. Some people are advising against using an LDAP
> server in an Xen domu
> (http://www.openldap.org/lists/openldap-software/200603/msg00216.html). 
> 
> I've installed OpenLDAP in a domU and ran SLAMD against it to check its
> performance. The performance seems OK at first sight.
> 
> >From what I understand Xen's inability to support Native POSIX Threading
> is the root cause for the problems with programs like BDB, OpenLDAP and
> Fedora Directory Server. Is there anybody who can shed some more light
> on this for me ? Or beter, somebody who runs a live LDAP server inside a
> domU ?
 
I run OpenLDAP (from Debian 3.1) with bdb backend in a Xen 3.0.2 (from
Sid) dumU (with Sarge) without any problem. But I have to say that it is
for a _really_ small system.
I do not know how would it behave on a large system.

Regards,
Diego.

> Thanks in advance,
> 
> Jasper Siepkes
> 
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