Re: BDB 4.2.52 VS BDB 4.4.20 Showdown

[Quanah Gibson-Mount <quanah@symas.com>]

--On Saturday, January 28, 2006 7:57 PM -0800 Quanah Gibson-Mount 
<quanah@symas.com> wrote:

> Conclusion:
> ---------------------------------------------------------------------
>
> It looks like BDB 4.4 could become a major boon to OpenLDAP.  It is
> substantially faster than BDB 4.2.52 for write operations occurring
> inside an existing database.  On the downside, it is markedly slower for
> importing a database via slapadd.  It also is slightly slower than 4.2.52
> for READ operations, but this slowness is very marginal, especially
> compared to the gain in WRITE speed.
>
> HOWEVER, there apparently remain some issues either in BDB 4.4.20 or
> between BDB 4.4 and OpenLDAP that make it unstable and not fit for use at
> this time with OpenLDAP.


A follow up here:

I was unable to reproduce the issue with BDB 4.4.20 blowing up under 
Solaris or an identical linux box, so I believe there was an issue specific 
to the system I was using rather than BDB 4.4.20.  Given that, I would note 
that BDB 4.4.20 may be a better choice for those people in a high-write 
environment who are willing to sacrifice a small amount of READ speed for 
the gained WRITE throughput, with the caveat that BDB 4.4.20 is still 
largely untested for long-term durability.

--Quanah

--
Quanah Gibson-Mount
Product Engineer
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>