Re: slapd 2.3.19 freezes up

["matthew sporleder" <msporleder@gmail.com>]

Try using BDB 4.2.52 or 4.4.
If you search these lists for BDB 4.3,  you'll see similar experinces
being reported.

On 2/25/06, Krishna Sivaramapuram <krishna@everyone.net> wrote:
> I have a pretty serious issue in my environment... I've around 6 million
> nodes in my ldap tree... And this server is running on a box with the
> following linux configuration...
>
> Cent0S 4.0 (basically redhat enterprise 4.0)
> upgraded to a 2.6.13.2 smp kernel
>
> We are using Openldap 2.3.19 with BDB 4.3.29.
>
> slapd keeps running for more than 24 hours without any issue...
> Everything seems very normal... But suddenly something happens and
> immediately the ldap server starts behaving very wierdly... The CPU
> usage for slapd hits 99.9% and it does not do any I/O at all... All
> parameters from iostat are just 0... So, it becomes completely CPU bound
> and pretty soon connections start piling up and eventually it starts
> refusing connections and at this point the server freezes up...
>
> We did a strace and found that slapd was stuck in a futex... Has anyone
> seen this behaviour before...
>
> The same thing happens when I do a query for all the nodes in the server
> too... Has anyone seen this kind of a behaviour?
>
> Krish
>