Dear,

After some rigorous checks & debug found the local FS was getting exhausted due to huge amount of logs written by slapd daemon.

Unfortunately, this FS is system mounted locally (sda2) & hence couldn't be expanded further. As a workaround, has restricted log quantity to 6000/10 seconds via rsyslog rate-limiting feature.

Ulrich,

Will check onto system for any slow local disk problem persists.. Many thanks for your kind & valuable suggestion.

----

Thanks & Kind Regards,

Saurabh LAHOTI.

On Thu, 28 Jun 2018 at 09:17, Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de> wrote:

>>> Saurabh Lahoti <saurabh.astronomy@gmail.com> schrieb am 27.06.2018 um 23:44 in
Nachricht
<CAB5-MqpjqiX-PLYmV64fj5o-EYA4dtC4+w0U8d=7NL+ndeByxg@mail.gmail.com>:
> Dear,
>
> We've started observing strange & peculiar performance behavior for slapd
> instances. While ldap bind response is more than 1.5 second on one server
> then on another it's just 0.006 seconds.
>
> Both the servers have similar OS, system resources & ldap version.
>
> OS: RHEL 6.9
> LDAP: 2.4.44
> Backend: bdb
>
> Could you please suggest some probable causes..?

Could it be a slow local disk?

>
>
> Thanks & Kind Regards,
> Saurabh Lahoti.