RE: Antw: accesslog purge starves kerberos kdc authentications

["Paul B. Henson" <henson@acm.org>]

> From: Dameon Wagner
> Sent: Thursday, November 05, 2015 3:01 AM
> 
> Just a simple question, is /var/lib/openldap-data/accesslog on the
> same physical disk as the rest of your directory storage?  I note from
> your initial thread on the kerberos list that there's small io spike
> at the same time, so it may be beneficial to have the accesslog on
> different spindles if possible.

Yes, it is. The system is a basic 1U server with a hardware RAID card and
mirrored disks. I don't have any other spindles 8-/. One of my colleagues is
giving me the big "I told you so", as he advocated upgrading to the hardware
RAID card with a battery backed write cache which might have prevented this
issue. The rest of us didn't think the extra expenditure was worth it for a
Kerberos server which typically doesn't have very high performance
requirements <sigh>. I guess I'm going to try purging the accesslog more
frequently and seeing if that reduces the individual purge load to a low
enough level that it doesn't impact service response.

Thanks.