Expireover: "Can't expire ..."

[Toon van der Pas]

Hi,

I'm consequently getting messages like the ones below during the
nightly expire run:

Expire messages:
expireover start Mon Dec 19 03:05:14 CET 2005: ( -z/var/log/news/expire.rm -Z/var/log/news/expire.lowmark)
expireover: can't expire at.freizeit.nonsens
expireover: can't expire clari.biz.mergers.releases
expireover: can't expire comp.databases.filemaker
expireover: can't expire nl.reizen
expireover: can't expire pl.soc.wegetarianizm
    Article lines processed  9255718
    Articles dropped          204067
    Overview index dropped    222528
expireover end Mon Dec 19 11:57:29 CET 2005

The rest of the expire output looks normal.
Do the above error messages mean that my history database or overview
database is corrupt? The INN server is configured with a traditional
newsspool and has the following options in inn.conf:

ovmethod:               buffindexed
hismethod:              hisv6
enableoverview:         true
groupbaseexpiry:        true

The buffindexed overview files have been full twice, at which point I
created more files. The file buffindexed.conf currently looks like
this:

0:/var/spool/news/overview/ovbuff_00:1048576
1:/var/spool/news/overview/ovbuff_01:1048576
2:/var/spool/news/overview/ovbuff_02:1048576
3:/var/spool/news/overview/ovbuff_03:1048576
4:/var/spool/news/overview/ovbuff_04:1048576
5:/var/spool/news/overview/ovbuff_05:1048576
6:/var/spool/news/overview/ovbuff_06:1048576
7:/var/spool/news/overview/ovbuff_07:1048576

Thanks for any help.
Regards,
Toon.