Rebuilding cf_lastseen.db

[Chip Seraphine]

So I rebuilt my cfengine with BerkeleyDB 3.3 as I have had constant hung 
agents of late and there was a suggestion on the thread that it helps.  
(That, and gdb shows that my stuck agents are generally lost somewhere 
in db-4.2 land.)

The problem is that this makes my cf_lastseen.db file no longer readable:

cfengine:: Directory /var/cfengine/inputs had permission 700, changed it 
to 750
/var/cfengine/cf_lastseen.db
cfengine:: Couldn't open last-seen database /var/cfengine/cf_lastseen.db
Segmentation Fault (core dumped)

If I delete it, it is still quite unhappy:

cfengine:: Directory /var/cfengine/inputs had permission 700, changed it 
to 750
/var/cfengine/cf_lastseen.db
cfengine:: Couldn't open last-seen database /var/cfengine/cf_lastseen.db
Segmentation Fault (core dumped)

Putting a zero-byte file also doesn't mollify it:

/var/cfengine/cf_lastseen.db
cfengine:: Couldn't open last-seen database /var/cfengine/cf_lastseen.db
cfengine:: db_open: Bad file number
Segmentation Fault (core dumped)


Any suggestions (short of reinstalling the agent altogether)?

Could we get an option to force this file to be rebuilt from scratch?  I 
don't care about data loss, as the friendstatus stuff is of only minor 
importance to me.   Even better than a db regeneration option would be 
default agent behavior of simply spitting out a warning and regenerating 
the file when encountering an invalid cf_lastseen.db file.

--

Chip Seraphine
Unix Administrator
TradeLink, LLC
312-264-2048
chip@trdlnk.com