Re: /etc/namedb->_at_ referrs to NIL after crash or typing "reboot" (not shutdown -r)

On Aug 17, 2013, at 10:35 AM, O. Hartmann wrote:

> On Sat, 17 Aug 2013 21:10:49 +0400
> Boris Samorodov <bsam_at_passap.ru> wrote:
> 
>> 17.08.2013 13:36, O. Hartmann пишет:
>> 
>>> I can reproduceable truncate the link in /etc/ to be NIL by typing
>>> simply "reboot" when rebooting the box
>> 
>> Does it make any difference if you use "shutdown -r" instead?
>> 
> 
> Yes, when using "shutdown -r" the link isn't broken and the system
> reboots and operates as expected. Only if I use the "quick and dirty
> way" via "reboot" or after a crash when service named ahs already been
> started the link is dead. If a crahs occurs BEFORE service named has
> been started, the recovery is also operable - this is my observation.

Does "reboot" show the same problem If the system has been running
for a while (at least 15 minutes or so)?

Your broken link sounds like the expected behavior when you
do a dirty reboot shortly after the link has been created (before
the link contents have been written all the way to disk).

But the broken /etc/namedb link shouldn't prevent named from
restarting after the reboot; maybe we should change the named
startup scripts to test this link and delete/recreate it if it's broken?

Tim