[Linux-HA] heartbeat 2.0.0, watchdog, RHEL 4

[Alan Robertson]

Poyner, Brandon wrote:
>>Thanks for the information.  Actually, I thought that code 
>>was no longer useful.  I thought it would autoload the 
>>softdog just from opening the device.
> 
> RHEL uses udev by default, and by default /dev/watchdog doesn't exist at
> boot time.  It kernel does attempt to load the module if /dev/watchdog
> exists with the correct major/minor and you open it.  The problem in the
> init script is that it attempts an insmod which fails, and then it tries
> to find the minor in /proc/misc which it can't find, and then tries to
> mknod the device but due the previous error doesn't send mknod enough
> parameters.
> 
>>This would be because for some reason heartbeat exited 
>>prematurely.  I would expect to find a core file somewhere...
> 
> You are correct.  Do you have any gdb commands you'd like me to run?
> Heartbeat 2.0.0 is no longer installed on this machine but I do have it
> on installed on a test box.

A stack traceback would be good.

> -rw-------  1 root root 41717760 Aug 17 11:50
> /var/lib/heartbeat/cores/root/core.2177
> -rw-------  1 root root 40771584 Aug 17 12:08
> /var/lib/heartbeat/cores/root/core.2187
> 
>>I have no idea why it can't write to media pipe 1.
>>
>>I think that's the unicast child process...  I have no idea 
>>why you're sending bcast and ucast to the same ethernet 
>>adapter...  Can you help me with this?
> 
> Ignorance on my part, I was pretty sure that wasn't the right setup but
> I've been running like that for a long time under heartbeat 1.0.3.  Are
> you saying I should pick one or the other?  This is a dedicated ethernet
> card for the heartbeat.

There is no advantage to doing both.  Sometimes these things are just of 
no additional help, and sometimes they indicate some larger 
misunderstanding.  I was just checking.

>>What is at address 192.168.9.1?  I assume it's the other node in the 
>>cluster?

Thanks for your help on this.  Without help it's almost impossible to 
fix problems remotely.

-- 
     Alan Robertson <alanr at unix.sh>

"Openness is the foundation and preservative of friendship...  Let me 
claim from you at all times your undisguised opinions." - William 
Wilberforce