[ClusterLabs] SBD Latency Warnings

[Jorge Fábregas]

On 12/30/2015 01:14 PM, emmanuel segura wrote:
> -5 <N>        Warn if loop latency exceeds threshold (optional, watch only)
>             (default is 3, set to 0 to disable)
> 
> sbd -d /dev/mydevicepath dump | grep -i loop
> Timeout (loop)     : 1
> 
> this is only a warning and If you want you can ignore, but looking the
> source code, this means that sbd process wasn't scheduled for more
> than 4 seconds

HI Emmanuel,

Thanks for confirming and for the wonderful feedback. I totally missed
the -5 option!    I've now included a "-5 20" on my /etc/sysconfig/sbd
file.  Hopefully it will stop these messages since I don't expect a
delay higher than 10 seconds!  And if the hypervisor restarts the VM
(watchdog timer expiration; set at 30 secs) at least I'll get the
warning (written on the file) when it reaches a 20 second delay.

Thanks!
Jorge