[mythtv-users] how to get slaves to automatically reconnect to the master backend

[Peter Abplanalp]

On Thu, Aug 20, 2009 at 8:58 AM, Tom Lichti<redpepperracing at gmail.com> wrote:
> On Thu, Aug 20, 2009 at 10:46 AM, Peter
> Abplanalp<pta-myth at psaconsultants.com> wrote:
>> On Thu, Aug 20, 2009 at 8:33 AM, Tom Lichti<redpepperracing at gmail.com> wrote:
>>> When the master reboots spontaneously, the slaves probably still have
>>> a socket open to what they think is the master, and when the master
>>> actually comes back up, the slaves don't know, because they think they
>>> are still connected to the master. Not sure how to get around that
>>> without some scripting.
>>
>> i think you are probably correct, any ideas on how i might script that?
>
> Well....some kind of heartbeat running in cron on the slaves that
> tries to ping the master server, and if it fails, recycle the
> mythbackend process. Now you are at the mercy of the network though.
> You could also try to do some kind of TCP connection from the slave as
> a test of the backend. Or if you want to get even more fancy, have a
> cron on the slaves that gets the uptime from the master and if it is
> less than the previous value, recycle the mythbackend process. As they
> say in perl, there is more than one way to do it.

thanks for the tips.  i think i may just set up some ssh keys and then
put an ssh command in rc.local to restart the backend on each slave.
that way if the master ever reboots, the slaves are bounced.

thanks again for the help.

-peter