It is a lot simpler than you think, if you already know about NFS and
MySQL you can probably do this in 30 seconds or less. If you don't give
yourself 5minutes to double check everything.
All you need to do is share the database and the /var/snd directory
between the two machines. Then add your new machine to rdadmin.
First the easier bit of the two.
*On the production machine
*Check that you can talk to the on air mysql database:
$ mysql -h ip_or_hostname_of_on_air_machine -u rduser -pletmein
If it lets you connect great. If not check that mysql is set to listen
to the network:
*On the on air machine (only if you can't connect)
*$ sudo nano /etc/mysql/my.cnf
Find the line bind-address = 127.0.0.1 and change it to 0.0.0.0
Then restart the mysql service (this may disrupt Rivendell if it does
any DB work while you do this, in theory if you're in the middle of a
song playing you should be fine).
*On the production machine (skip to here if you can connect)
*Assuming you can now access mysql from here, change rd.conf to look at
the remote MySQL:
$ nano /etc/rd.conf
Find this bit:
[mySQL]
Hostname=localhost
And change it to the address of your on air machine.
*On the on air machine
*With that out of the way, you need to share the /var/snd directory.
The easiest thing to use is NFS (similar to windows network shares but
it works more reliably).
You might have to install nfs (sudo apt-get install nfs-kernel-server),
assuming that is already there:
$ sudo nano /etc/exports
Add the line (amend this for your network mine is 10.43.X.X, so I do this):
/var/snd 10.43.0.0/255.255.0.0(rw,sync,all_squash,subtree_check)
Then "export" the share:
$ sudo exportfs -r -v
And it should say exported /var/snd.
*On the production machine
*Now all you need to do is mount the remote /var/snd to the local
/var/snd. Make sure you've installed the NFS client (sudo apt-get
install nfs-common). Then test mount it:
$ sudo mount -t nfs ip_or_name_of_on_air_machine:/var/snd /var/snd
if that works you'll see all your on air audio inside /var/snd.
To permanently mount /var/snd (so that it sticks between reboots):
$ sudo nano /etc/fstab
Add the line:
ip_or_name_of_on_air_machine:/var/snd /var/snd nfs
rsize=32768,wsize=32768,timeo=14,intr
*
*Finally, load up rdadmin on either machine and add a new host. Make
sure it is the same name as your production machine and set it up how
you want it to work. You may get a message about missing audio
assignments. Thats OK, as soon as the Rivendell daemons are restarted
it will add itself to the database.
That is all you have to do to share amongst machines.
On 03/03/16 01:48, Hugh Stolmer wrote:
Hello,
I would like to link a production machine to an on-air machine so I have
only one database that resides on the on-air machine. Then I do not have
to disturb the on-air machine to do production and log management.
Can anyone point me to some clear instructions on how to do this?
Both machines have been built with a Rivendell Appliance DVD (3.7.0) on
Centos7 and are running Rivendell 2.10.3.
Thanks for any help,
Hugh S
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