[mythtv-users] MySQL and remote FEs

Lan Barnes lan at falleagle.net
Sun Aug 5 01:59:17 UTC 2007

Thank you. These are fruitful areas to pursue.

On Sat, August 4, 2007 6:24 pm, Nick Morrott wrote:
> On 05/08/07, Lan Barnes <lan at falleagle.net> wrote:
>> I'm trying to get remote FEs to connect to play videos and recordings.
>> I had this working once, then upgraded my Mythdora and lost it, but
>> ignored the issue till now because I just hard wired (cat 5) my BE to
>> the
>> hub. The wireless was OK for mythfilldatabase, but stuttered and shook
>> on
>> recording playback over the network.
>> Here is what I remember and have tried.
>> 1. I granted permissions 'all' on mythconverg.* to user mythtv coming
>> from
>> 192.168.1.% and confirmed that remote machines can mysql in over the
>> net.
>> I also spilled the table that shows my grant worked.
> If you log in to a remote SQL server on the network, it's more than
> like a MythTV configuration issue.
>> 2. I configured the BE to see itself as and also tried its
>> name, xena (a mythical TV character, this being my weak whimsy) because
>> that's in /etc/hosts. No joy either way.
> If you run
> mysql> SELECT * FROM `settings` where value like '%ServerIP%';
> from the mysql prompt you will get a list of the stored IP address and
> which hostnames they are recorded against. Changing IPs and hostnames
> can cause such problems (I helped the other day on IRC with the exact
> same issue)
> You need to ensure that the MasterServerIP entry is correct for the
> _master_ backend (note no hostname associated with this entry. There
> are also BackendServerIP entries for each backend on the network,
> which have both IP and hostname recorded. These entries are configured
> via mythtv-setup on each backend.
>> 3. I configured the FE on xena to look for mythconverg on
>> The results: when I reboot xena the FE on the FE/BE box can no longer
>> connect with mysql. I had to return everything to localhost before my
>> family returned and demanded ScoobeyDoo.
> On all of the concerned machines, check the contents of the following
> files to ensure they all agree with the source of SQL database (note
> you may not have the first file if you run mythbackend as root with a
> defined $HOME, and you need to amend the last path to reflect the UNIX
> user that you run mythfrontend as):
> /.mythtv/mysql.txt
> /home/mythtv/.mythtv/mysql.txt
> /root/.mythtv/mysql.txt
> All of these files should point to the real IP address of the DB host,
> with the correct user/pass information.
> Once all of these entries are consistent with each other and your
> local network settings, you should be up and running.
> Also note that mythfrotnend allows you to use a custom identifier to
> store settings instead of using the hostname of the machine at the
> time the setting was created. This is ideal for installations when a
> machine's hostname can change without warning (or through playing :) )
> and should help to alleviate problems where settings don't seem to
> stick.
> --
> Nick
> MythTV Official wiki:
> http://mythtv.org/wiki/
> MythTV users list archive:
> http://www.gossamer-threads.com/lists/mythtv/users
> "An investment in knowledge always pays the best interest." - Benjamin
> Franklin
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Lan Barnes

SCM Analyst              Linux Guy
Tcl/Tk Enthusiast        Biodiesel Brewer

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