[mythtv-users] Help, frontends cannot connect to backend

[Shadowfirebird]

I have a similar problem.

I've working frontend/backend on the same box (some issues but you can
certainly record and watch TV).  Ubuntu 8.10.

I'm trying to add a new, frontend only box (Ubuntu 9.04).  The new front end
sees the backend -- it lists the shows already recorded and even shows them
in the little preview window.  But when I try to actually watch them I get
an error message saying that the file cannot be found.

The standard output from mythfrontend (run from the terminal) shows a
slightly different error -- "file ' ' cannot be found".

A friend came around with a laptop with a working frontend on it and it was
fine, so the problem is at the frontend.  I've tried completely removing all
traces of mythTV and reinstalling -- even doing a 'sudo find /' to discover
and remove all traces of mythtv from the front end box.  But whenever it
reinsalls it always picks up the settings from somewhere (the backend?!)

Stanb, is this like your problem?  What errors do you see at the terminal
when you try to watch something?

Shadowfirebird.



On Sun, Dec 31, 2006 at 5:20 PM, stan <stanb at panix.com> wrote:

> Aparently this was too big to ge fowarded to the list, so I've trimed the
> logs a bit.
>
> I've been ffighting this for 2 1/2 days now, so I'd REALLY appreciate ANY
> sugestions.
>
> -----
>
> I'm trying to rebuild my Myth infrastruccture this weekend. Historically,
> I've use KnoppMyth, but I talked mysellf into using Ubuntu this time, as
> I'm moving to Ubuntu workstations, and it seemed that would make keeping
> the versions on the frontends/backend in synch easier.
>
> I'm using Ubuntu 6.10 X86, and I'v mostly gotten teh backend working. It's
> frontend can connect finw. I've got (at the moment) 3 frontends. All of
> these (inclusing  one just built from scratch using the Howto on the Ubuntu
> Help pages), can connect to the MySQL database, just fine. But, they cannot
> seem to connect to the myth backend itslef. nmap shows, what I beleive are
> the correct, ports open on the backend "panda":
>
> Starting Nmap 4.10 ( http://www.insecure.org/nmap/ ) at 2006-12-31 10:05
> EST
> Interesting ports on panda.fas.com (205.159.77.232):
> Not shown: 1674 closed ports
> PORT     STATE SERVICE
> 22/tcp   open  ssh
> 80/tcp   open  http
> 3306/tcp open  mysql
> 6543/tcp open  mythtv
> 6544/tcp open  mythtv
> MAC Address: 00:14:6C:81:E3:9C (Netgear)
> Device type: general purpose
> Running: Linux 2.4.X|2.5.X|2.6.X
> OS details: Linux 2.4.0 - 2.5.20, Linux 2.4.7 - 2.6.11
>
> Yet when I do a tcpdump on the new frontend, after starting the frontend,
> and trying to "Watch V", I don't see any evidence of it trying to originate
> traffic for the Myth backend. I _do_ see the MySQL traffic:
>
>
> 09:43:14.965352 IP boo-boo.fas.com.43901 > panda.fas.com.mysql: S
> 1793549980:1793549980(0) win 5840 <mss 1460,sackOK,timestamp 6872472
> 0,nop,wscale 2>
> 09:43:14.965432 IP panda.fas.com.mysql > boo-boo.fas.com.43901: S
> 466253708:466253708(0) ack 1793549981 win 5792 <mss 1460,sackOK,timestamp
> 11276762 6872472,nop,wscale 2>
> 09:43:14.965576 IP boo-boo.fas.com.43901 > panda.fas.com.mysql: . ack 1 win
> 1460 <nop,nop,timestamp 6872472 11276762>
> 09:43:14.966885 IP panda.fas.com.mysql > boo-boo.fas.com.43901: P 1:71(70)
> ack 1 win 1448 <nop,nop,timestamp 11276763 6872472>
> .
> .
> .
>
> 09:43:28.267115 IP boo-boo.fas.com.43901 > panda.fas.com.mysql: P
> 44971:45058(87) ack 44901 win 1728 <nop,nop,timestamp 6873802 11280087>
> 09:43:28.267538 IP panda.fas.com.mysql > boo-boo.fas.com.43901: P
> 44901:44985(84) ack 45058 win 1448 <nop,nop,timestamp 11280088 6873802>
> 09:43:28.268693 IP boo-boo.fas.com.43901 > panda.fas.com.mysql: P
> 45058:45149(91) ack 44985 win 1728 <nop,nop,timestamp 6873802 11280088>
> 09:43:28.269216 IP panda.fas.com.mysql > boo-boo.fas.com.43901: P
> 44985:45069(84) ack 45149 win 1448 <nop,nop,timestamp 11280088 6873802>
> 09:43:28.269655 IP boo-boo.fas.com.43901 > panda.fas.com.mysql: P
> 45149:45235(86) ack 45069 win 1728 <nop,nop,timestamp 6873802 11280088>
> 09:43:28.270043 IP panda.fas.com.mysql > boo-boo.fas.com.43901: P
> 45069:45153(84) ack 45235 win 1448 <nop,nop,timestamp 11280088 6873802>
> 09:43:28.300755 IP boo-boo.fas.com.43901 > panda.fas.com.mysql: . ack 45153
> win 1728 <nop,nop,timestamp 6873806 11280088>
>
> So, I suppose the first question is, How does the frontend know the
> namee/addeess of the Myth backend to atempt to connect to? Is it stored in
> the database (makes sense that it would be, since the backend connects
> directly to that).
>
> What other things can I check to try to resolve this issue?
>
> Thanks fro any help.
>
> --
> Unix is very simple, but it takes a genius to understand the simplicity.
> (Dennis Ritchie)
>
> ----- End forwarded message -----
>
> --
> Unix is very simple, but it takes a genius to understand the simplicity.
> (Dennis Ritchie)
>
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