[mythtv-users] One step forward, two steps back - Frontends not woring properly

[Damian]

On 01/05/2016 11:50, Mark wrote:
> Am 29.04.2016 23:31, schrieb Damian:
>
>> I ran one of the remote frontends from the command line to see what
>> error messages I was getting while things were freezing, and I got
>> lots of copies of messages like this ...
>>
>> 2016-04-29 21:49:14.102196 I MythCoreContext::ConnectCommandSocket():
>> Connecting to backend server: 192.168.0.2:6543 (try 1 of 1)
>> 2016-04-29 21:49:21.121452 E  MythSocket(3b91410:68): ReadStringList:
>> Error, timed out after 7000 ms.
>> 2016-04-29 21:49:21.121843 C  Protocol version check failure.
>>             The response to MYTH_PROTO_VERSION was empty.
>>             This happens when the backend is too busy to respond,
>>             or has deadlocked due to bugs or hardware failure.
>> 2016-04-29 21:49:21.122406 W  Backend : gingerserver currently
>> Unreachable. Skipping this one.
>> 2016-04-29 21:49:21.122558 I MythCoreContext::ConnectCommandSocket():
>> Connecting to backend server: 192.168.0.2:6543
>>
>> I've just gone back to the server (backend system) and run the
>> frontend on there. Now that's having the same trouble. Almost
>> completely unresponsive. I haven't even touch this machine while I've
>> been trying other stuff!
>
> I had some very similar issue in my Ubuntu/mythbuntu setup recently.
> Connectivity/network was fine, backend and first frontend worked fine.
> But when connecting a second frontend (with slave backend) all became 
> slow and now also my first frontend had weird issues.
>
> In my case all I had to do is check/increase the 'max_connections' 
> parameter of mysql, to allow for more concurrent connections.
>
> After that I restarted all myth backends and frontends - and problems 
> were gone.
>
> Just my 2 cents,
> regards,
> Mark

I had high hopes for this solution Mark. Unfortunately, it hasn't worked.

I set max_connection on the backend in /etc/mysql/conf.d/mythtv.cnf to 250.
That 'seemed' a bit more responsive to me, so I tried 1000.
It didn't fix things though unfortunately.

Thanks anyway,
Damian