[mythtv-users] Ubuntu Mythbackend issue

[Ashu Desai]

On Mon, May 14, 2018 at 4:15 PM Mark Perkins <perkins1724 at hotmail.com>
wrote:

>
>
>
> On 14 May 2018 1:26:29 am Ashu Desai <ashu.desai at gmail.com> wrote:
>
>>
>>
>> On Sun, May 13, 2018 at 7:34 AM Mark Perkins <perkins1724 at hotmail.com>
>> wrote:
>>
>>>
>>>
>>> On 12 May 2018 11:16:27 pm Ashu Desai <ashu.desai at gmail.com> wrote:
>>>
>>>>
>>>>
>>>> On Sat, May 12, 2018, 6:06 AM Mark Perkins <perkins1724 at hotmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>> Looks to me like the FE is talking to the database (port 3306) but not
>>>>> the backend (port 6543). Is your BE on the same machine / IP as the
>>>>> database?
>>>>>
>>>>
>>>> Different machines. x.x.x.54 is my backend,  58 is my FE
>>>>
>>>
>>> Is the database (server) located on the same server as your BE? The FE
>>> is connecting to the database but not the BE. As it appears to me at least.
>>>
>>
>> Yes, the mysql is on the Ubuntu BE, and the FE is trying to access it.
>> The weird part is, it works on and off - i think it works every time I try
>> to do a "chmod 775" on the backend but i think with a rescan it gets messed
>> up.
>>
>>
>>
>>>
>>>
>>>
>>>> no firewall on either.
>>>>
>>>> it's the myth proto error and file permissions that also worry me
>>>>
>>>>>
>>>>>
>>>>>    1. 2018-05-11 18:28:14.563156 I
>>>>>     MythCoreContext::ConnectCommandSocket(): Connecting to backend server:
>>>>>    10.0.0.54:6543 (try 1 of 1)
>>>>>    2. 2018-05-11 18:28:14.592341 I
>>>>>     MythCoreContext::CheckProtoVersion(): Using protocol version 91 BuzzOff
>>>>>    3. .....
>>>>>    4. 2018-05-11 18:29:12.307678 E  MythSocket(7ff0c400b050:48):
>>>>>    ReadStringList: Error, timed out after 30000 ms.
>>>>>    5. 2018-05-11 18:29:12.308138 E  MythSocket(7ff0c400b050:-1): No
>>>>>    response.
>>>>>    6. 2018-05-11 18:29:12.308161 N
>>>>>     MythCoreContext::SendReceiveStringList(): Connection to backend server lost
>>>>>    7. 2018-05-11 18:29:12.309207 N
>>>>>     MythCoreContext::connectionClosed(): Event socket closed.  No connection
>>>>>    to the backend.
>>>>>
>>>>>
>>>>>
>>>>> What does the BE log for the FE connection attempts? Check firewall
>>>>> settings (6543 and 6544) on the BE maybe.
>>>>>
>>>>>
>> Here's what the backend logs:
>>
>> https://pastebin.com/yrAsWNeZ
>>
>>
> Only looking briefly on mobile but I can't see any connection attempts
> from remote "mythfe7" FE to your "ScorpioOne" BE. I would double check
> port 6543 and 6544 access from remote FE to BE.
> ____________________
>

So this happens every now and then. Like right now - it works fine! I can't
seem to figure out what is causing this disconnect. The one I have posted
was when a couple hours earlier i had done metadata retrieval - but I would
hate to think that after a few hours, it's still bogging down the FE.

Last night I got permissions issue. This morning, without me having done
anything, I can access it fine. I wish I could debug this to find out what
is going on here...
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