[mythtv-users] backend no mythpreviewgen or deletes

Stuart Auchterlonie stuarta at squashedfrog.net
Thu Oct 27 13:15:38 UTC 2016

On 27/10/16 14:11, Michael T. Dean wrote:
> On 10/26/2016 01:48 PM, Jerome Yuzyk wrote:
>> [0.27.6, Fedora 22]
>> My backend has been behaving a little oddly over the past couple days
>> and I'm trying to understand why.
>> First off, mythpreviewgen sporadically doesn't work, usually in
>> stretches of recordings, and then starts again. It's curious, a bit
>> inconvenient, but I'd like to know.
>> Secondly, mythbackend stopped slow-deleting deleted recordings a
>> couple of days ago, which I detected with a reporting tool I run
>> nightly. So I restarted the mythbackend service and logged this message:
>>      Oct 26 09:21:41 tv mythbackend: 2016-10-26 09:21:41.472032 E 
>> AutoExpire: Filesystem
>>      Info cache is empty, unable to calculate necessary parameters.
> This happens when the system can't find the directories (and, therefore,
> the file systems) specified by your Storage Groups.
>> I went into the frontend to try to Delete Forever the Deleted
>> recordings that had accumulated and was unsuccessful at first. I'd
>> select Delete Forever and nothing would happen initially for most
>> recordings. So I restarted the mythbackend service again, let it
>> settle, then went back into the frontend to delete and had some
>> success. I kept trying and finally I could Delete Forever each of the
>> Deleted items.
>> The only other oddity is that I had a commflag job that had died with
>> an "Exit Code 136", which got cleared on the second mythbackend restart.
>> Any ideas about what this is all about? The box has been running for
>> only 90 days, which is trivial in its uptime history.
> I have no idea what's actually happening, but it sounds like some
> file-system funkiness--like your file systems are appearing and/or
> disappearing out from under MythTV (and, perhaps, taking too long in
> some cases to reappear, causing a timeout/failure).  Are you using some
> kind of auto-mounter for these file systems?
> Mike

Might also be worth forcing a filesystem check, if this system has
been around as long as you are inferring.....

You also didn't mention what filesystem you use here?


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