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List:       mythtv-dev
Subject:    Re: [mythtv] Random Master backend issues since upgrading to v29
From:       Anthony Giggins <seven () seven ! dorksville ! net>
Date:       2017-12-20 0:55:29
Message-ID: CAKpY+ar83qzRvrrcSu0RhHROLJEMdfEjH+XLu6TThgYgtMFrcw () mail ! gmail ! com
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On 19 December 2017 at 21:26, Stuart Auchterlonie <stuarta@squashedfrog.net>
wrote:

> On 18/12/17 23:03, Anthony Giggins wrote:
> > I've now had the master backend stop responding a couple of times since
> > upgrading, mythweb stops responding, Frontends cant playback, theres
> > nothing of note in the backend logs and system load is normal (I may
> > need to add extra logging can anyone suggest what logging) and the only
> > fix is to restart the backend service
>
>
> Sounds like it's deadlocked for some reason.
>
> You'll need to capture a core file and do some debugging so we can
> try to identify what is deadlocking.
>
> # gcore `pidof mythbackend`
>
> to create the core file
>
>
> Regards
> Stuart
>
>
Thanks I'll try both next time this happens.

Cheers,

Anthony

[Attachment #5 (text/html)]

<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On 19 \
December 2017 at 21:26, Stuart Auchterlonie <span dir="ltr">&lt;<a \
href="mailto:stuarta@squashedfrog.net" \
target="_blank">stuarta@squashedfrog.net</a>&gt;</span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"><span class="">On 18/12/17 23:03, Anthony Giggins wrote:<br> \
&gt; I&#39;ve now had the master backend stop responding a couple of times since<br> \
&gt; upgrading, mythweb stops responding, Frontends cant playback, theres<br> &gt; \
nothing of note in the backend logs and system load is normal (I may<br> &gt; need to \
add extra logging can anyone suggest what logging) and the only<br> &gt; fix is to \
restart the backend service<br> <br>
<br>
</span>Sounds like it&#39;s deadlocked for some reason.<br>
<br>
You&#39;ll need to capture a core file and do some debugging so we can<br>
try to identify what is deadlocking.<br>
<br>
# gcore `pidof mythbackend`<br>
<br>
to create the core file<br>
<br>
<br>
Regards<br>
Stuart<br><br></blockquote><div><br></div><div>Thanks I&#39;ll try both next time \
this happens.</div><div><br></div><div>Cheers,</div><div><br></div><div>Anthony  \
</div></div><br></div></div>



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