[ejabberd] Very Strange Problem with ejabberd 16.03 and muc

Mickaël Rémond mremond at process-one.net
Thu Jun 9 15:29:11 MSK 2016


Hello,

The problem is that you have process ID retained in your cluster that come
from a node that has been stopped and restarted.
I am not sure how you got there, as a properly configured system does not
keep process id between restart.
You may have a misconfiguration on your session table or MUC service.

Anyway, a restart of your cluster should fix the issue.

Best regards,

-- 
Mickaël Rémond


On Thu, Jun 9, 2016 at 8:20 AM Gerhard Schmidt <schmidt at ze.tum.de> wrote:

> HI,
>
> some of our users report that there are some strange problems with the
> muc part of our server.
>
> I have tested the muc server an discoverd that once a user was in a
> conference and left they are unable to join again
>
> I'm running ejabberd 16.03 with erlang 18.3.3 on two FreeBSD 10.3
> servers in a cluster.
>
> The problem seams to have started when we upgraded from ejabber 15.07
> and erlang 18.2.2 to the actual configuration.
>
> the only error message i can find are messages like this
>
> 2016-06-09 08:01:37.498 [error] emulator Discarding message
> {route,{jid,<<"estartu">>,<<"mytum.de">>,<<"Office">>,<<"estartu">>,<<"
> mytum.de">>,<<"Office">>},{jid,<<"wosintern">>,<<"conference.mytum.de
> ">>,<<"estartu">>,<<"wosintern">>,<<"conference.mytum.de
> ">>,<<"estartu">>},{xmlel,<<"presence">>,[{<<"to">>,<<"
> wosintern at conference.mytum.de/estartu
> ">>},{<<"type">>,<<"unavailable">>}],[]}}
> from <0.13536.1> to <0.6097.3> in an old incarnation (2) of this node (1)
>
> I am really get quite a view of them in the error.log
>
> any help is greatly appreciated as the usage of the muc service is not
> possible right now.
>
> Regards
>    Gerhard
>
> --
> ----------------------------------------------------------
> Gerhard Schmidt                | E-Mail: schmidt at ze.tum.de
> Technische Universität München | Jabber: estartu at ze.tum.de
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