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Windows Server Forum / Windows Media Server / May 2007

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WMS Publishing point needs to be bounced???

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Sai - 22 May 2007 18:45 GMT
We have a WMS with 4 publishing points that broadcast output from 4 encoders.
There are 5-6 clients (Media players) that connect to each of these
publishing points.

The players work fine for several hours. We keep bringing the players down
and restart them as required. But the WMS is always running fine.

But every few hours a strange problem is observed. The player is not able to
play the publishing point video. It just says "Bufferring" and then says
"Ready". But will not play the video. All clients for that publishing point
will behave the same way. Other publishing points are ok, however.

When this happens, if I take a look at WMS, I see that the sick publishing
point is still "green" or running. If I now stop and start the publishing
point and then connect a media player to the same publishing point, it will
be fine.

But for some reason the publishing point seems to be entering this sick
state and we dont know what to do.

How do we prevent this from happenning? How do I know what is going on?
Do we need to write some kind of WMS plugin to trap and prevent this error?
If so what type?
Any help is appreciated.
Thanks
-Sai
Mike Lowery - 22 May 2007 22:34 GMT
Are these unicast or multicast publishing points?  I've seen this problem with
multicast.  WMS seems to get hung up sometimes for no apparent reason.  Also
check the WMS log file.

> We have a WMS with 4 publishing points that broadcast output from 4 encoders.
> There are 5-6 clients (Media players) that connect to each of these
[quoted text clipped - 22 lines]
> Thanks
> -Sai
Sai - 23 May 2007 14:48 GMT
These are all unicast publishing points.
Directly connecting to the encoder endpoint for the sick wms publishing
point continues to work. It is only the WMS publishing point that does not  
give out video.

Also not all wms publishing points on that WMS machine are sick. Only one is
sick at any time. Others are fine.

There is nothing in the WMS logs.
Please let us know if you have any additional insight into this.
Thanks
-Sai

> Are these unicast or multicast publishing points?  I've seen this problem with
> multicast.  WMS seems to get hung up sometimes for no apparent reason.  Also
[quoted text clipped - 26 lines]
> > Thanks
> > -Sai
m3taverse - 23 May 2007 15:46 GMT
Hey Sai,

Are you running any kind of server sided publishing point?
I ask because I have been experiencing this exact same problem since a few
months and have been unable to track down its cause.
Like you said, there's nothing that points to a problem in the logs, and the
server itself thinks everything is fine yet de publishing point will not send
you any video untill you restart it.
So far I've been guessing its related to how my server sided publishing
points function, but for now I'm not sure.

> These are all unicast publishing points.
> Directly connecting to the encoder endpoint for the sick wms publishing
[quoted text clipped - 39 lines]
> > > Thanks
> > > -Sai
Sai - 23 May 2007 16:12 GMT
Yes we have encoder machines streaming out video to the Windows media server
machine. Windows media server machine has all these publishing points that
are accessed by client machines running media players.

The strange thing is that when we check the sick wms publishing point on the
wms server, it remains lighted green(running). When the publishing point is
initially started and streaming successfully it is green. But even after it
gets sick and not streaming anymore, it remains green.

Any ideas?

> Hey Sai,
>
[quoted text clipped - 50 lines]
> > > > Thanks
> > > > -Sai
 
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