Broadcast publishing point stops
From: Harry (anonymous_at_discussions.microsoft.com)
Date: 06/09/04
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Date: Wed, 9 Jun 2004 15:08:01 -0700
Broadcast publishing points stop and do not restart if the
stream is interrupted.
The problems have been random, but here is a precise
scenario:
Radio station k123 has a WM 7.1 encoder and broadcasts to
our W2003 server running WM9 Services. The publishing
point is set to pull, and the plug-in "start publishing
point when a client connects" is disabled. The encoder
computer crashes. The publising point stops. The encoder
computer reboots and starts encoding again, and looks
normal through pcAnywhere. Clicking on a link to listen to
that stream gives an error message "Windows Media Player
cannot play the file because the server is busy. Try again
later."
However, this is a powerful but lightly loaded server. It
has gigabit connections and typically never runs more than
1-2% cpu occupancy. At the moment this particular event
occurred it was only at 1% with only 15 unicast clients
connected.
Then I changed the plug-in to ENABLE "start publishing
point when a client connects". Now try to connect with a
player and the player is able to receive the stream and
the publishing point status turns to "on".
We've had other such events that caused similar problems.
Yesterday a tech in the datacenter overloaded the circuits
on the rack and popped a circuit breaker causing several
of our servers to go down. We experienced the same kind of
problem on a couple of streams. We have just upgraded to
W2003/WM9, but previously had similar problems on a
cluster of six W2000/WM7 servers wherein a stream had hung
on four of the servers in the cluster, but was still
working on two of the servers.
We seem to have had the same type of failures whether or
not the plug-in is enabled.
Our customers stream live 24x7, and this kind of
unreliability is intolerable. btw, I noticed that someone
else asked the same kind of question about 3 months ago,
with no answer
thx
Harry Emerson
hemerson at surfernetwork.com
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