I am involved in the support of a digital audio editing and production system
involving Windows 2k clients storing the audio assets on an AIX backend. The
problem we have been experiencing is that we open audio files in the editor we
are getting a minimum of 2 sec delay between pressing play and the start of the
audio playback. Initial tests show that this delay can be up to 6 seconds and
that typically there are four to five conversations between the samba server
and the win2k DC before the file is begun to be streamed to the client. We
haven't established yet whether these conversations are all relevant to the
client or whether they are authentication requests for other clients. We are
using pass-through authentication. We have noticed that despite our samba
config being the default regarding autodisconnect (ie never disconnect) we see
the client application disconnect after a few seconds of inactivity within the
audio editor. This leads us to suspect that the application is causing the
disconnect by design. Also, browsing the samba share in windows explorer
causes a permanent samba connection, and in this situation we do not have the
delay in streaming of the audio.
My questions are:
Does samba process authentication requests in a
serial manner, therefore are we getting a delay due to a queuing of requests?
If the above is true is it the case that samba is
not recommended as a viable solution for time critical applications?
Is it possible that we are having a problem with
oplocks? I don't think is necessarily the case as there shouldn't be multiple
users accessing
the same audio file in this environment.
many thanks in advance,
Martin.
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