Sound connection with server vanishes during a session

[GoogleCodeExporter]

We are experiencing problems hard to explain. We have a fully functionable
OM installation. Before the session we tested that things work with the
presenter and one attendee.

In the session we had 8 participants. What happens was that:

* In the beginning the sound was echoed through one user who used w2k. As
she did not have to speak, just listen, we muted her line.

* During the session when I started recording, the connection problems
started. The presenter's voice connection got dodgy (on and off in short
sequences). We tried to turn the recording off and I asked if the attendees
are able to hear the sound. They were and the recording was turned on
again. During the session the sound connections of the users were
interrupted. Pushing the synchronize button helped for a few seconds or so
but the problem was present all the time. At the same time some of the
attendees were able to hear the sound perfectly all the time.

* The recording is corrupted in cases like this.

I think this is a server side problem. I have experienced same kind of
problem with Adobe Connect Pro. I have absolutely no clue how to find the
cause of the problem.  

Which version of OpenMeetings are you running?

r2796

What's your operating system on client and server side?

Server: debian 5.0.3

Client: Ubuntu Karmic, Windows XP, Windows 2000

Is it a problem related to the client/usability or server-side?

Both - most likely related to server side

Did you have any trace/debug output?

Unfortunately not.

Original issue reported on code.google.com by elias.aa...@iki.fi on 19 Feb 2010 at 8:26

[GoogleCodeExporter]

*I have experienced same kind of
problem with Adobe Connect Pro.*
=> hehe

okay but I think the first conclusion for me would be:
1) Does the participant with the bad mic-sound had Bandwidth Issues?
2) Does the participant who is hearing the bad-sound had Bandwidth Issues?
3) Has the server had a Bandwidth bottleneck?
4) Does the participant who is hearing the bad-sound had CPU Issues (maybe 99% 
System
Use)?
5) What kind of OS + Environment does the participant with the bad mic had?
6) What kind of Os + Environment does the participant who is hearing the 
bad-soun had?

Original comment by seba.wag...@gmail.com on 19 Feb 2010 at 9:09

[GoogleCodeExporter]

also make sure you have at least v 1.1 running. There have been some significant
changes in the audio-video sync and the error handling of recorded files in the 
last
revisions before the release.

Original comment by seba.wag...@gmail.com on 19 Feb 2010 at 9:26

[GoogleCodeExporter]

Some comments....

>okay but I think the first conclusion for me would be:
>1) Does the participant with the bad mic-sound had Bandwidth Issues?
Not likely - connected to 100 Mbit/s school network.

>2) Does the participant who is hearing the bad-sound had Bandwidth Issues?
The bad sound was heard by all participants. No likely to be a participant side
bandwith issue.

>3) Has the server had a Bandwidth bottleneck?
Server has a 10/10 meg connection to Internet. Network usage data is not 
available.

>4) Does the participant who is hearing the bad-sound had CPU Issues (maybe 99%
>System Use)?
In my case it was not the case. CPU load was below 50%. This was the case using 
both
Ubuntu Karmic and Windows XP and Firefox on both. I do not know the situation 
of all
participants.

>5) What kind of OS + Environment does the participant with the bad mic had? 
Windows XP + Firefox

>6) What kind of Os + Environment does the participant who is hearing the 
bad-soun had?
Windows XP + Firefox, Ubuntu Karmic + Firefox

Some findings:

In the folder where the streams are stored there are 2 different types of flv 
files:

I guess these are created when user downloads a recorded session:
2010-01-28 15:44 89_28_01_2010_15_21_18.flv

But what are these?:
 bd38352f28b1896f491d4aba0c346b9b_10_02_2010_09_01_39.flv

It also seems to be the case that the amount of files in the folder where the 
streams
are saved does not diminish even if the user deletes the recorded files using 
the GUI.

How are the files supposed to be removed? There's nothing in cron about it.

Original comment by elias.aa...@iki.fi on 19 Feb 2010 at 9:58

[GoogleCodeExporter]

No Files are just marked as deleted there is not job in the background that 
deletes 
files. For now I think that is the prefered way to go as we do the same with 
the 
database records. That is a kind of strategy (of course you can doubt that it 
would be 
more sufficient to delete in some cases). But from a architecture point of view 
Deleting means: Actual problem with foreign keys and related records in "real 
databases" like Postgres. So deleting means => loss of data. That should not 
really 
happen. The actual way to do would be to run a Administration Job that the User 
can 
control from the Administration section.

Original comment by seba.wag...@gmail.com on 16 Mar 2010 at 10:10

• Changed state: Accepted

[GoogleCodeExporter]

Original comment by seba.wag...@gmail.com on 31 Jan 2012 at 12:23

• Added labels: Restrict-AddIssueComment-Commit

[GoogleCodeExporter]

OpenMeetings moves to Apache Foundation, update your bookmarks to the new 
project page:

http://incubator.apache.org/openmeetings/

New Issue tracker is located: https://issues.apache.org/jira/browse/OPENMEETINGS

New Mailing Lists located at: 
http://incubator.apache.org/openmeetings/mail-lists.html 

Original comment by seba.wag...@gmail.com on 31 Jan 2012 at 12:25