Hi Maxim,
we're still havin huge problems with people working from home. OpenMeetings 4
is useable, OpenMeetings 5 isn't - like, not at all.
As soon as everyone is in office, OpenMeetings 5 is great, super quality and
much simpler to use (no crappy flash).
I asked people to perform network-test, and the results show 1 Mb/s upload or
even less.
But since OpenMeetings 4 works, I'm not sure if the test is correct.
Also people tell me, their spouses use videoconferencing (not an the same time,
but with a different system) and they don't have these problems.
Since Flash will be end-of-life in 2021, I will not be able to offer
OpenMeetings 4 anymore.
But OpenMeetings 5 just doesn't work from home-office.
In case you have more suggestions, I would be really thankful.
Here's our scenario:
Ubuntu 20.04.1 LTS
Virtual Machine (VMware Version 11, 8 CPU cores, 8 GB RAM, 60 GB HDD <-- I can
upgrade those values without any problems)
One OpenMeetings-Server, not accessible from external PCs, so no need to get
the central firewall right (users are either in the office or use vpn; so
everybody is coming from internal network)
Clients use Firefox 78.4.1 ESR
OpenMeetings 5
Version 5.0.1
Revision 3628ad7
Builddate 2020-09-19T04:50:54Z
Installed using "Installation OpenMeetings 5.0.1 on Ubuntu 20.04 lts.pdf"
and "Installation SSL certificates and Coturn for OpenMeetings 5.0.1 on Ubuntu
20.04.pdf",
but with a domain certificate (instead of let's encrypt), so skipping 1-5
from the second installation guide.
Also skipping part 8 from the second manual, since OpenMeetings is not
behind a firewall (just used internally) anf ufw is not installed/activated.
LDAP configured and working
ldap_userdn_format=sAMAccountName=%s,OU=Users,DC=myfirm,DC=local
ldap_provisionning=AUTOCREATE
ldap_deref_mode=always
ldap_use_admin_to_get_attrs=true
ldap_sync_password_to_om=true
ldap_group_mode=NONE
ldap_group_query=(&(memberUid=%s)(objectClass=posixGroup))
ldap_user_attr_login=sAMAccountName
ldap_user_attr_lastname=sn
ldap_user_attr_firstname=givenName
ldap_user_attr_mail=mail
ldap_user_attr_street=streetAddress
ldap_user_attr_additionalname=description
ldap_user_attr_fax=facsimileTelephoneNumber
ldap_user_attr_zip=postalCode
ldap_user_attr_country=c
ldap_user_attr_town=l
ldap_user_attr_phone=telephoneNumber
# optional attribute for user picture
ldap_user_attr_picture=info
# ldap_user_attr_picture=thumbnailPhoto
ldap_group_attr=memberOf
ldap_user_picture_uri=profile.png
ldap_use_lower_case=false
ldap_import_query=(&(objectCategory=person)(wWWHomePage=*))
Logs for LDAP activated
sudo vi
/opt/open501/webapps/openmeetings/WEB-INF/classes/logback-config.xml
<logger name="org.apache.directory" level="DEBUG" />
==> I just deactivated that
More memory
cd /opt
cd open501/
sudo vi openmeetings.service
# Environment CATALINA_OPTS=" --> -Xms2g -Xmx4g
Change default resolution
sudo vi
/opt/open501/webapps/openmeetings/WEB-INF/classes/org/apache/openmeetings/web/room/VideoSettings.html
<option value="6" data-width="320" data-height="240"
selected="selected">320x240 [HVGA 4:3 (~56 KByte/sec)]</option>
Some Icons
Changed some logos/icons in /opt/open501/webapps/openmeetings/css/images
and /opt/open501/webapps/openmeetings/public/
Configuration/Administration
document.dpi 150
document.quality 90
screensharing.default.fps 10
max.upload.size 104857600
mp4.audio.rate 22050
mp4.audio.bitrate 32k
cam.fps 10
mic.rate 22
mic.echo.cancellation on
mic.noise.suppression on
ulimit
# edit the following file
user@ubuntu:~$ sudo vim /etc/security/limits.conf
# add following lines to it
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
root soft nproc 65535
root hard nproc 65535
root soft nofile 65535
root hard nofile 65535
# edit the following file
user@ubuntu:~$ sudo vim /etc/pam.d/common-session
# add this line to it
session required pam_limits.so
# logout and login and try the following command
user@ubuntu:~$ ulimit -n
65535
reboot
Best regards,
Alex
-----Ursprüngliche Nachricht-----
Von: Maxim Solodovnik <[email protected]>
Gesendet: Dienstag, 17. November 2020 09:52
An: Openmeetings user-list <[email protected]>
Betreff: Re: optimize performance
I would expect: the stability will be improved :)
On Tue, 17 Nov 2020 at 15:39, Ninnig, Alexander
<[email protected]
<mailto:[email protected]> > wrote:
Hi Maxim,
alright, no „fs.file-max“, but all the rest. Did it. Let’s see, i fit
positively affects the performance.
Best regards,
Alex
Von: Maxim Solodovnik <[email protected] <mailto:[email protected]> >
Gesendet: Montag, 16. November 2020 16:02
An: Openmeetings user-list <[email protected]
<mailto:[email protected]> >
Betreff: Re: optimize performance
On Mon, 16 Nov 2020 at 21:00, Ninnig, Alexander
<[email protected]
<mailto:[email protected]> > wrote:
Hello Maxim.
I did this here in order to permanently set the value to 65535:
https://medium.com/@muhammadtriwibowo/set-permanently-ulimit-n-open-files-in-ubuntu-4d61064429a
After a reboot, the server displays the increased value after I enter the
command:
su nobody --shell /bin/bash --command "ulimit -n"
è 65535
Here’s the description of how to increase the values, according to the website
mentioned above:
# To increase the available limit to say 65535
user@ubuntu:~$ sudo vim /etc/sysctl.conf
# add the following line to it
fs.file-max = 65535
# run this to refresh with new config
user@ubuntu:~$ sudo sysctl -p
I wouldn't do the changes above
Ubuntu 20.04 has
fs.file-max = 9223372036854775807
by default
no need to decrease :))
below commands are correct
this is the way I'm also using :))
# edit the following file
user@ubuntu:~$ sudo vim /etc/security/limits.conf
# add following lines to it
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
root soft nproc 65535
root hard nproc 65535
root soft nofile 65535
root hard nofile 65535
# edit the following file
user@ubuntu:~$ sudo vim /etc/pam.d/common-session
# add this line to it
session required pam_limits.so
# logout and login and try the following command
user@ubuntu:~$ ulimit -n
65535
Von: Maxim Solodovnik <[email protected] <mailto:[email protected]> >
Gesendet: Donnerstag, 12. November 2020 16:35
An: Openmeetings user-list <[email protected]
<mailto:[email protected]> >
Betreff: Re: optimize performance
It displays current value
from mobile (sorry for typos ;)
On Thu, Nov 12, 2020, 22:16 Ninnig, Alexander
<[email protected]
<mailto:[email protected]> > wrote:
Hi,
uhm, ok, so it seems like my command didn’t really change anything but just
displayed the default-value?
Best regards,
Alex
Von: Maxim Solodovnik <[email protected] <mailto:[email protected]> >
Gesendet: Donnerstag, 12. November 2020 13:50
An: Openmeetings user-list <[email protected]
<mailto:[email protected]> >
Betreff: Re: optimize performance
1024 is the default
and it seems to be not enough for 1 room with 5 users ....
On Thu, 12 Nov 2020 at 19:16, Ninnig, Alexander
<[email protected]
<mailto:[email protected]> > wrote:
Hi,
ok, got it. Ubuntu Server cannot use „root“, unless you activate it by setting
a password.
So I typed sudo root passwd and set a password.
Still, su nobody --shell /bin/bash --command "ulimit -n" was asking for a
password, and it wasn’t root nor the password of my linux-user.
So I typed su and my new root-password. That worked.
After that, I could use the command su nobody --shell /bin/bash --command
"ulimit -n".
I got the response 1024, I hope that means all is well.
Never used „su“ before, always used „sudo“, so I just learned something new.
Best regards, let’s see if „ulimit“ changes the behaviour.
Alex
Von: Maxim Solodovnik <[email protected] <mailto:[email protected]> >
Gesendet: Donnerstag, 12. November 2020 10:08
An: Openmeetings user-list <[email protected]
<mailto:[email protected]> >
Betreff: Re: optimize performance
On Thu, 12 Nov 2020 at 16:05, Ninnig, Alexander
<[email protected]
<mailto:[email protected]> > wrote:
Hello Maxim,
sorry to bother again, but i wanted to check out this „ulimit“-option, since it
looks promising to me.
Unfortunately I don’t seem to get it; I always get „su: Authentication failure“
after the command: su nobody --shell /bin/bash --command "ulimit -n"
`su` is a way to run command as different user
it works as `sudo`
to use it you need to authenticate yourself i.e. enter your current Linux
password
I am using username/password from the configuration file (sudo nano
/opt/open501/webapps/openmeetings/WEB-INF/classes/applicationContext.xml;
turnUser:userpassword) – copy & paste, so there can’t be a typo.
Now, I am kind of stumped here.
It should be username/password from the applicationContext.xml, right?
this is the user/password for TURN, I doubt you can use it
Best regards,
Alex
Von: Maxim Solodovnik <[email protected] <mailto:[email protected]> >
Gesendet: Donnerstag, 12. November 2020 03:43
An: Openmeetings user-list <[email protected]
<mailto:[email protected]> >
Betreff: Re: optimize performance
Hello Alex,
On Wed, 11 Nov 2020 at 19:57, Ninnig, Alexander
<[email protected]
<mailto:[email protected]> > wrote:
Hello,
again, I have to say, that I really like OpenMeetings 5. When using OM5
inhouse, everything works really well. The webcam-picture is extremely sharp
and fluent.
Problem is: because of Covid19, a lot of our employees are working from their
home and they don't have the best internet-bandwith (and sometimes, they don't
know it and blame the system).
Using OM5 with people who are working from home seems to be a little bit more
unstable, than OM4.
Somehow I guess, that OM5 transmits more data than OM4.
So when using OM5, people get constantly disconnected from the media server.
Please ensure ulimit for the user who run OM/KMS/TURN on server
since "everything is a file" it should be possible to open lot's of files
here is an example command
`su nobody --shell /bin/bash --command "ulimit -n"`
Except for the webcam-videosize: is there anything more I can do to decrease
the transmitted data?
Can I reduce the framerate?
you can try cam.fps (Admin->Config
https://openmeetings.apache.org/GeneralConfiguration.html)
Can I activate some sort of higher compression?
unfortunately browser will "auto-deside" all these parameters and we can only
_try_to_change_anything_
Best regards,
Alex
--
Best regards,
Maxim
--
Best regards,
Maxim
--
Best regards,
Maxim
--
Best regards,
Maxim
--
Best regards,
Maxim
