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Posted to user@openmeetings.apache.org by kaffeesurrogat <ka...@posteo.de> on 2020/06/02 14:12:43 UTC

Upload to whiteboard, connection lost ....

Hy Nelson,

i've changed the subject. Cause I guess this is not related to TasksMax.

Please check your catalina.out in om installation dir ....  Might be
that libreoffice doesn't like you .... or the config file

/etc/ImageMagick-6/policy.xml

is not set correctly. Did you follow the installation guide from ...


https://cwiki.apache.org/confluence/display/OPENMEETINGS/Tutorials+for+installing+OpenMeetings+and+Tools


Alvaro does mention how to setup this file ....


If things fail due to ImageMagick lacking some memory, it should be
mentioned in the log. you can change some lines in policy.xml

<policy domain="resource" name="memory" value="1024MiB"/>

<policy domain="resource" name="disk" value="50Gi>


I hope that I remember that one right, I did some experiments with those values, thus you can choose them differently. The disk value is kind of high.

Please pardon my sound half knowledge .... 

Have fun,

kaffeesurrogat


On 02/06/2020 15:36, Nelson Gomez wrote:
> Hello Maxin, I hope you are very well.
>
> Maxin, *I'm using OM Last Version OM5.0.0-M5 on ubuntu 18.04 LTS on
> VP*S. When I upload file to whiteboard, a file with size 1mb, its do
> crash. 
> I try refresh my webpage but  This site can’t be reached. *In some
> cases the cpu reach to 100% and the files size max is 2mb*
> image.png
> I modified "TasksMax=infinity" but the problems continues. Do you can
> give me some ideas?
>
> Regards,
> Nelson
> Mailtrack
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> 02/06/20 08:33:00 	
>
>
> El mar., 2 jun. 2020 a las 0:59, kaffeesurrogat
> (<kaffeesurrogat@posteo.de <ma...@posteo.de>>) escribió:
>
>     Thanks Maxim for your work and patience
>
>     On 02/06/2020 03:39, Maxim Solodovnik wrote:
>     > Thanks for report!
>     >
>     > I have added "TasksMax=infinity" to the default openmeetings.service
>     > (any number might be exhausted if more users will enter)
>     >
>     > On Sun, 31 May 2020 at 21:21, kaffeesurrogat
>     <kaffeesurrogat@posteo.de <ma...@posteo.de>
>     > <mailto:kaffeesurrogat@posteo.de
>     <ma...@posteo.de>>> wrote:
>     >
>     >     Hello Everybody,
>     >
>     >     i found some time to fiddle around with openmeetings. Did a
>     fresh
>     >     install of OM5.0.0-M5 Snapshot revision c5c0381 on ubuntu 18.04
>     >     LTS on VPS.
>     >
>     >     In the beginning users lost their connections to the server
>     and had to
>     >     relogin. I used
>     >
>     >     watch -n 1 systemctl status openmeetings
>     >
>     >     to check the number of threads openmeetings is using. The
>     upper limit
>     >     was set to 165 which was quickly reached by turning the cam
>     or mic on
>     >     and off.
>     >
>     >     I've modified the file openmeetings.service from Maxim which i
>     >     copied to
>     >     /etc/systemd/system/openmeetings.service to start
>     openmeetings ....
>     >
>     >     The file looks like this right now:
>     >
>     >   
>      ---------------------------------------------------------------------------------
>     >
>     >     ##############################################
>     >     # Licensed under the Apache License, Version 2.0 (the
>     "License");
>     >     # you may not use this file except in compliance with the
>     License.
>     >     # You may obtain a copy of the License at
>     >     #
>     >     #     http://www.apache.org/licenses/LICENSE-2.0
>     >     #
>     >     # Unless required by applicable law or agreed to in writing,
>     software
>     >     # distributed under the License is distributed on an "AS IS"
>     BASIS,
>     >     # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
>     express or
>     >     implied.
>     >     # See the License for the specific language governing
>     permissions and
>     >     # limitations under the License.
>     >     ##############################################
>     >
>     >     # /etc/systemd/system/openmeetings.service
>     >     # sudo systemctl daemon-reload
>     >     # sudo systemctl restart openmeetings
>     >
>     >     [Unit]
>     >     Description=Apache OpenMeetings server
>     >     After=network.target
>     >
>     >     [Service]
>     >     Type=forking
>     >
>     >     Environment=JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
>     >     Environment=CATALINA_PID=/var/run/openmeetings.pid
>     >     WorkingDirectory=/opt/open505
>     >     Environment=CATALINA_HOME=/opt/open505
>     >     Environment=CATALINA_BASE=/opt/open505
>     >     Environment='CATALINA_OPTS=-Xms1G -Xmx15G -server
>     -XX:+UseParallelGC'
>     >     Environment='JAVA_OPTS=-Djava.awt.headless=true
>     >     -Djava.security.egd=file:/dev/./urandom'
>     >
>     >     ExecStart=/opt/open505/bin/startup.sh
>     >     ExecStop=/opt/open505/bin/shutdown.sh
>     >
>     >     User=kurento
>     >     Group=nogroup
>     >     UMask=0007
>     >     RestartSec=10
>     >     Restart=always
>     >
>     >     TasksMax=500
>     >
>     >     [Install]
>     >     WantedBy=multi-user.target
>     >
>     >   
>      ---------------------------------------------------------------------------------
>     >
>     >     I've added the line TasksMax=500. Using
>     >
>     >     watch -n 1 systemctl status openmeetings
>     >
>     >     again, I could see, that the number of tasks  mounts up to 200
>     >     until it
>     >     lowers to something like
>     >     100 again ...
>     >
>     >     Did help, connections now stable ...
>     >
>     >
>     >     catalina.out:
>     >
>     >     ERROR 05-30 21:48:34.407 o.a.o.c.u.WebSocketHelper:77
>     [Thread-1666] -
>     >     Error while sending message to client
>     >     java.lang.OutOfMemoryError: unable to create native thread:
>     >     possibly out
>     >     of memory or process/resource limits reached
>     >
>     >     ERROR 05-30 21:59:10.135 o.a.o.c.u.WebSocketHelper:64
>     [Thread-1213] -
>     >     Error while sending binary message to client
>     >     java.io.IOException: java.io.EOFException
>     >
>     >     354,835s][warning][os,thread] Failed to start thread -
>     pthread_create
>     >     failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 0k,
>     >     detached.
>     >     [354,836s][warning][os,thread] Failed to start thread -
>     pthread_create
>     >     failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 0k,
>     >     detached.
>     >
>     >
>     >     30-May-2020 22:12:08.880 SCHWERWIEGEND
>     [https-jsse-nio-5443-exec-3]
>     >     org.apache.coyote.AbstractProtocol$ConnectionHandler.process
>     >     Verarbeitung der Anfrage fehlgeschlagen
>     >             java.lang.OutOfMemoryError: unable to create native
>     thread:
>     >     possibly out of memory or process/resource limits reached
>     >
>     >     Have fun and a happy weekend,
>     >
>     >     Kaffeesurrogat
>     >
>     >
>     >
>     >
>     >
>     >
>     >
>     >
>     >
>     > --
>     > Best regards,
>     > Maxim
>
>
>
> -- 
> A la espera de su valiosa respuesta, se despide,
>
>
> 	
>
> Nelson Gomez
> Gerente General
> Develop & Design C.A
> +58 414-6096796
> http://www.develop-design.com.ve <http://www.develop-design.com.ve/> 
>