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Posted to user@openmeetings.apache.org by kaffeesurrogat <ka...@posteo.de> on 2020/05/31 14:13:40 UTC
Upper limit of Threads
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
Upload to whiteboard, connection lost ....
Posted by kaffeesurrogat <ka...@posteo.de>.
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
> <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> Sender notified by
> Mailtrack
> <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> 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/>
>
Re: Upper limit of Threads
Posted by Maxim Solodovnik <so...@gmail.com>.
Can you share the logs?
On Tue, 2 Jun 2020 at 20:36, Nelson Gomez <ng...@gmail.com> 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: image.png]
> I modified "TasksMax=infinity" but the problems continues. Do you can
> give me some ideas?
>
> Regards,
> Nelson
> [image: Mailtrack]
> <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> Sender
> notified by
> Mailtrack
> <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> 02/06/20
> 08:33:00
>
> El mar., 2 jun. 2020 a las 0:59, kaffeesurrogat (<ka...@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>> 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
>
--
Best regards,
Maxim
Re: Upper limit of Threads
Posted by Nelson Gomez <ng...@gmail.com>.
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: image.png]
I modified "TasksMax=infinity" but the problems continues. Do you can give
me some ideas?
Regards,
Nelson
[image: Mailtrack]
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
Sender
notified by
Mailtrack
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
02/06/20
08:33:00
El mar., 2 jun. 2020 a las 0:59, kaffeesurrogat (<ka...@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>> 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
Re: Upper limit of Threads
Posted by kaffeesurrogat <ka...@posteo.de>.
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>> 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
Re: Upper limit of Threads
Posted by Maxim Solodovnik <so...@gmail.com>.
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 <ka...@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