[X2Go-User] nxagent

[Mario Theodoridis]

On 05/03/18 13:41, Mario Theodoridis wrote:
> On 04/03/18 09:44, Mihai Moldovan wrote:
>> * On 03/04/2018 01:54 AM, Robert Dinse wrote:
>>>        Yes consuming a large amount of CPU and not doing anything useful,
>>> customer is disconnected.  Connection is still possible but doesn't get rid
>>> of the stuck processes, I have to kill -9 to get rid of them.
>> Uhm... "stuck" is pretty ambiguous in that context - I assume that you are
>> referring to the CPU usage, which doesn't go down to sane levels even after
>> reconnecting, but reconnecting to the session as such is possible?
>>
>> Is there any reasonable way to trigger this behavior? Like starting a MATE
>> session, disconnecting and waiting for an hour to see the CPU usage spike? Or is
>> it triggered by other programs running inside of the session?
>>
>> I'll need something to reproduce it, server OS information would also be great.
> Oh, maybe some details
> Server:
>
> [mario at lindev 13:30:31 ~]$ dpkg -l | egrep "(x2go|nx)"
> ii  libjs-sphinxdoc 1.2.2+dfsg-1ubuntu1.1                        all 
> JavaScript support for Sphinx documentation
> ii  libnx-x11-6:i386 2:3.5.99.14-0~816~ubuntu14.04.1              i386 
> nxagent's libNX_X11 client-part library
> rc  libnx-xcomposite1:i386 
> 2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 
> Composite extension library
> rc  libnx-xdamage1:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 damaged region extension library
> rc  libnx-xdmcp6:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 Display Manager Control Protocol library
> rc  libnx-xext6:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 miscellaneous extension library
> rc  libnx-xfixes3:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 miscellaneous 'fixes' extension library
> rc  libnx-xinerama1:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 Xinerama extension library
> rc  libnx-xpm4:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 pixmap library
> rc  libnx-xrandr2:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 RandR extension library
> rc  libnx-xrender1:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 Rendering Extension client library
> rc  libnx-xtst6:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 Testing -- Record extension library
> ii  libx2go-log-perl 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          Perl X2Go::Log package
> ii  libx2go-server-db-perl 
> 4.1.0.0-0~1517~ubuntu14.04.1                 i386         Perl 
> X2Go::Server:DB package
> ii  libx2go-server-perl 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          Perl X2Go::Server package
> rc  libxcompext3:i386 2:3.5.0.33-0~710~ubuntu14.04.1               
> i386         nx-X11 protocol compression extensions library
> ii  nx-x11-common 2:3.5.99.14-0~816~ubuntu14.04.1              
> all          nx-X11 (common files)
> ii  nxagent 2:3.5.99.14-0~816~ubuntu14.04.1              i386         
> Nested Xserver (aka NX Agent) supporting the NX compression protocol
> ii  nxproxy 2:3.5.99.14-0~816~ubuntu14.04.1              i386         
> NX proxy
> ii  qtcreator-plugin-qnx:i386 
> 3.0.1+14.04.20140410.1-0ubuntu1              i386         QNX plugin 
> for Qt Creator IDE
> rc  x2goagent 2:3.5.0.33-0~710~ubuntu14.04.1               
> all          X2Go agent
> ii  x2goclient 4.1.1.1-0~1719~ubuntu14.04.1                 
> i386         X2Go Client application (Qt4)
> ii  x2goserver 4.1.0.0-0~1517~ubuntu14.04.1                 
> i386         X2Go server daemon scripts
> ii  x2goserver-common 4.1.0.0-0~1517~ubuntu14.04.1                 
> i386         X2Go Server (common files)
> ii  x2goserver-extensions 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          X2Go Server (extension support)
> ii  x2goserver-fmbindings 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          X2Go Server (file manager bindings)
> ii  x2goserver-printing 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          X2Go server (printing support)
> ii  x2goserver-x2goagent 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          X2Go Server's X2Go Agent
> ii  x2goserver-xsession 4.1.0.0-0~1517~ubuntu14.04.1                 
> all          X2Go Server (Xsession runner)
> [mario at lindev 13:38:15 ~]$ uname -a
> Linux lindev.de.regify.com 3.13.0-142-generic #191-Ubuntu SMP Fri Feb 
> 2 12:14:37 UTC 2018 i686 i686 i686 GNU/Linux
> [mario at lindev 13:38:32 ~]$ cat /etc/issue
> Ubuntu 14.04.5 LTS \n \l
>
> Client:
> [mario at fatty 13:40:25 ~]$ dpkg -l | egrep "(x2go|nx)"
> ii  libjs-sphinxdoc 1.2.2+dfsg-1ubuntu1.1 all          JavaScript 
> support for Sphinx documentation
> ii  libxcomp3:amd64 2:3.5.0.33-0~710~ubuntu14.04.1 amd64        nx-X11 
> compression library
> ii  nxproxy 2:3.5.0.33-0~710~ubuntu14.04.1 amd64        NX proxy
> ii  x2goclient 4.1.1.0-0~1679~ubuntu14.04.1 amd64        X2Go Client 
> application (Qt4)
> [mario at fatty 13:40:38 ~]$ uname -a
> Linux fatty 3.13.0-137-generic #186-Ubuntu SMP Mon Dec 4 19:09:19 UTC 
> 2017 x86_64 x86_64 x86_64 GNU/Linux
> [mario at fatty 13:40:48 ~]$ cat /etc/issue
> Ubuntu 14.04.5 LTS \n \l
It just happened a second time.
I seem to be able to repro this fairly well.

I am, BTW, not able to reconnect. It just connects and disconnects again.

-- 
Mit freundlichen Grüßen/Kind regards

Mario Theodoridis

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