freenx hangs

[Dmitry Melekhov]

Hello!

Our users use java based software on redhat  5.4  x86-64 server
connecting to this server with nxclient from windows machines.
Problem is that sometimes (and really often enough) their sessions
hungs, they see white screen, only way to solve this is to terminate
session and start new one. Session can be suspended, but after resume
they see only white screen.
Looks like software bug causes nx to hang. Unfortunately, I don't know
how to reproduce problem.
Could you tell me what can I do to solve this problem?

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[Mario Becroft]

Dmitry Melekhov <dm@...> writes:

> Hello!
>
> Our users use java based software on redhat  5.4  x86-64 server
> connecting to this server with nxclient from windows machines.
> Problem is that sometimes (and really often enough) their sessions
> hungs, they see white screen, only way to solve this is to terminate
> session and start new one. Session can be suspended, but after resume
> they see only white screen.
> Looks like software bug causes nx to hang. Unfortunately, I don't know
> how to reproduce problem.
> Could you tell me what can I do to solve this problem?

Does this happen only when runniing a certain program? If so, what is
it?

I suggest the following method of analysis: when a user's session is in
the frozen state, check the CPU usage of their nxagent on the NX server
host. Is it using 100% CPU? Also check the CPU usage of nxssh and the X
server on the NX client host.

Try killing the program that triggers the problem. Does the session
un-freeze? If not, is there any other change in the nxagent behaviour?

When the session is in the frozen state, run strace on it and obtain a
log of what it is doing. Analyse it or post it here.

--
Mario Becroft <mb@...>
________________________________________________________________
     Were you helped on this list with your FreeNX problem?
    Then please write up the solution in the FreeNX Wiki/FAQ:

http://openfacts2.berlios.de/wikien/index.php/BerliosProject:FreeNX_-_FAQ
 
         Don't forget to check the NX Knowledge Base:
                 http://www.nomachine.com/kb/ 

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       FreeNX-kNX mailing list --- FreeNX-kNX@...
      https://mail.kde.org/mailman/listinfo/freenx-knx
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