[one-users] noVNC error: "Server disconnected" [socket.error: [Errno 98] Address already in use] ?

[biro lehel]

Hello Hector,

I'm using OpenNebula 3.2.0 (downloaded the package) on openSUSE 11.4 (front-end), having Firefox 4.0b12. The respective host runs openSUSE 12.1 and KVM.

I will try to kill wsproxy manually next time the error occurs, and see if it works. Until then, any other solutions are more than welcomed.

Cheers,
Lehel.

--- On Sat, 3/31/12, Hector Sanjuan <hsanjuan at opennebula.org> wrote:

From: Hector Sanjuan <hsanjuan at opennebula.org>
Subject: Re: [one-users] noVNC error: "Server disconnected" [socket.error: [Errno 98] Address already in use] ?
To: users at lists.opennebula.org
Date: Saturday, March 31, 2012, 12:51 PM

Hello,

which version of OpenNebula are you using?

It looks like wsproxy process is not conveniently terminated after closing the connection. A more convinient workaround would be to kill the wsproxy process in the frontend manually I guess.

I have opened a ticket to keep track of this and see if I can reproduce it as well. http://dev.opennebula.org/issues/1201

Hector

En Sat, 31 Mar 2012 11:24:44 +0200, biro lehel <lehel.biro at yahoo.com> escribió:

> Hello,
> 
> I seem to have a noVNC-related issue. From time-to-time, I get a "Server disconnected" error, when accessing my VM's through VNC. I've noticed that it usually (only) happens when I was previously connected to that specific VM (for which the error occurs) through VNC for an extended period of time (but not more than 10-15 minutes), closed the connection, and then tried to reconnect (this is where I get the error). It never happened (so far) in situations other than this, if the VNC-connections are short-termed in time, I can close and reconnect to VM's through VNC as many times as I want.
> 
> The only workaround I've found so far is rebooting both the front-end and the respective host, which, as you can imagine, is rather inconvenient to do each time this error occurs.
> 
> sunstone.log contains the following about the
>  error:
> 
> Starting vnc proxy: /usr/share/one/noVNC/utils/wsproxy.py 35822 pcls:5946
> /usr/lib/one/sunstone/models/SunstoneServer.rb:234: warning: Insecure world writable dir /usr/X11R6/bin in PATH, mode 040777
> 127.0.0.1 - - [31/Mar/2012 12:08:17] "POST /vm/46/startvnc HTTP/1.1" 200 30 0.1036
> 127.0.0.1 - - [31/Mar/2012 12:08:17] "GET /vendor/jQueryUI/images/ui-bg_glass_55_fbf9ee_1x400.png HTTP/1.1" 200 120 0.0116
> Traceback (most recent call last):
>   File "/usr/share/one/noVNC/utils/wsproxy.py", line 282, in <module>
>     server.start_server()
>   File "/usr/share/one/noVNC/utils/websocket.py", line 794, in start_server
>     lsock = self.socket(self.listen_host, self.listen_port)
>   File "/usr/share/one/noVNC/utils/websocket.py", line 185, in socket
>     sock.bind(addrs[0][4])
>   File "/usr/lib64/python2.7/socket.py", line 222, in meth
>    return getattr(self._sock,name)(*args)
> socket.error: [Errno 98] Address already in use
> 127.0.0.1 - - [31/Mar/2012 12:08:32] "POST /vm/46/stopvnc HTTP/1.1" 200 - 0.0856
> 
> Since I'm not an expert in Python, I didn't want to dig myself into the above-named files so far.
> 
> Any ideas what should I check, or what should I do?
> 
> Thank you,
> Lehel.


--Hector Sanjuan
OpenNebula Developer
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