Re: [Testbed-admins] pcapper not listening...

[Mike Hibler <mike@flux.utah.edu>]

In fact, we did recently see this.  You can download:

  http://www.emulab.net/downloads/pcapper.diff

The relevant part of the patch is this:

        /*
         * Create a socket to listen on, so that we can tell remote
         * applications about the counts we're getting.
         */
-       proto = getprotobyname("TCP");
-       sock = socket(AF_INET,SOCK_STREAM,proto->p_proto);
+       sock = socket(AF_INET, SOCK_STREAM, 0);

which gets rid of the call to getprotobyname (yes, it is hanging in there).
Let me know if the patch works for you.

On Mon, Nov 23, 2009 at 04:31:08PM -0600, Eric Hall wrote:
> When using link tracing in a very simple exp, pcapper doesn't appear to 
> be listening on the specified port on the tbsdelay node.
> 
> Tracing appears to be working as there are capture logs in /local/logs, 
> and control (pause/restart) of the tracing appears to work as state is 
> updated in appropriate /var/emulab/logs/trace_link0-*.debug files
> 
> But examining the log files via the web interface results in "Error 
> opening pc3/4443 - " messages and netstat -an on the tbsdelay node 
> doesn't show anything listening on port 4443.
> 
> Has anyone seen this before?  Any thoughts on what to check?
> 
> Any info appreciated,
> --
> Eric



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