Re: [HTCondor-users] Understand the working of condor_shared_port

[Todd L Miller <tlmiller@xxxxxxxxxxx>]

> After reading documentation [1] it's clear that we are using the
> condor_shared_port daemon to optimize TCP connections established by condor
> jobs.

	All that the shared port daemon is does is reduce the number of 
ports which must be open in the firewall.  The number of TCP connections 
is unchanged.

> I started a batch of 20 jobs but I still see condor_shadow processes
> establishing TCP connection with remote nodes.

	This is as expected.  The only thing shared port does is make sure 
that all of the destination ports are the same.  To be clear: the shared 
port daemon does NOT multiplex TCP streams.  Each connection still 
requires an ephemeral port.

- ToddM