On Jan 6, 2006, at 10:22 AM, Marc Krawitz wrote:
Listener is still running. I am running FOIA20051021.
Unfortunately, I cannot re-create the error message I received at
home (now connecting remotely from work). When I get home, I'll
provide the exact error message.
--Marc
Are you sure? The test Nancy recommended will only tell you if SOME
process is listening on the given port. There are a few complications
here: For one, [x]inetd works by listening for connections on a
number of ports. When it accepts a connection, it forks off a process
to run the appropriate "handler" (in our case, a MUMPS process) and
then it leaves the picture. In many cases, all the "handler" does is
read a request, send a reply, and then exit. That's it. But the RPC
Broker is different, it is sets up a single connection that can be
used for a potentially unbounded number of requests (RPCs) though a
series of interactions with the same client (much like telnet, SMTP
or HTTP/1.1). If the client does not shut down cleanly, the "handler"
will eventually time out, but how long does it wait? (As an aside:
this is not the only possible architecture, and perhaps not the ideal
one. An alternative would be to use "sessions" for one RPC only,
presumably with some type of a token for authentication and context
management. On a LAN, at least, I think using UDP would be
preferable, too, but for some reason, MUMPS implementations rarely,
if ever, seem to provide UDP support.) I looked at the code, and the
Broker listeners are shut down by sending special requests to the
appropriate port using the loopback address. So, attempting to shut
down will always "work", even if it doesn't do anything (except maybe
wake up the Broker)!
===
Gregory Woodhouse
[EMAIL PROTECTED]
"Good acts are like good poems. One may easily get their drift, but
they are not rationally understood."
--Albert Einstein
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