RE: support for identifying a client

[<jam...@di...>]

Hi

Snooping initial channel connect requests is easy if the client is using UDP broadcast, we use that to check for requests to non-existent channels. I'd like to be able to log all puts but I think you would have to have a put log running on the server as you can't snoop on the TCP connection unless you are on the same switch port as the server.

James
________________________________________
From: White, Greg [gr...@sl...]
Sent: 15 February 2012 20:01
To: epi...@li... Developers
Subject: support for identifying a client

Hi, we have a fairly frequent problem at SLAC that AIDA doesn't give much help on, but it
should. Often someone, usually a physicist, has written some long running process and it's
doing something weird. Either the operation is just bad physics, or it's banging on an IOC,
or something else - you know.

We always want to identify the culprit. AIDA does report all failing operations in a log,
but since this log is the union of all process logs, it gets 10,000 msgs per hour, so
inspecting it is a pain. Also, sometimes there was no error error in the control system
sense.

So, what I really want is a pvsnooper, which I can ask, "who is asking for this pv?"

Is such a tool easy to produce, or hard?

Cheers
Greg




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