Re: Monitoring McKoi server with netstat - Linux

What is the state of those connections?  If the state is 'TIME_WAIT' 
then I believe it just means that the connection was killed on the 
client side which would be expected if your web server crashed.  The 
Linux server will clear those connections over time.

Toby.

[email protected] wrote:

> Hello:
> 
> I have a Mckoi server that it is being bombarded with connections from a
> servlet engine, since a few days ago, causing a 90% CPU consumption from
> McKoi and a lack of response, forcing to a server restart. I am not sure
> this is an attack via the web tier, because the hardware dedicated to the
> web tier has some performance and technical problems. The thing is that I
> am monitoring the connections to the McKoi box via "netstat -alpn", and
> when the problem arises, I can distinghish regular connections to the
> mckoi port, properly identified with the PID and Java program name, but
> there are also lots of connections lacking the PID + Program name column!
> These are originated by the servlet engine, I would like to know how is it
> possible that they are listed by netstat as connected to the McKoi port
> but the PID/Program name is missing?
> 
> Thanks a lot - Martin
> 
> ps: Toby, I "solved the mistery" of backups taking too long after the
> server restart, It turned out that the IBM's JIT was turned off in the
> startup script.
> 
> 
> 
> 
> 
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