Thanks Steve
 
 
As mentioned below I had actually implemented the TcpTimedWaitDelay
parameter prior to this problem we encounter.
 
Appreciated
 
Dave
 

________________________________

From: Steve [mailto:nbu.admin at gmail.com] 
Sent: 30 October 2006 21:39
To: Dyck, Jonathan
Cc: Clooney, David; veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] CLOSE_WAIT


Sorry, fat fingers.
 
http://support.microsoft.com/kb/q120642/
 
TcpTimedWaitDelay is the value that should help you close those sockets
faster. I have to run to a meeting but will try to send more info later.

 
On 10/30/06, Steve <nbu.admin at gmail.com> wrote: 

        Here is some info from Microsoft that I reference often.
        


         
        On 10/30/06, Dyck, Jonathan <Jonathan.Dyck at cognos.com > wrote: 

                I'm also interested in this topic.  My "netstat -a"
looked the same as
                yours last week David. 
                
                Last week I ran into an issue where (what I think was..)
some security
                scans on my network for TCP traffic tied up a certain
number of ports on
                my W2k3 master and some NBU processes were unable to
interact reliably. 
                Four levels of support were unable to suitably explain
the problem to
                me, and all we ended up doing was throwing in a TCP wait
delay into the
                registry,  which "worked" with middling success.  The
issue has since 
                disappeared (mysteriously) - as I assume whatever
activity that was
                happening over those couple of days has since stopped.
                
                Cheers,
                Jon
                
                
                
                -----Original Message-----
                From: veritas-bu-bounces at mailman.eng.auburn.edu
                [mailto:veritas-bu-bounces at mailman.eng.auburn.edu ] On
Behalf Of Clooney,
                David
                Sent: Monday, October 30, 2006 5:44 AM 
                To: veritas-bu at mailman.eng.auburn.edu 
                Subject: [Veritas-bu] CLOSE_WAIT
                
                Hi All
                
                Scenario :
                
                Master server Solaris 8
                Media server windows 2000 
                
                Over the past weekend we encountered a whole bunch of
219's on jobs
                using a particular media server, a netstat on the media
server provided 
                the below snapshot. The CLOSE_WAIT entries seemed to
hang around for 
                ages, additionally hogging sockets. On the master server
everything was
                plodding along as usual.
                
                Q1. can anyone explain why these sockets on the media
server do not 
                close fully and hang around for quite sometime ? If
indeed the master 
                server has not
                   finalised comms, what (on the master) would be
keeping the socket
                open between the two.
                
                Q2. Does anyone know the default setting for the maximum
number of 
                simultaneous tcp connections on windows 2000? 
                
                Q3. If I was to add the registry key to tcp parameters
                "TcpNumConnections" , what guidelines could I follow to
determine the
                number of connections ? 
                
                Q4. Not so long ago on the same windows media server I
added the 
                registry key to tcp parameters "TcpTimedWaitDelay" in
order to clear
                TIME_WAIT more
                   quickly. Are there any known issues with windows 2000
and tcp 
                connections that I'm not aware off ?
                
                Much appreciated 
                
                David Clooney
                
                
                TCP    media_server:bpcd       media_server:795
ESTABLISHED
                TCP    media_server:bpcd       media_server:834
ESTABLISHED 
                TCP    media_server:bpcd       media_server:868
CLOSE_WAIT 
                TCP    media_server:bpcd       media_server:991
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:551
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:562
CLOSE_WAIT 
                TCP    media_server:bpcd       master_server:591
CLOSE_WAIT 
                TCP    media_server:bpcd       master_server:610
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:645
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:696
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:768
CLOSE_WAIT 
                TCP    media_server:bpcd       master_server:807
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:829
CLOSE_WAIT 
                TCP    media_server:bpcd       master_server:830
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:867
CLOSE_WAIT 
                TCP    media_server:bpcd       master_server:904
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:919
ESTABLISHED
                TCP    media_server:bpcd       master_server:976
ESTABLISHED
                TCP    media_server:bpcd       master_server:982
CLOSE_WAIT
                TCP    media_server:bpcd       master_server:1008
ESTABLISHED 
                TCP    media_server:bpcd       master_server:1023
ESTABLISHED
                
                
                
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