general/1791: Server hangs when a socket is hung in a CLOSE_WAIT state

[Dave McComb <mc...@way.com>]

>Number:         1791
>Category:       general
>Synopsis:       Server hangs when a socket is hung in a CLOSE_WAIT state
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Wed Feb 11 22:30:00 PST 1998
>Last-Modified:
>Originator:     mccomb@way.com
>Organization:
apache
>Release:        1.2.5
>Environment:
SunOS fun.way.com 5.4 Generic_101945-27 sun4m sparc

gcc
>Description:
The server gets hung on a CLOSE_WAIT state and the entire server must be rebooted
to correct the problem.  Trying to start Apache gives httpd: could not bind to port 80.

netstat -a shows:

home.lookonline.com.80 ww-tr03.proxy.aol.com.42518 61320      0  8335      0 CLOSE_WAIT 
0469                 proxy-155.iap.bryant.webtv.net.40469  8760      0  8395      0 CLOSE_WAIT
9341                 proxy-165.iap.bryant.webtv.net.39341  8760      0  8377      0 CLOSE_WAIT
home.trivialpursuit.com.80 proxy7.idirect.com.2691 17520      0  8204      0 CLOSE_WAIT
home.mlm-mall.com.80 scooter.pa-x.dec.com.3210 33580      0  8580      0 CLOSE_WAIT
>How-To-Repeat:
problem recurs when a kill -HUP `cat httpd.pid` is issued.
>Fix:
no
>Audit-Trail:
>Unformatted:
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