Performance issue with mod_proxy

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Running Apache/Tomcat under OpenVMS.  I've enclosed the config for the proxy from httpd.conf below.  In the debug trace (I've attached more below) I've done three different tests since enabling debug and have always come up with 20 seconds (exactly) between these two debug statements (found them in mod_proxy_httpd.c).  Wondering what may cause this delay?  And how to eliminate?
 
Thank you in advance for any help you can provide.
 
-David Kramer
 
[Sat Sep 08 20:52:44 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(884): proxy: start body send
[Sat Sep 08 20:53:04 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(943): proxy: end body send

 
#
# Utilize MOD_PROXY to redirect requests to root jsp
#
ProxyRequests On
 
<Proxy *>
  Order deny,allow
  Allow from all
</proxy>
 
ProxyPass  /webapp/PartStore20/B160/DBSPartStoreServlet http://localhost:8080/fabcoparts/servlet/PartStore
ProxyPassReverse  /webapp/PartStore20/B160/DBSPartStoreServlet  http:/localhost:8080/fabcoparts/servlet/PartStore
 
<Location />
  Order allow,deny
  Allow from all
</Location>
 
 

[Sat Sep 08 20:51:24 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:25 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:26 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:26 2007] [notice] Apache/2.0.52 (OpenVMS) configured -- resuming normal operations
[Sat Sep 08 20:51:26 2007] [info] Server built: Oct 26 2005 10:04:50
[Sat Sep 08 20:51:26 2007] [debug] HTTPD_SERVER_ROOT:[000000]prefork.c;1(2416): AcceptMutex: vmsdlm (default: flock)
[Sat Sep 08 20:51:27 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:27 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:27 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:27 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:27 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:28 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:28 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:28 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:51:28 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(66): proxy: HTTP: canonicalising URL //localhost:8080/fabcoparts/servlet/PartStore
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]mod_proxy.c;1(416): Trying to run scheme_handler
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(1049): proxy: HTTP: serving URL http://localhost:8080/fabcoparts/servlet/PartStore
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(185): proxy: HTTP connecting http://localhost:8080/fabcoparts/servlet/PartStore to localhost:8080
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_util.c;2(1138): proxy: HTTP: fam 2 socket created to connect to lo
calhost
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(334): proxy: socket is connected
[Sat Sep 08 20:52:41 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(368): proxy: connection complete to 127.0.0.1:8080 (local
host)
[Sat Sep 08 20:52:42 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:52:43 2007] [info] mod_unique_id: using ip addr 10.3.128.12
[Sat Sep 08 20:52:44 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(884): proxy: start body send
[Sat Sep 08 20:53:04 2007] [debug] HTTPD_PROXY_ROOT:[000000]proxy_http.c;1(943): proxy: end body send
[Sat Sep 08 20:54:21 2007] [info] Parent received control message to shutdown
[Sat Sep 08 20:54:21 2007] [info] Child 0 received control message to shutdown
[Sat Sep 08 20:54:21 2007] [info] Child 1 received control message to shutdown
[Sat Sep 08 20:54:21 2007] [info] Child 2 received control message to shutdown
[Sat Sep 08 20:54:21 2007] [info] Child 3 received control message to shutdown
[Sat Sep 08 20:54:21 2007] [info] Child 4 received control message to shutdown
[Sat Sep 08 20:54:21 2007] [info] Child 5 received control message to shutdown
[Sat Sep 08 20:54:22 2007] [notice] caught SIGTERM, shutting down
[Sat Sep 08 20:54:22 2007] [info] removed PID file /apache$root/000000/logs/httpd.pid (pid=21690)


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