This is our main public web server. We routinely have more than 10
connections. The limit we're hitting seems only to affect the connection
between IIS and Tomcat.
I don't think IIS 6 has the same slider as IIS 5 did for this. However, I
have verified that I have connection limits set to 'unlimited' at both the
global and site levels.
----- Original Message -----
From: "Frank W. Zammetti" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[email protected]>
Cc: "Tomcat Users List" <[email protected]>
Sent: Wednesday, August 24, 2005 3:31 PM
Subject: Re: 10 connection limit with IIS and JK/ISAPI 1.2.14
If memory serves, IIS defaults to a 10 connection maximum. You need to go
into the admin console and move the pretty slider over :)
Also if memory serves, there is a hard 10 connection limit for the
non-server versions, but that doesn't apply here apparently.
--
Frank W. Zammetti
Founder and Chief Software Architect
Omnytex Technologies
http://www.omnytex.com
On Wed, August 24, 2005 4:28 pm, David Boyer said:
is is fairly common with non-server version of IIS, but that's by design.
I'm using Windows Server 2003 Enterprise. Thanks.
----- Original Message -----
From: "Jay Burgess" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, August 24, 2005 3:19 PM
Subject: RE: 10 connection limit with IIS and JK/ISAPI 1.2.14
I don't really have an answer for you, but Google'ing "iis 10 connection
limit"
returns a lot of hits. It looks like a fairly common question/issue.
Maybe
it'll help.
Jay
| Jay Burgess [Vertical Technology Group]
| "Essential Technology Links"
| http://www.vtgroup.com/
-----Original Message-----
From: David [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 24, 2005 3:09 PM
To: [email protected]
Subject: 10 connection limit with IIS and JK/ISAPI 1.2.14
I'm using Tomcat 5.5.9 on Windows Server 2003, JDK 1.5.0_04, IIS 6.0,
with
the
JK 1.2.14 isapi_redirector.dll.
I've been trying to track down a problem whereby all of the web apps
under
our
Tomcat instance are seeming to stall. There's no indication of any
problems in
the Tomcat logs themselves. I suspect IIS is unable to forward requests
to
Tomcat. I either have to recycle the IIS worker process or restart
Tomcat
to
resolve the problem.
Here's what I'm seeing with netstat (port 8008 is my AJP 1.3 port):
Z:\>netstat -a -n | grep 8008
TCP 0.0.0.0:8008 0.0.0.0:0 LISTENING
TCP 147.92.2.137:2871 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:2915 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:2944 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:2965 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:2969 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:3019 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:3034 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:3039 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:3041 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:3060 147.92.2.137:8008 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:2871 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:2915 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:2944 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:2965 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:2969 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:3019 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:3034 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:3039 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:3041 ESTABLISHED
TCP 147.92.2.137:8008 147.92.2.137:3060 ESTABLISHED
Every time the stall has happened, I have noticed that there are always
exactly
ten connetions between IIS and Tomcat (they're on the same server).
Everything
works fine until we reach this point.
In my JK log, I'm seeing things like this:
[Wed Aug 24 14:10:57 2005] [error]
ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
response message from tomcat, network problems or tomcat is down
(147.92.2.137:8008), err=-54
[Wed Aug 24 14:10:57 2005] [error] ajp_get_reply::jk_ajp_common.c
(1503):
Tomcat
is down or refused connection. No response has been sent to the client
(yet)
My workers.properties looks like this:
worker.list=ajp13a
worker.ajp13a.port=8008
worker.ajp13a.host=www.bvu.edu
worker.ajp13a.type=ajp13
cachesize=20
cache_timeout=600
recycle_timeout=300
And here's the AJP connection defininition from my server.xml:
<Connector port="8008"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="443" debug="5"
connectionTimeout="20000"
protocol="AJP/1.3"/>
Any idea what might be happening? It sure looks like I'm hitting some
kind
of 10
connection limit somewhere, but I can't seem to figure out where.
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