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: <tomcat-user@jakarta.apache.org>
> 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: tomcat-user@jakarta.apache.org
>> 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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