Perhaps also compare your logging sensitivity between the servers.

Dream * Excel * Explore * Inspire
Jon McAlexander
Asst Vice President

Middleware Product Engineering
Enterprise CIO | Platform Services | Middleware | Infrastructure Solutions

8080 Cobblestone Rd | Urbandale, IA 50322
MAC: F4469-010
Tel 515-988-2508 | Cell 515-988-2508

This message may contain confidential and/or privileged information. If you are 
not the addressee or authorized to receive this for the addressee, you must not 
use, copy, disclose, or take any action based on this message or any 
information herein. If you have received this message in error, please advise 
the sender immediately by reply e-mail and delete this message. Thank you for 
your cooperation.

-----Original Message-----
From: Christopher Schultz <> 
Sent: Thursday, June 11, 2020 12:55 PM
Subject: Re: Warning "AJP13 protocol: Reuse is set to false" written logs every 
second of every day. Please help.

Hash: SHA256


On 6/11/20 11:57, Alfred Bakia wrote:
> Hi Everyone,
> This is my very first mail to the users list since joining yesterday. 
> Not an auspicious start. But I hope I will be able to contribute in 
> future. I seek your help for a persistent issue in one of our 
> ColdFusion instances.
> Description of issue: ColdFusion 2018 is an application server that 
> uses Tomcat 9.0.21. Our ColdFusion installation consists of instances. 
> The instances are independent application servers, each with its own 
> Tomcat installation and Java Virtual Machine. The Java version is 
> 11.0.7.
> Each ColdFusion instance serves web content via the web server IIS.
> We have configured an AJP connector for the communication between 
> Tomcat and IIS. The relevant settings are
> *   In server.xml
> <Connector port="8012" connectionTimeout="60000"
> redirectPort="8445" protocol="AJP/1.3" tomcatAuthentication="false"
> maxThreads="500" packetSize="65535"/>
> *   In
> iis_buffer_enable= true
> *   In
> worker.list=sr1studierdr1
> worker.sr1studierdr1.type=ajp13
> worker.sr1studierdr1.port=8012
> worker.sr1studierdr1.connection_pool_size=800
> worker.sr1studierdr1.connection_pool_timeout=60
> worker.sr1studierdr1.max_reuse_connections=400''
> On one of the instances (name: 'sr1studierdr1'), the following WARNING 
> is written to isapi_redirect.log every second or so:
> *   [Thu Jun 11 16:44:57.739 2020] [11308:15392] [warn]
> ajp_process_callback::jk_ajp_common.c (2242): (sr1studierdr1) AJP13
> protocol: Reuse is set to false
> Nevertheless, the application seems to work as intended.
> We're at a loss why this is happening only to this particular 
> instance. There are no such warnings in other instances that share 
> exactly the same settings.
> Do you know what is causing the warning, "AJP13 protocol: Reuse is set 
> to false", or how to solve this?

I have no idea, but Google seemed able to come up with this:

Does that help at all?

Apache httpd configuration of mod_jk has a DisableReuse flag that can be set, 
but I don't see such a thing for IIS.

- -chris
Comment: Using GnuPG with Thunderbird -


To unsubscribe, e-mail:
For additional commands, e-mail:

To unsubscribe, e-mail:
For additional commands, e-mail:

Reply via email to