чт, 11 июн. 2020 г. в 18:57, Alfred Bakia <alfredba...@uitgeverij-deviant.nl>: > > 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"/>
The packetSize has non-default value. The configuration reference [1] says that the same value should be configured on the other side as well, mentioning "max_packet_size" for mod_jk. I am not sure how that is done for IIS. [1] https://tomcat.apache.org/tomcat-9.0-doc/config/ajp.html > 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 Searching the sources, the code that writes it appears to be in native/common/jk_ajp_common.c https://github.com/apache/tomcat-connectors/blob/master/native/common/jk_ajp_common.c#L2117 It is triggered by a value of a "reuse flag" field in an "END_RESPONSE" packet. https://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html#End_Response At Tomcat side the END_RESPONSE packet is sent by AjpProcessor.finishResponse() and can send two kinds of an end response packet: one with a "reuse" flag value and another with a "no reuse". https://github.com/apache/tomcat/blob/9.0.x/java/org/apache/coyote/ajp/AjpProcessor.java#L104 https://github.com/apache/tomcat/blob/9.0.x/java/org/apache/coyote/ajp/AjpProcessor.java#L1049. If there is a severe error that does not allow reuse of the connection, the "no reuse" packet is sent. I wonder how you encounter such an error. Do you have an access log configured in Tomcat and what does it show? Best regards, Konstantin Kolinko --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
