The protocol displays as "Unknown" in tcserver command

Products

• VMware Tanzu tc Server

Issue/Introduction

When a protocol attribute in connector insider server.xml is set as a variable, with value in catalina.properties as shown below, the properties are displayed as "Unknown". The tcserver instance is able to start successfully. However, the command output shows with "Unknown", which is misleading. 

david@E320:$ tc-server-10.1 info instance
Loading tc Server configuration properties from: /opt/tc-server/10.1/dist/tc-server-10.1.39.A/conf/tc-server-10.1.properties
  Instance Name:       instance                                               
  CATALINA_BASE:       /var/opt/tc-server/10.1/instances/instance             
  CATALINA_HOME:       /opt/tc-server/10.1/tc-runtimes/tc-runtime-10.1.39.A   
  JAVA_HOME:           /usr/lib/jvm/java-17-openjdk-amd64                     
  tc Runtime Version:  10.1.39.A                                              
  Unknown port:        8080                                                   
  Unknown secure:      false                                                  
  Unknown address:     undefined                                              
  Running Status:      Not running    

Cause

This issue happens when the protocol property is defined to refer to a variable.

protocol="${connector.protocol}"

This is an unexpected use case. The protocol attribute ought to be configured through a variable.

Resolution

It is recommended using a constant string instead as a workaround. Here is an example,

protocol="org.apache.coyote.http11.Http11AprProtocol" 

This issue will be fixed in the next tc Server 10.1.x and 11.0.x release.