[Tomcat] org.apache.catalina.LifecycleException: Protocol handler start failed

13-Jan-2022 14:37:35.458 SEVERE [main] org.apache.catalina.core.StandardService.startInternal Failed to start connector [Connector[AJP/1.3-8009]]
org.apache.catalina.LifecycleException: Protocol handler start failed
at org.apache.catalina.connector.Connector.startInternal(Connector.java:1101)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:439)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:763)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:688)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476)
Caused by: java.lang.IllegalArgumentException: The AJP Connector is configured with secretRequired="true" but the secret attribute is either null or "". This combination is not valid.
at org.apache.coyote.ajp.AbstractAjpProtocol.start(AbstractAjpProtocol.java:274)
at org.apache.catalina.connector.Connector.startInternal(Connector.java:1099)
... 12 more

server.xml 파일안에, AJP module 쪽 secretRequired 설정해야 합니다.
Tomcat 8.0 -> Tomcat 8.5로 올라가면서 추가해주어야 합니다.

# vi server.xml
<Connector port="8009" protocol="AJP/1.3" 
redirectPort="8443"
URIEncoding="UTF-8"
maxThreads="1000"
secretRequired="false"
minSpareThreads="50"
allowTrace="false" />

 

 

 

 

참고 : https://royzero.tistory.com/76