严重: A child container failed during start
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严重: A child container failed during start
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前言
- tomcat 8.5
- jdk 1.8
严重: A child container failed during start
启动tomcat遇到错误 A child container failed during start。
问题原因
问题原因就是 A child container failed during start 。tomcat中的项目,就是 child container 。因此错误就是有项目启动失败了,至于是哪个,就自己分析吧。
项目启动失败的原因很多,但是只有 A child container failed during start 是 tomcat 抛出的(这句话的口气,就是tomcat的口气。即,还没进到项目中呢)。碰到这个错误的时候,查找那些与tomcat项目的解决办法就可以了。
我的问题是docBase指向的地址不存在(想将从其它服务器上移过来的tomcat先启动起来看看,但没把对应的项目移过来),如下:
<?xml version='1.0' encoding='utf-8'?> <Server port="1001" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /><!-- <Listener className="org.apache.catalina.core.JasperListener" /> --><Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /><Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /><Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /><GlobalNamingResources><Resource name="UserDatabase" auth="Container"type="org.apache.catalina.UserDatabase"description="User database that can be updated and saved"factory="org.apache.catalina.users.MemoryUserDatabaseFactory"pathname="conf/tomcat-users.xml" /></GlobalNamingResources><Service name="Catalina"><Connector port="1011" protocol="HTTP/1.1"connectionTimeout="20000"maxThreads="3000" minSpareThreads="250" acceptCount="2000" enableLookups="false" compression="on" URIEncoding="UTF-8"compressionMinSize="2048" noCompressionUserAgents="gozilla,traviata" compressableMimeType="text/html,text/xml,text/css,text/plain,text/javascript,application/x-javascript,application/javascript" /><Engine name="Catalina" defaultHost="localhost"><Realm className="org.apache.catalina.realm.LockOutRealm"><Realm className="org.apache.catalina.realm.UserDatabaseRealm"resourceName="UserDatabase"/></Realm><Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"xmlValidation="false" xmlNamespaceAware="false"><Context path="/" docBase="/data/htdocs/xxx_web" allowLinking="true" reloadable="false"privileged="true" ></Context> <!-- <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"prefix="localhost_access_log." suffix=".txt"pattern="%h %l %u %t "%r" %s %b" /> --></Host></Engine></Service> </Server> 与50位技术专家面对面20年技术见证,附赠技术全景图总结
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