环境：

RHEL7，tomcat7.0.70

问题：

启动tomcat时，catalina.out日志打印到如下内容就停止不动了，也不报错

SEVERE: FarmWarDeployer can only work as host cluster subelement!

Dec ,  :: PM org.apache.catalina.startup.HostConfig deployWAR

INFO: Deploying web application archive /app/apache-tomcat-7.0./webapps/ROOT.war

Dec ,  :: PM org.apache.catalina.startup.TldConfig execute

INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

根本原因是Jar包检查TLD标签没有通过，解决办法是删除 conf/catalina.properties中的部分内容

org.apache.catalina.startup.TldConfig.jarsToSkip=XXX.jar,XXXX.jar

修改为如下：

org.apache.catalina.startup.TldConfig.jarsToSkip=

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