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 02, 2016 4:27:39 PM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive /app/apache-tomcat-7.0.73/webapps/ROOT.war Dec 02, 2016 4:27:43 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=
Tomcat7启动log打印到INFO: At least one JAR was scanned for TLDs yet contained no TLDs.就停止不动了
原文：http://www.cnblogs.com/zaqweb/p/6126733.html