<Valve className="org.apache.catalina.valves.AccessLogValve"
directory="/home/hadoop/tmp/log"
prefix="localhost_access_log." suffix=".txt" pattern="common"
fileDateFormat="yyyy-MM-dd.HH.mm.ss"
pattern="%h %1 %u %t "%r" %s %b" />
<role rolename="manager-gui"/>
<user username="maoxiao" password="maoxiao"/>