hadoop2.2.0 maprd-site.xml--jobhistory properties

<!-- jobhistory properties -->

<property>  <name>mapreduce.jobhistory.address</name>  <value>0.0.0.0:10020</value>  <description>MapReduce JobHistory Server IPC host:port</description></property>

注释：历史作业ipc的ip端口。

<property>  <name>mapreduce.jobhistory.webapp.address</name>  <value>0.0.0.0:19888</value>  <description>MapReduce JobHistory Server Web UI host:port</description></property>

 注释：历史作业的web端访问ip地址

<property>  <name>mapreduce.jobhistory.keytab</name>  <description>    Location of the kerberos keytab file for the MapReduce    JobHistory Server.  </description>  <value>/etc/security/keytab/jhs.service.keytab</value></property>

注释：

<property>  <name>mapreduce.jobhistory.principal</name>  <description>    Kerberos principal name for the MapReduce JobHistory Server.  </description>  <value>jhs/[e-mail]</value></property>

 注释：