Hadoop 历史服务配置启动查看

历史服务配置启动查看

1)配置mapred-site.xml

<property>

<name>mapreduce.jobhistory.address</name>

<value>hadoop-001:10020</value>

</property>

<property>

    <name>mapreduce.jobhistory.webapp.address</name>

    <value>hadoop-001:19888</value>

</property>

       2)查看启动历史服务器文件目录:

[hadoop@hadoop-001 hadoop-2.7.2]# ls sbin/ |grep mr

mr-jobhistory-daemon.sh

       3)启动历史服务器

sbin/mr-jobhistory-daemon.sh start historyserver

       4)查看历史服务器是否启动

              jps

       5)查看jobhistory

http://hadoop-001:19888/jobhistory

日志的聚集

日志聚集概念:应用运行完成以后,将日志信息上传到HDFS系统上

       开启日志聚集功能步骤:

(1)配置yarn-site.xml

<!-- 日志聚集功能使能 -->

<property>

<name>yarn.log-aggregation-enable</name>

<value>true</value>

</property>

<!-- 日志保留时间设置7天 -->

<property>

<name>yarn.log-aggregation.retain-seconds</name>

<value>604800</value>

</property>

(2)关闭nodemanager 、resourcemanager和historymanager

sbin/yarn-daemon.sh stop resourcemanager

sbin/yarn-daemon.sh stop nodemanager

sbin/mr-jobhistory-daemon.sh stop historyserver

(3)启动nodemanager 、resourcemanager和historymanager

sbin/yarn-daemon.sh start resourcemanager

sbin/yarn-daemon.sh start nodemanager

sbin/mr-jobhistory-daemon.sh start historyserver

              (4)删除hdfs上已经存在的hdfs文件

bin/hdfs dfs -rm -R /gec/mapreduce/wordcount/output

              (5)执行wordcount程序

hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar wordcount /gec/mapreduce/wordcount/input /gec/mapreduce/wordcount/output

              (6)查看日志

http://hadoop-001:19888/jobhistory

 

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转载自www.cnblogs.com/Transkai/p/10440884.html
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