配置日志聚集(伪分布式模式)
配置日志聚集
注意:开启日志聚集功能,需要重新启动NodeManager 、ResourceManager 和 HistoryManager。
配置 yarn-site.xml
[xiaoran@hadoop101 hadoop-2.7.2]$ vim etc/hadoop/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>
关闭 NodeManager、ResourceManager、HistoryManager
[xiaoran@hadoop101 hadoop-2.7.2]$ sbin/mr-jobhistory-daemon.sh start historyserver
[xiaoran@hadoop101 hadoop-2.7.2]$ sbin/yarn-daemon.sh stop nodemanager
[xiaoran@hadoop101 hadoop-2.7.2]$ sbin/yarn-daemon.sh stop resourcemanager
启动 NodeManager、ResourceManager、HistoryManager
[xiaoran@hadoop101 hadoop-2.7.2]$ sbin/yarn-daemon.sh start resourcemanager
[xiaoran@hadoop101 hadoop-2.7.2]$ sbin/yarn-daemon.sh start nodemanager
[xiaoran@hadoop101 hadoop-2.7.2]$ sbin/mr-jobhistory-daemon.sh start historyserver