1.hadoop 日誌默認生產路徑是各個datanode節點上 hadoop環境變量對應的logs文件夾下面:
設置完日誌聚合之後生成的路徑:
但是怎麼樣設置日誌聚合呢?
<property>
<name>yarn.log-aggregation-enable</name>
<value>true</value><!--是否設置聚合,默認是false-->
</property>
<property>
<name>yarn.log-aggregation.retain-seconds</name>
<value>259200</value><span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;"><!--3天之後清除聚合的日誌文件--></span>
</property>
<property>
<name>yarn.log-aggregation.retain-check-interval-seconds</name>
<value>-1</value><span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;"><!---1 或者0天之後清除聚合的日誌文件--></span>
</property>
<property>
<name>yarn.nodemanager.remote-app-log-dir</name>
<value>/tmp/logs</value><span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;"><!---聚合日誌生產的hdfs路徑--></span>
</property>