本文为您介绍E-MapReduce中常用文件的路径。您可以登录Master节点查看常用文件的安装路径。

大数据组件目录

软件安装目录在/usr/lib/xxx下，例如：
  • Hadoop：/usr/lib/hadoop-current
  • Spark ：/usr/lib/spark-current
  • Hive：/usr/lib/hive-current
  • Flink：/usr/lib/flink-current
  • Flume：/usr/lib/flume-current

您也可以通过登录Master节点，执行env |grep xxx命令查看软件的安装目录。

例如，执行以下命令，查看Hadoop的安装目录。 
env |grep hadoop
返回如下信息，其中/usr/lib/hadoop-current为Hadoop的安装目录。 
HADOOP_LOG_DIR=/var/log/hadoop-hdfs
HADOOP_HOME=/usr/lib/hadoop-current
YARN_PID_DIR=/usr/lib/hadoop-current/pids
HADOOP_PID_DIR=/usr/lib/hadoop-current/pids
HADOOP_MAPRED_PID_DIR=/usr/lib/hadoop-current/pids
JAVA_LIBRARY_PATH=/usr/lib/hadoop-current/lib/native:
PATH=/usr/lib/sqoop-current/bin:/usr/lib/spark-current/bin:/usr/lib/hive-current/hcatalog/bin:/usr/lib/hive-current/bin:/usr/lib/datafactory-current/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/usr/lib/b2monitor-current//bin:/usr/lib/b2smartdata-current//bin:/usr/lib/b2jindosdk-current//bin:/usr/lib/flow-agent-current/bin:/usr/lib/hadoop-current/bin:/usr/lib/hadoop-current/sbin:/usr/lib/hadoop-current/bin:/usr/lib/hadoop-current/sbin:/root/bin
HADOOP_CLASSPATH=/usr/lib/hadoop-current/lib/*:/usr/lib/tez-current/*:/usr/lib/tez-current/lib/*:/etc/ecm/tez-conf:/opt/apps/extra-jars/*:/usr/lib/spark-current/yarn/spark-2.4.5-yarn-shuffle.jar
HADOOP_CONF_DIR=/etc/ecm/hadoop-conf
YARN_LOG_DIR=/var/log/hadoop-yarn
HADOOP_MAPRED_LOG_DIR=/var/log/hadoop-mapred

日志目录

组件日志目录在/mnt/disk1/log/xxx下，例如：
  • Yarn ResourceManager日志：Master节点/mnt/disk1/log/hadoop-yarn
  • Yarn NodeNanager日志：Slave节点/mnt/disk1/log/hadoop-yarn
  • HDFS NameNode日志：Master节点/mnt/disk1/log/hadoop-hdfs
  • HDFS DataNode日志：Slave节点/mnt/disk1/log/hadoop-hdfs
  • Hive日志：Master节点/mnt/disk1/log/hive
  • ESS日志：Master和Worker节点/mnt/disk1/log/ess/

配置文件

配置文件目录在/etc/ecm/xxx下，例如：
  • Hadoop：/etc/ecm/hadoop-conf/
  • Spark：/etc/ecm/spark-conf/
  • Hive：/etc/ecm/hive-conf/
  • Flink：/etc/ecm/flink-conf/
  • Flume：/etc/ecm/flume-conf/

如果您需要修改配置文件中的参数，请登录E-MapReduce控制台操作，通过SSH方式只能浏览配置文件中的参数。

数据目录

JindoFS缓存数据：/mnt/disk*/bigboot/

管控Agent目录

警告 请勿删除以下目录，否则会影响EMR集群正常运行。
  • /usr/local/ecm-agent
  • /var/lib/ecm-agent
  • /etc/ecm-agent