docker :使用dockercompose 编排一个Hadoop集群
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2022-05-14 20:35:57
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本文使用docker-compose 最简单的方式编排一个Hadoop集群
运行脚本文件:
version: "3"
services:
namenode:
image: bde2020/hadoop-namenode:2.0.0-hadoop3.1.2-java8
container_name: namenode
ports:
- 9870:9870
volumes:
- hadoop_namenode:/hadoop/dfs/name
environment:
- CLUSTER_NAME=test
env_file:
- ./hadoop.env
datanode:
image: bde2020/hadoop-datanode:2.0.0-hadoop3.1.2-java8
container_name: datanode
volumes:
- hadoop_datanode:/hadoop/dfs/data
environment:
SERVICE_PRECONDITION: "namenode:9870"
env_file:
- ./hadoop.env
resourcemanager:
image: bde2020/hadoop-resourcemanager:2.0.0-hadoop3.1.2-java8
container_name: resourcemanager
environment:
SERVICE_PRECONDITION: "namenode:9870 datanode:9864"
env_file:
- ./hadoop.env
nodemanager1:
image: bde2020/hadoop-nodemanager:2.0.0-hadoop3.1.2-java8
container_name: nodemanager
environment:
SERVICE_PRECONDITION: "namenode:9870 datanode:9864 resourcemanager:8088"
env_file:
- ./hadoop.env
historyserver:
image: bde2020/hadoop-historyserver:2.0.0-hadoop3.1.2-java8
container_name: historyserver
environment:
SERVICE_PRECONDITION: "namenode:9870 datanode:9864 resourcemanager:8088"
volumes:
- hadoop_historyserver:/hadoop/yarn/timeline
env_file:
- ./hadoop.env
volumes:
hadoop_namenode:
hadoop_datanode:
hadoop_historyserver:
运行方式:
docker-compose up
运行 wordcount job
make wordcount
相关的访问地址
Namenode: http://<dockerhadoop_IP_address>:9870/dfshealth.html#tab-overview
History server: http://<dockerhadoop_IP_address>:8188/applicationhistory
Datanode: http://<dockerhadoop_IP_address>:9864/
Nodemanager: http://<dockerhadoop_IP_address>:8042/node
Resource manager: http://<dockerhadoop_IP_address>:8088/
配置环境变量
配置参数可以在hadoop.env文件中指定,也可以作为特定服务(如namenode、datanode等)的环境变量指定:
可用配置包括:
/etc/hadoop/core-site.xml CORE_CONF
/etc/hadoop/hdfs-site.xml HDFS_CONF
/etc/hadoop/yarn-site.xml YARN_CONF
/etc/hadoop/httpfs-site.xml HTTPFS_CONF
/etc/hadoop/kms-site.xml KMS_CONF
/etc/hadoop/mapred-site.xml MAPRED_CONF