在"系統偏好設置"->"共享",設置以下:html
ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa複製代碼
一路next,最終會在~/.ssh目錄生成idrsa和idrsa.pub文件java
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys複製代碼
Last login: Sun Oct 13 21:44:17 on ttys000
(base) zhaoqindeMBP:~ zhaoqin$ ssh localhost
Last login: Sun Oct 13 21:48:57 2019
(base) zhaoqindeMBP:~ zhaoqin$複製代碼
若是隻須要hadoop單機模式,如今就能夠了,可是單機模式沒有hdfs,所以接下來要作僞分佈模式的設置;node
進入目錄hadoop-3.2.1/etc/hadoop,作如下設置:程序員
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Home複製代碼
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>複製代碼
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>複製代碼
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>複製代碼
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.env-whitelist</name>
<value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME</value>
</property>
</configuration>複製代碼
./hdfs namenode -format複製代碼
初始化成功後,可見以下信息:web
2019-10-13 22:13:32,468 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
2019-10-13 22:13:32,473 INFO namenode.FSImage: FSImageSaver clean checkpoint: txid=0 when meet shutdown.
2019-10-13 22:13:32,474 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at zhaoqindeMBP/192.168.50.12
************************************************************/複製代碼
(base) zhaoqindeMBP:sbin zhaoqin$ ./start-dfs.sh
Starting namenodes on [localhost]
Starting datanodes
Starting secondary namenodes [zhaoqindeMBP]
zhaoqindeMBP: Warning: Permanently added 'zhaoqindembp,192.168.50.12' (ECDSA) to the list of known hosts.
2019-10-13 22:28:30,597 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable複製代碼
上面的警告不會影響使用;apache
base) zhaoqindeMBP:sbin zhaoqin$ ./start-yarn.sh
Starting resourcemanager
Starting nodemanagers複製代碼
(base) zhaoqindeMBP:sbin zhaoqin$ jps
2161 NodeManager
1825 SecondaryNameNode
2065 ResourceManager
1591 NameNode
2234 Jps
1691 DataNode複製代碼
至此,hadoop3僞分佈式環境的部署、設置、啓動都已經完成。瀏覽器
進入目錄hadoop-3.2.1/sbin,執行./stop-all.sh便可關閉hadoop的全部服務:markdown
(base) zhaoqindeMBP:sbin zhaoqin$ ./stop-all.sh
WARNING: Stopping all Apache Hadoop daemons as zhaoqin in 10 seconds.
WARNING: Use CTRL-C to abort.
Stopping namenodes on [localhost]
Stopping datanodes
Stopping secondary namenodes [zhaoqindeMBP]
2019-10-13 22:49:00,941 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Stopping nodemanagers
Stopping resourcemanager複製代碼
以上就是Mac環境部署hadoop3的所有過程,但願能給您一些參考。app