优化Ubuntu Hadoop配置可以从多个方面入手,包括硬件优化、系统设置优化、网络优化等。以下是详细的优化步骤和建议:
sudo apt update && sudo apt upgrade
sudo systemctl disable service_names
sudo systemctl stop service_name
sudo sysctl -w vm.swappiness=10
ifconfig
route
export HADOOP_HOME=/usr/local/hadoop
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
cd /usr/local/hadoop/etc/hadoop
core-site.xml
文件:<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
hdfs-site.xml
文件:<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/usr/local/hadoop/tmp/dfs/namenode</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/usr/local/hadoop/tmp/dfs/data</value>
</property>
</configuration>
mapred-site.xml
文件:<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
yarn-site.xml
文件:<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.resourcemanager.hostname</name>
<value>localhost</value>
</property>
</configuration>
./sbin/start-dfs.sh
./sbin/start-yarn.sh
http://localhost:50070
查看HDFS状态。http://localhost:8088
查看YARN资源管理器。通过以上步骤,可以显著提高Ubuntu Hadoop集群的性能和稳定性。请根据具体需求和环境进行调整,并在进行任何重大的配置更改之前,先在测试环境中验证其效果。