我在Ubuntu上使用 Hadoop版本2.4.1 14.04 32位
当我使用 hadoop jar user_jar.jar 命令运行示例作业时,我看不到上的输出http://localhost:19888 (未找到页面)
可能是什么原因?
先感谢您。

JPS output :

3931 Jps
3719 NodeManager
3420 SecondaryNameNode
3593 ResourceManager
3246 DataNode
3126 NameNode

core-site.xml
<configuration>
<property>
  <name>hadoop.tmp.dir</name>
  <value>/app/hadoop/tmp</value>

</property>

<property>
  <name>fs.default.name</name>
  <value>hdfs://localhost:54310</value>

</property>
</configuration>

hdfs-site.xml
<configuration>
<property>
  <name>dfs.replication</name>
  <value>1</value>
</property>
</configuration>

mapred-site.xml
<configuration>
    <property>
        <name>mapreduce.framework.name</name>
        <value>yarn</value>
    </property>
</configuration>

yarn-site.xml
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
</configuration>

最佳答案

运行mr-jobhistory-daemon:

$ $HADOOP_HOME/sbin/mr-jobhistory-daemon.sh --config $HADOOP_CONFIG_DIR start historyserver

现在
$ jps2135 DataNode2339 SecondaryNameNode2627 NodeManager3176 JobHistoryServer1971 NameNode3213 Jps2485 ResourceManager

$ netstat -ntlp | grep 19888(Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.)tcp 0 0 127.0.0.1:19888 0.0.0.0:* LISTEN 3176/java

10-06 07:15