Hadoop“not get namenode with jps command”为什么namenode没有启动

-2

 

[email protected]:/usr/local/hadoop$ sbin/start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh 
Starting namenodes on [localhost] 
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-hadoop1-namenode-xyzfsdemo.out 
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-hadoop1-datanode-xyzfsdemo.out 
Starting secondary namenodes [0.0.0.0] 
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-hadoop1-secondarynamenode-xyzfsdemo.out 
starting yarn daemons 
starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-hadoop1-resourcemanager-xyzfsdemo.out 
localhost: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-hadoop1-nodemanager-xyzfsdemo.out 
[email protected]:/usr/local/hadoop$ jps 
52396 DataNode 
53151 Jps 
53072 NodeManager 
52660 SecondaryNameNode 
52860 ResourceManager

来源

2015-07-22 sanjeev

详细说明您的问题 –

检查namenode日志并找到确切的问题。我相信你是第一次开始这个。一个问题，你是否在尝试启动之前格式化了namenode。 –

我必须在每次启动之前合成namenode。 – sanjeev

您应该在每次启动之前格式化您的namenode。

$HADOOP_INSTALL/hadoop/bin/hadoop namenode -format

来源

2015-07-22 09:31:43 masoumeh

请问您为什么需要在启动hadoop前每次格式化nodename？ – sanjeev

感谢您的回复 – sanjeev

这是hadoop的规则。我不知道这背后是什么概念。 – masoumeh

Hadoop“not get namenode with jps command”为什么namenode没有启动

回答

相关问题