Hadoop：NameNode，DataNode和SecondaryNameNode未运行

Question

我正在尝试使用本教程在我的计算机上的单节点群集上安装Hadoop 2.2.0 http://codesfusion.blogspot.gr/2013/10/setup-hadoop-2x-220-on-ubuntu.html?m = 1 。 我按照我看到的每一条指令，一步一步地按照每次都有同样的问题。 NameNode，DataNode和SecondaryNameNode未运行。 我在输入start-dfs.sh，start-yarn.sh和jps时看到的消息是：

hduser@victor-OEM:/usr/local/hadoop/sbin$ start-dfs.sh
Incorrect configuration: namenode address dfs.namenode.servicerpc-address or dfs.namenode.rpc-address is not configured.
Starting namenodes on []
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-hduser-namenode-victor-OEM.out
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-hduser-datanode-victor-OEM.out
Starting secondary namenodes [0.0.0.0]
The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.
ECDSA key fingerprint is 62:ec:99:e3:ce:2d:f8:79:1f:f8:9a:2a:25:9d:17:95.
Are you sure you want to continue connecting (yes/no)? yes
0.0.0.0: Warning: Permanently added '0.0.0.0' (ECDSA) to the list of known hosts.
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-hduser-secondarynamenode-victor-OEM.out
hduser@victor-OEM:/usr/local/hadoop/sbin$ start-yarn.sh
starting yarn daemons
starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-hduser-resourcemanager-victor-OEM.out
localhost: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-hduser-nodemanager-victor-OEM.out
hduser@victor-OEM:/usr/local/hadoop/sbin$ jps
10684 NodeManager
10745 Jps
10455 ResourceManager

Answer 1

某些版本的codefusion教程 （例如此版本）省略了代码块中的xml标记，以便：

#add this to foo.txt   
<bizz>bar</bizz>

成为：

#add this to foo.txt
bar

在配置中包含xml标记解决了问题。

Answer 2

你可以尝试这个链接： Leraning hadoop 。 它是0.23.9但也适用于2.2.0

Answer 3

在hadoop-env.sh中禁用IPv6：

export HADOOP_OPTS=-Djava.net.preferIPv4Stack=true

Answer 4

我有同样的问题。

我通过禁用防火墙解决了这个问题。

只需使用此命令

sudo ufw disbale 

Answer 5

我试过以下步骤：

1. ssh-keygen -t rsa -P“”

2. cat $ HOME / .ssh / id_rsa.pub >> $ HOME / .ssh / authorized_keys

之后，打开一个新终端并启动Hadoop集群，解决我的问题。