hadoop 2.2.0 64位安装，但无法启动

Question

我正在尝试在服务器上安装Hadoop 2.2.0群集。现在所有的服务器都是64位的，我下载了Hadoop 2.2.0，所有的配置文件都已经设置好了。当我跑步的时候/启动dfs。sh，我得到以下错误：

13/11/15 14:29:26 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /home/hchen/hadoop-2.2.0/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.namenode]
sed: -e expression #1, char 6: unknown option to `s' have: ssh: Could not resolve hostname have: Name or service not known
HotSpot(TM): ssh: Could not resolve hostname HotSpot(TM): Name or service not known
-c: Unknown cipher type 'cd'
Java: ssh: Could not resolve hostname Java: Name or service not known
The authenticity of host 'namenode (192.168.1.62)' can't be established.
RSA key fingerprint is 65:f9:aa:7c:8f:fc:74:e4:c7:a2:f5:7f:d2:cd:55:d4.
Are you sure you want to continue connecting (yes/no)? VM: ssh: Could not resolve        hostname VM: Name or service not known
You: ssh: Could not resolve hostname You: Name or service not known
warning:: ssh: Could not resolve hostname warning:: Name or service not known
library: ssh: Could not resolve hostname library: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
64-Bit: ssh: Could not resolve hostname 64-Bit: Name or service not known
...

除了64位之外，还有其他错误吗？我已经在没有密码的情况下完成了namenode和datanodes之间的登录，其他错误意味着什么？

Answer 1

您还可以在hadoop-env.sh中导出变量

vim /usr/local/hadoop/etc/hadoop/hadoop-env.sh

/usr/local/hadoop-我的hadoop安装文件夹

#Hadoop variables
export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-amd64 # your jdk install path
export HADOOP_INSTALL=/usr/local/hadoop
export PATH=$PATH:$HADOOP_INSTALL/bin
export PATH=$PATH:$HADOOP_INSTALL/sbin
export HADOOP_MAPRED_HOME=$HADOOP_INSTALL
export HADOOP_COMMON_HOME=$HADOOP_INSTALL
export HADOOP_HDFS_HOME=$HADOOP_INSTALL
export YARN_HOME=$HADOOP_INSTALL
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib"

Answer 2

根本原因是hadoop中的默认本机库是为32位构建的。解决方案

1） 在中设置一些环境变量。bash\u配置文件。请参阅https://gist.github.com/ruo91/7154697或

2） 重建hadoop本机库，请参阅http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/NativeLibraries.html

Answer 3

将以下条目添加到. bashrc，其中HADOOP_HOME是您的hadoop文件夹：

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"

此外，执行以下命令：

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys