hadoop 2.2搭建常见错误

http://blog.csdn.net/haidao2009/article/details/14897813

hadoop 2.2 搭建

http://blog.csdn.net/pelick/article/details/12065147

 

1

 

但是上面这个配置里面有点小问题问题

<property>
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce.shuffle</value>
  </property>

改为

<property>
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle</value>
  </property>

不然会出现这种错误

java.lang.IllegalArgumentException: The ServiceName: mapreduce.shuffle set in yarn.nodemanager.aux-services is invalid.The valid service name should only contain a-zA-Z0-9_

 

错误日志在

hadoop-2.2.0/logs/yarn-hadoop-nodemanager-cs212.log

 

2

 

添加

export HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_PREFIX}/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_PREFIX/lib"

不然会出现下面的错误。

 

Hadoop 2.2.0 - warning: You have loaded library /home/hadoop/2.2.0/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard.

 

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/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'.

localhost]

sed: -e expression #1, char 6: unknown option to `s'

HotSpot(TM): ssh: Could not resolve hostname HotSpot(TM): Name or service not known

64-Bit: ssh: Could not resolve hostname 64-Bit: Name or service not known

Java: ssh: Could not resolve hostname Java: Name or service not known

Server: ssh: Could not resolve hostname Server: Name or service not known

VM: ssh: Could not resolve hostname VM: Name or service not known

解决：

ou add a variable on .bash_profile
$ nano ~/.bash_profile
export HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_PREFIX}/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_PREFIX/lib"

Apply it.
$ source ~/.bash_profile

And.. starting!!
$ start-all.sh

3.

centos 默认开启了 ipv6    hadoop 8088 那些服务完全打不开。

centos6 linux禁用IPv6，解决大量 TIME_WAIT ::ffff:127.0.0.1:59299

没设置好 很多服务无法访问

http://www.qbage.com/post/48-centos6-disable-ipv6.html