安装和配置我Hadoop 2.2.0的伪分布式模式后,一切都在运行,如下所示jps:
$ jps
2287 JobHistoryServer
1926 ResourceManager
2162 NodeManager
1834 DataNode
1756 NameNode
3013 Jps
然后我运行了wordcount示例
hadoop jar $HADOOP_HOME/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar wordcount /user/hdfs/file /output
执行frezees(？)如下:
$ hadoop jar $HADOOP_HOME/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar wordcount /user/hdfs/file /output
OpenJDK 64-Bit Server VM warning: You have loaded library /home/hduser/hadoop-src/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'.
14/04/22 …