Question

我在vmware上安装了hadoop-2.2.0版本，当它启动时，它会显示所有进程正在运行，但是一段时间后datanode被杀死了。所以，我检查了日志，我发现了这个：

2014-01-21 04:36:00,325 WARN org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2014-01-21 04:36:21,034 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
java.net.UnknownHostException: ubuntu: ubuntu
at java.net.InetAddress.getLocalHost(InetAddress.java:1402)
at org.apache.hadoop.security.SecurityUtil.getLocalHostName(SecurityUtil.java:227)
at org.apache.hadoop.security.SecurityUtil.login(SecurityUtil.java:247)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1640)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1665)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1837)
at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1858)
2014-01-21 04:36:21,107 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
2014-01-21 04:36:21,114 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at java.net.UnknownHostException: ubuntu: ubuntu
************************************************************/

Answer 1

我认为问题出在您的/etc/hosts文件中。确保配置正确。我的/etc/hosts文件如下所示：

127.0.0.1       localhost
192.168.0.1     master  mypcname
192.168.0.18    slave1
192.168.0.12    slave2
192.168.0.17    slave3

表示主人和

127.0.0.1       localhost
192.168.0.1     master
192.168.0.18    slave1  slave1pcname
192.168.0.12    slave2
192.168.0.17    slave3

for slave1。

hadoop datanode在几秒钟后死亡

1 个答案: