二级Namenode会设立的Hadoop版本1.0.3后无法启动

Question

我收到此错误：

$斌/ start-all.sh

Warning: $HADOOP_HOME is deprecated. 

starting namenode, logging to /var/log/hadoop/daley/hadoop-daley-namenode-datapath3.cise.ufl.edu.out 
localhost: starting datanode, logging to /var/log/hadoop/daley/hadoop-daley-datanode-datapath3.cise.ufl.edu.out 
localhost: starting secondarynamenode, logging to /var/log/hadoop/daley/hadoop-daley-secondarynamenode-datapath3.cise.ufl.edu.out 
localhost: Exception in thread "main" java.lang.IllegalArgumentException: Does not contain a valid host:port authority: file:/// 
localhost: at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:162) 
localhost: at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:198) 
localhost: at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:228) 
localhost: at org.apache.hadoop.hdfs.server.namenode.NameNode.getServiceAddress(NameNode.java:222) 
localhost: at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.initialize(SecondaryNameNode.java:161 ) 
localhost: at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.<init>(SecondaryNameNode.java:129) 
localhost: at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:567) 
starting jobtracker, logging to /var/log/hadoop/daley/hadoop-daley-jobtracker-datapath3.cise.ufl.edu.out 
localhost: starting tasktracker, logging to /var/log/hadoop/daley/hadoop-daley-tasktracker-datapath3.cise.ufl.edu.out 

我从谷歌获得的唯一的解决办法是设置fs.default.name，我已经设置为 hdfs：// localhost：9100

Answer 1

从您提供的错误信息来看，问题可能是二级namenode的端口已被占用，可能是另一个hadoop系统在同一台机器上。所以设置配置fs.default.name是一个好方法。另一种方法是杀死占用端口的进程，这可能会导致另一个服务崩溃。