在hadoop中启动守护进程时出错

Question

我是 hadoop 新手，尝试在伪分布式模式下配置 hadoop，当我尝试通过以下命令

bin/start-all.sh

启动守护程序时，我收到以下消息

    starting namenode, logging to /data/hadoop/hadoop-0.20.2/bin/../logs/hadoop-waqas-namenode-trinity.out
localhost: starting datanode, logging to /data/hadoop/hadoop-0.20.2/bin/../logs/hadoop-waqas-datanode-trinity.out
localhost: starting secondarynamenode, logging to /data/hadoop/hadoop-0.20.2/bin/../logs/hadoop-waqas-secondarynamenode-trinity.out
localhost: Exception in thread "main" java.lang.NumberFormatException: For input string: "localhost:9000"
localhost:      at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
localhost:      at java.lang.Integer.parseInt(Integer.java:492)
localhost:      at java.lang.Integer.parseInt(Integer.java:527)
localhost:      at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:146)
localhost:      at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:156)
localhost:      at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:160)
localhost:      at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.initialize(SecondaryNameNode.java:131)
localhost:      at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.<init>(SecondaryNameNode.java:115)
localhost:      at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:469)
starting jobtracker, logging to /data/hadoop/hadoop-0.20.2/bin/../logs/hadoop-waqas-jobtracker-trinity.out
localhost: starting tasktracker, logging to /data/hadoop/hadoop-0.20.2/bin/../logs/hadoop-waqas-tasktracker-trinity.out

Answer 1

检查 hdfs-site.xml 中的 dfs.namenode.secondary.http-address 属性。当设置为 :localhost:50090 时，我遇到了同样的错误。您可以将其保留为默认值0.0.0.0:50090，除非存在端口冲突。