Could not resolve hostname hadoop.master: Name or service not known

最新推荐文章于 2024-11-20 20:54:38 发布

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本文记录了启动Hadoop集群过程中遇到的问题及解决方法。主要问题包括未能加载本地Hadoop库、名称节点未正确配置以及主机名解析失败等。通过修改hdfs-site.xml文件和在/etc/hosts中添加主机名映射解决了这些问题。

[root@localhost ~]# start-dfs.sh
16/08/15 00:19:20 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
16/08/15 00:19:20 WARN hdfs.DFSUtil: Namenode for null remains unresolved for ID null.  Check your hdfs-site.xml file to ensure namenodes are configured properly.
Starting namenodes on [Hadoop.Master]
Hadoop.Master: ssh: Could not resolve hostname hadoop.master: Name or service not known
localhost: starting datanode, logging to /usr/hadoop/logs/hadoop-root-datanode-hadoop.master.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /usr/hadoop/logs/hadoop-root-secondarynamenode-hadoop.master.out
16/08/15 00:19:32 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable