我正在尝试在Mac OS X（Java 7）上以伪分布模式启动HDFS。我已经创建了一个包含配置文件的目录，按照各种地方的说明进行操作（例如https://hadoop.apache.org/docs/r1.2.1/single_node_setup.html）。我可以无需密码ssh到本地主机。但是当我尝试启动hdfs时，我会得到以下错误：
$ start-dfs.sh --config ~/hadoop-pseudodistributed
2014-03-12 01:15:14.125 java[84567:1903] Unable to load realm info from SCDynamicStore
Starting namenodes on [2014-03-12 01:15:14,380 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
localhost]
2014-03-12: ssh: Could not resolve hostname 2014-03-12: nodename nor servname provided, or not known
Unable: ssh: Could not resolve hostname Unable: nodename nor servname provided, or not known
[main]: ssh: Could not resolve hostname [main]: nodename nor servname provided, or not known
WARN: ssh: Could not resolve hostname WARN: nodename nor servname provided, or not known
load: ssh: Could not resolve hostname load: nodename nor servname provided, or not known
-: ssh: Could not resolve hostname -: nodename nor servname provided, or not known
for: ssh: Could not resolve hostname for: nodename nor servname provided, or not known
native-hadoop: ssh: Could not resolve hostname native-hadoop: nodename nor servname provided, or not known
where: ssh: Could not resolve hostname where: nodename nor servname provided, or not known
builtin-java: ssh: Could not resolve hostname builtin-java: nodename nor servname provided, or not known
your: ssh: Could not resolve hostname your: nodename nor servname provided, or not known
applicable: ssh: Could not resolve hostname applicable: nodename nor servname provided, or not known
(NativeCodeLoader.java:<clinit>(62)): ssh: Could not resolve hostname (NativeCodeLoader.java:<clinit>(62)): nodename nor servname provided, or not known
using: ssh: Could not resolve hostname using: nodename nor servname provided, or not known
classes: ssh: Could not resolve hostname classes: nodename nor servname provided, or not known
platform...: ssh: Could not resolve hostname platform...: nodename nor servname provided, or not known
library: ssh: Could not resolve hostname library: nodename nor servname provided, or not known
localhost: starting namenode, logging to /usr/local/Cellar/hadoop/2.2.0/libexec/logs/hadoop-terry-namenode-Terrys-MacBook-Pro.local.out
01:15:14,380: ssh: Could not resolve hostname 01:15:14,380: nodename nor servname provided, or not known
to: ssh: connect to host to port 22: Connection refused
localhost: 2014-03-12 01:15:15,150 INFO [main] namenode.NameNode (StringUtils.java:startupShutdownMessage(601)) - STARTUP_MSG:
有更多输出（我得到类似的投诉，因为它试图启动辅助名称节点），但以上显然是不可取的，我显然希望解决它。
看起来脚本正在运行某些内容以获取名称节点列表，并且该内容正在转储错误（到stdout或stderr），这些错误被捕获并用作节点列表。
我尝试通过向hadoop-env.sh中添加内容（如stackoverflow上其他地方建议的那样）无法清除“无法从SCDynamicStore加载领域信息”的错误。但是，这似乎超出了文档设置步骤的范围，其中不包括将hadoop-env.sh的副本放入我的配置目录中。
我想这应该很容易，但现在已经很晚了，我很累 :-( 任何帮助都将不胜感激。
谢谢！
/etc/hosts文件，确保您的主机名引用了您的IP地址。 - iTech