配置错误:namenode地址dfs.namenode.rpc-address没有配置 [英] Incorrect configuration: namenode address dfs.namenode.rpc-address is not configured

问题描述

当我尝试启动 DataNode 时出现此错误.根据我的阅读，RPC 参数仅用于 HA 配置，我没有设置(我认为).

I am getting this error when I try and boot up a DataNode. From what I have read, the RPC paramters are only used for a HA configuration, which I am not setting up (I think).

2014-05-18 18:05:00,589 INFO  [main] impl.MetricsSystemImpl (MetricsSystemImpl.java:shutdown(572)) - DataNode metrics system shutdown complete.
2014-05-18 18:05:00,589 INFO  [main] datanode.DataNode (DataNode.java:shutdown(1313)) -     Shutdown complete.
2014-05-18 18:05:00,614 FATAL [main] datanode.DataNode (DataNode.java:secureMain(1989)) - Exception in secureMain
java.io.IOException: Incorrect configuration: namenode address dfs.namenode.servicerpc-address or dfs.namenode.rpc-address is not configured.
at org.apache.hadoop.hdfs.DFSUtil.getNNServiceRpcAddresses(DFSUtil.java:840)
at   org.apache.hadoop.hdfs.server.datanode.BlockPoolManager.refreshNamenodes(BlockPoolManager.java:151)
at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:745)
at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:278)

我的文件看起来像:

[root@datanode1 conf.cluster]# cat core-site.xml

[root@datanode1 conf.cluster]# cat core-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>

<property>
 <name>fs.defaultFS</name>
 <value>hdfs://namenode:8020</value>
</property>

</configuration>

cat hdfs-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>
<property>
 <name>dfs.datanode.data.dir</name>
 <value>/hdfs/data</value>
</property>
<property>
 <name>dfs.permissions.superusergroup</name>
 <value>hadoop</value>
</property>
</configuration>

我使用的是最新的 CDH5 发行版.

I am using the latest CDH5 distro.

Installed Packages
Name        : hadoop-hdfs-datanode
Arch        : x86_64
Version     : 2.3.0+cdh5.0.1+567
Release     : 1.cdh5.0.1.p0.46.el6

关于如何解决这个问题有什么有用的建议吗?

Any helpful advice on how to get past this?

只需使用 Cloudera 管理器.

Just use Cloudera manager.

推荐答案

我也遇到了同样的问题，最后发现 fs.default.name 值中有空格.截断空间解决了这个问题.上面的 core-site.xml 似乎没有空间，所以问题可能与我所遇到的不同.我的 2 美分

I too was facing the same issue and finally found that there was a space in fs.default.name value. truncating the space fixed the issue. The above core-site.xml doesn't seem to have space so the issue may be different from what i had. my 2 cents

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